CN102815964A - Construction waste recycling and reusing process - Google Patents
Construction waste recycling and reusing process Download PDFInfo
- Publication number
- CN102815964A CN102815964A CN201210344546XA CN201210344546A CN102815964A CN 102815964 A CN102815964 A CN 102815964A CN 201210344546X A CN201210344546X A CN 201210344546XA CN 201210344546 A CN201210344546 A CN 201210344546A CN 102815964 A CN102815964 A CN 102815964A
- Authority
- CN
- China
- Prior art keywords
- concrete
- waste
- cement
- construction
- foamed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a construction waste recycling and reusing process, which comprises the following steps of: 1, collecting waste concrete, waste mortar and waste brick slag; 2, smashing and screening, namely smashing and screening the collected waste concrete, the collected waste mortar and the collected waste brick slag to obtain regenerative rough aggregates and regenerative fine aggregates; and 3, preparing foam concrete, namely firstly preparing cement slurry, namely uniformly stirring concrete, water, the regenerative rough aggregates and the regenerative fine aggregates to obtain the cement slurry, and secondly adding a foam dilution solution, namely adding the foam dilution solution formed by uniformly mixing a foaming agent and water into the cement slurry, and uniformly stirring to obtain the foam concrete. The steps of the process are simple; the investment cost is low; the process is simple, feasible and high in operability; the waste concrete, the waste mortar and the waste brick slag can be effectively reused; the economical benefit is outstanding; the produced foam concrete material is high in heat preservation performance; and the problems that the construction waste is abandoned and stacked randomly and occupies the land, the waste of resources is severe, and the environment pollution is severe are solved.
Description
Technical field
The invention belongs to building waste recovery and utilization technology field, especially relate to a kind of building waste recycling technology.
Background technology
All kinds of wastes that construction work produces in construction process are referred to as building waste.The development of advancing by leaps and bounds along with construction industry in recent years, the building waste that thereupon produces are also more and more, and it not only causes the ample resources waste, and need take very large space, influences urban environment, bring inconvenience to people's productive life.Thereby working-yard reply building waste carries out categorised collection, rationally handles and utilizes, and different building wastes should be provided with suitable collection device, must not arbitrarily burn, abandon, and must not sneak into domestic refuse.Wherein, the building waste that the working-yard produced mainly comprises following several types: dregs, waste concrete, mortar and brick slag; Culled wood scrap metal material; Plastic waste, useless wrapping material, glass, pottery and stone material fragment have pollution, contain toxic chemical material and container etc.Nowadays at present; Construction site does not carry out categorised collection and utilizes the building waste that is produced mostly; Thereby on-the-spot often existence mixes the building waste in one in a large number, arbitrarily abandons the stacking land occupation, influences construction environment; And cause the bigger wasting of resources, also need spend lot of manpower and material resources simultaneously and carry out garbage-cleaning.
Summary of the invention
Technical problem to be solved by this invention is to above-mentioned deficiency of the prior art; A kind of building waste recycling technology is provided; Its process step is simple, input cost is low, simple and workable, can effectively re-use waste concrete, waste mortar and deposed brick slag, remarkable in economical benefits; And the foamed concrete material good heat insulating of being produced can effectively solve building waste and arbitrarily abandon multiple practical problemss such as stacking land occupation, the wasting of resources are serious, environmental pollution is big.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of building waste recycling technology is characterized in that this technology may further comprise the steps:
Step 1, waste concrete, waste mortar and deposed brick slag are collected: manual work is collected waste concrete, waste mortar and deposed brick slag that construction site produced;
Step 2, broken and screening: adopt disintegrating apparatus that waste concrete collected in the step 1, waste mortar and deposed brick slag are carried out fragmentation; And the material after the fragmentation sieved, the regenerated coarse aggregate and the particle diameter that obtain particle diameter and be 1cm～2.5cm are the recycled fine aggregate of 2mm～5mm;
Step 3, foamed concrete preparation, its preparation process is following:
Step 301, cement slurry preparation: after adopting concrete batch plant that cement, water and regenerated coarse aggregate that step 2 obtained and recycled fine aggregate are evenly stirred, obtain cement slurry; The weight ratio of cement, water, regenerated coarse aggregate and recycled fine aggregate is 280 ︰, 129～170 ︰, 300～320 ︰ 240～260 in the said cement slurry;
Step 302, foam diluent are added: will be by whipping agent and water by weight the foam diluent that the ratio that is 1 ︰ 33～38 is uniformly mixed to form, and be added into described in the step 301 in the cement slurry and stir, make foamed concrete; Weight ratio described in said whipping agent and the step 301 between the cement is 1.8～2.5 ︰ 280.
Above-mentioned a kind of building waste recycling technology is characterized in that: the waste concrete described in the step 1 is the waste and old concrete piece that produces behind the waste and old concrete piece that produces behind the concrete clout after the broken concrete, the concrete placement that produce in the broken concrete that produces in the concrete transportation, the concrete pouring construction process are accomplished, the temporary concrete structural demolition that construction site is built or the waste and old concrete structural demolition that construction site is existed;
Wherein, the broken concrete that produces in the concrete transportation comprises because of shedding, leak the broken concrete that material, flash or cleaning produce; The broken concrete that produces in the concrete pouring construction process comprises because of shedding, leak material, flash, cleaning or dismounting builds the broken concrete that forming panel produces;
The waste and old mortar piece that produces behind the mortar heals that said waste mortar is the mortar fragment that produces in ash, the light cellular partition board construction process of landing of producing in the mortar fragment that produces in the sand-cement slurry transportation, the masonry of cement mortar plastering construction, the masonry of cement mortar plastering construction is accomplished, the temporary building structural demolition that construction site is built and the waste and old building structure that construction site exists removed the waste and old mortar piece that the back produces;
Wherein, the mortar fragment that produces in the sand-cement slurry transportation comprises because of shedding, leak the mortar fragment that material, flash or cleaning produce;
Said deposed brick slag is that the useless fragment of brick that the back produces is removed in the waste and old building structure that exists because of the temporary building structure of cutting the queen closer that produces because of life-time service on the queen closer of cutting formation, the brick pavement and construction site being built and construction site in the damaged fragment of brick collected in the process of transportation and depositing, the building construction process.
Above-mentioned a kind of building waste recycling technology is characterized in that: described in the step 301 in the cement slurry weight ratio of cement, water, regenerated coarse aggregate and recycled fine aggregate be 280 ︰, 145～160 ︰, 300～320 ︰ 240～260; The weight ratio of whipping agent and water is 1 ︰ 35～36 in the diluent of foam described in the step 302, and the weight ratio between the cement described in said whipping agent and the step 301 is 2～2.2 ︰ 280.
Above-mentioned a kind of building waste recycling technology, it is characterized in that: whipping agent described in the step 302 is the vegetalitas cement blowing agent; Carry out cement slurry in the step 301 when preparing; Also need in prepared cement slurry, to add pumping agent and concrete shrinkage shim; The weight ratio of being added between pumping agent and the cement is 1～1.5 ︰ 280, and the weight ratio of being added between concrete shrinkage shim and the cement is 3～7 ︰ 280.
Above-mentioned a kind of building waste recycling technology; It is characterized in that: after cement slurry stirs described in the step 301; The HPP of the cement foamed machine through being laid in construction site is sent into said cement slurry in the high-pressure delivery pipe of said cement foamed machine; Foam diluent described in the step 302 is delivered in the foaming tube of said cement foamed machine, and the corresponding foam capsule that is blow molded into diameter 0.5mm～2mm; Afterwards, said foam capsule is sent into through transfer lime and is carried out thorough mixing in the said high-pressure delivery pipe, forms foamed concrete.
Above-mentioned a kind of building waste recycling technology is characterized in that: after the preparation of foamed concrete described in the step 302 is accomplished, also need carry out the foamed concrete pumping construction; And when said foamed concrete is carried out pumping construction, adopt concrete pumping equipment that obtained foamed concrete is pumped on the ground layer that need lay spoke thermal recovery heating coil road, ground, and form the foamed concrete bed course that a layer thickness is 3cm～7cm; After treating that institute's pumping foamed concrete solidifies, need are laid ground spoke thermal recovery heating coil road be laid on the said foamed concrete bed course.
Above-mentioned a kind of building waste recycling technology; It is characterized in that: said foamed concrete is carried out before the pumping construction; On said ground layer, smear earlier a plurality of ash cakes; A plurality of said ash cakes are even laying, and the spacing between adjacent two the said ash cakes with front and back of the spacing between adjacent two the said ash cakes in the left and right sides is 2m ± 0.2m, and the overhead height of a plurality of said ash cakes is for needing the top absolute altitude of the said foamed concrete bed course of construction; After treating that obtained foamed concrete is pumped on the ground layer that need lay spoke thermal recovery heating coil road, ground, said foamed concrete is the flat-shaped attitude of gravity flow, and the virtual resurfacing thickness of said foamed concrete is 1.1 times～1.2 times of the said foamed concrete bed course bed thickness of need constructing; Before waiting to be pumped to the foamed concrete initial set on the said ground layer, slightly wipe off along the height of said ash cake, just accomplish the pumping construction process of said foamed concrete bed course with darby; Afterwards, the said foamed concrete bed course of pumping construction being accomplished carries out natural curing.
Above-mentioned a kind of building waste recycling technology, it is characterized in that: said ground layer is the floor plates of multi-storey residential buildings, and said foamed concrete is carried out need carrying out base treatment earlier before the pumping construction; And when carrying out base treatment; Earlier that the cleaning of the dust on the said ground layer is clean; Again grey laitance coating on the said ground layer and ash bed are removed; Using mass concentration subsequently is that 10% the caustic soda aqueous solution cleans said ground layer, with clear water the caustic soda aqueous solution that retains on the said ground layer is washed down at last.
Above-mentioned a kind of building waste recycling technology; It is characterized in that: said ground layer is the floor plates of multi-storey residential buildings; When said foamed concrete is carried out pumping construction, utilize the vertical duct well of said multi-storey residential buildings that said foamed concrete is pumped to the floor of respectively constructing; The pumping outlet of said concrete pumping equipment and foamed concrete shotcrete pipe join, and said foamed concrete shotcrete pipe is the high abrasion sand blast hose of diameter of phi 51mm～Φ 64mm.
Above-mentioned a kind of building waste recycling technology is characterized in that: said foamed concrete carried out before the pumping construction, and brushing one deck cement sand bed on said ground layer earlier, and the wc of used sand-cement slurry is 0.4～0.5; Before said cement sand bed brushed, sprinkle water moistening to said ground layer earlier; Be provided with the lattice seam in the said foamed concrete bed course that construction is accomplished.
The present invention compared with prior art has the following advantages:
1, simple, the reasonable in design and realization convenience of method steps.
2, in time waste concrete, waste mortar and deposed brick slag are carried out categorised collection at construction site; It is little not only to take up room; And the input manpower and materials are few, and the workmen just can accomplish the categorised collection process of waste concrete, waste mortar and deposed brick slag synchronously in construction process.
3, in waste concrete, waste mortar and the deposed brick slag categorised collection process; Just the large-scale mobile construction waste crushing equipment that is laid in construction site into the present invention be can directly throw in and fragmentation and screening carried out; And just can directly drop into preparation cement slurry in the cement slurry stirrer that is laid in construction site after broken and the screening; Then be used further to prepare foamed concrete, realize the regenerated using of waste concrete, waste mortar and deposed brick slag, above-mentioned regenerated using process is all in the disposable completion of construction site; And formed pipelining, operate very simple and easy.
4, through the scene waste concrete, waste mortar and deposed brick slag are carried out categorised collection and regenerated using after; Not only reduced the site operation working space; And man power and material's costs of in a large number building wastes such as waste concrete, waste mortar and deposed brick slag being cleared up, transported and handle have been practiced thrift; Can direct at the construction field (site) Ei be handled and utilization again, remarkable in economical benefits by waste concrete, waste mortar and the deposed brick slag collected simultaneously.
5, it is simple to adopt waste concrete, waste mortar and deposed brick slag to prepare the preparation technology of foamed concrete; Be prepared into the foam diluent with mechanical means; The foam diluent is joined in the cement slurry that the coarse aggregate that produces by cement, water and by waste concrete, waste mortar and deposed brick slag regeneration back and fine aggregate form, preparation forms foamed concrete again, and the foamed concrete that will prepare completion afterwards again is pumped to the construction operation face; It is simple and direct and cheap to construct; Meet current building energy conservation requirement, substitute, have good popularization value with the traditional technology of materials such as polystyrene foamed plastics, aluminium foil reflectance coating as ground spoke thermal insulation layer.
6, the construct foamed concrete bed course quality accomplished of the simple and institute of the construction procedure of prepared completion foamed concrete is good, need just can effectively guarantee the construction quality of foamed concrete bed course through basic unit being handled and is provided with the sand-cement slurry key coat before the construction.Simultaneously, the base treatment method that is adopted is simple, can carry out fast basic unit, effectively clear up.After the sand-cement slurry key coat construction, need not to carry out levelling, just direct pumping foamed concrete, constructing operation is very easy.
7, adopt waste concrete, waste mortar and the prepared foamed concrete excellent property of deposed brick slag, not only lightweight, and thermal stability is high, and there is not thermolysis in heat-resisting reaching more than 500 ℃, thereby longer service life, can not cause insulation failure; Simultaneously, thermal and insulating performance is good, owing to contain the said minuscule hole of a large amount of sealings in the foamed concrete, therefore has good thermal property, and this is that normal concrete is not available, and its density rating is usually at 700kg/m
3～900kg/m
3Between the scope, thermal conductivity is between 0.08W/Mk～0.16W/Mk, and thermal resistance is about 10～20 times of normal concrete, has good energy-saving effect; And supporting capacity is strong, 7 days ultimate compression strength>=2.0MPa, 28 days ultimate compression strength>=3.5MPa; In addition, sound insulation, fire performance are good, because foamed concrete is that the independently porous material of bubble structure is contained in inside, belong to novel porous class sound-absorbing material, average sound absorption coefficient a
RcBe 0.8～1.4 (usually average sound absorption coefficient a
Rc>=0.2 material is called sound-absorbing material), belong to strong sound-absorbing material, sound-proofing properties is 5 times of normal concrete, so it also is a kind of good sound-proof material; Meanwhile,, can not burn, thereby have good resistivity against fire, in buildings, use, can improve the fire resistance of buildings because foamed concrete is inorganic materials; And because foamed concrete has the intensive dispersiveness, can form evenly independently foaming, foaming has tough and independently foaming connection, and specific absorption is in 25%, and specific absorption is low, so possess good protection against the tide, anti-permeability performance; Combine tack good between foamed concrete and the earth construction layer in addition, avoided the employing polystyrene foamed plastics as the hot insulating layer material of ground spoke behind life-time service, because material deformation causes common quality defects such as the flooring surface layer subsides, hollowing, crack.To sum up; The foamed concrete that the present invention adopts is with mechanical means the foaming agent aqueous solution to be prepared into existing high stability; The foam capsule of extremely strong steric strain and tough stretching property is arranged again, again the foam capsule is joined in the cement slurry, through mixing a kind of porous material that stirs, builds moulding.Contain a large amount of blind holes hole in the foamed concrete; Make it have good workability; Be convenient to high-rise pumping construction; The foams plastic material complicacy of need repeatedly pasting, construct during phenomenons, construction such as efficiently solve that the density that polystyrene foamed plastics that present high-rise residential building ground spoke heat heating bed course lagging material adopted exists is low, yielding, regular meeting causes be delivered for use in building subsiding appears in the back flooring, crack, pipeline break, indoor floor seepage; Various problems such as cost is high, the plastic foam long-time heating is prone to decompose the generation toxic and harmful, and room air is contaminated.
8, adopt the prepared foamed concrete environmental protection of waste concrete, waste mortar and deposed brick slag, nontoxic; The foamed concrete desired raw material is cement and whipping agent; The whipping agent pH value is near neutral; Do not contain volatile injurant matter such as benzene, formaldehyde, thereby avoided environmental pollution and hidden fire-fighting danger, help indoor environment.And polystyrene foamed plastics can discharge the PS toxic gas because of thermolysis.Therefore, use foamed concrete than using polystyrene foamed plastics to have more the feature of environmental protection.
9, operating efficiency height and construction quality are good, and before the construction, building flooring basic unit need not levelling, can directly construct, and can realize that disposable integral builds moulding, shortcomings such as the operation that overcomes traditional work is many, long in time limit, repair rate height.The preparation of foamed concrete is used cement foamed machine and can be realized automated job, through parameter is set on equipment; Automatically accomplish by computer control; Simple to operation, easy to control the quality, can realize the remote conveying of pumping vertical height 200m, every mechanical one-shift workload is 150～300 cubic metres.
In sum; Process step of the present invention is simple, input cost is low, simple and workable, can effectively re-use waste concrete, waste mortar and deposed brick slag, remarkable in economical benefits; And the foamed concrete material good heat insulating of being produced can effectively solve building waste and arbitrarily abandon multiple practical problemss such as stacking land occupation, the wasting of resources are serious, environmental pollution is big.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Embodiment
A kind of building waste recycling technology as shown in Figure 1 may further comprise the steps:
Step 1, waste concrete, waste mortar and deposed brick slag are collected: manual work is collected waste concrete, waste mortar and deposed brick slag that construction site produced.
In the present embodiment, the waste concrete described in the step 1 is the waste and old concrete piece that produces behind the waste and old concrete piece that produces behind the concrete clout after the broken concrete, the concrete placement that produce in the broken concrete that produces in the concrete transportation, the concrete pouring construction process are accomplished, the temporary concrete structural demolition that construction site is built or the waste and old concrete structural demolition that construction site is existed;
Wherein, the broken concrete that produces in the concrete transportation comprises because of shedding, leak the broken concrete that material, flash or cleaning produce; The broken concrete that produces in the concrete pouring construction process comprises because of shedding, leak material, flash, cleaning or dismounting builds the broken concrete that forming panel produces.
In the present embodiment, the temporary concrete structure be included in build in the concrete road surface, construction process of the interim walking of confession workmen that construction site lays and supply provisional concrete construction platform that the workmen uses, supply concrete support structure that heavy construction equipment installs temporarily etc.
The waste and old mortar piece that produces behind the mortar heals that said waste mortar is the mortar fragment that produces in ash, the light cellular partition board construction process of landing of producing in the mortar fragment that produces in the sand-cement slurry transportation, the masonry of cement mortar plastering construction, the masonry of cement mortar plastering construction is accomplished, the temporary building structural demolition that construction site is built and the waste and old building structure that construction site exists removed the waste and old mortar piece that the back produces;
Wherein, the mortar fragment that produces in the sand-cement slurry transportation comprises because of shedding, leak the mortar fragment that material, flash or cleaning produce.
In the present embodiment, the temporary building structure of removing the waste and old mortar piece of back generation is at the interim brickwork construction of building of construction site, is provided with the interim constructing structure of coat of plaster etc.The waste and old building structure of removing the waste and old mortar piece of back generation comprises waste and old brickwork construction, waste and old coat of plaster etc.
Said deposed brick slag is that the useless fragment of brick that the back produces is removed in the waste and old building structure that exists because of the temporary building structure of cutting the queen closer that produces because of life-time service on the queen closer of cutting formation, the brick pavement and construction site being built and construction site in the damaged fragment of brick collected in the process of transportation and depositing, the building construction process.
In the present embodiment, the temporary building structure and the waste and old building structure of removing the useless fragment of brick of back generation are brickwork construction.
Step 2, broken and screening: adopt disintegrating apparatus that waste concrete collected in the step 1, waste mortar and deposed brick slag are carried out fragmentation; And the material after the fragmentation sieved, the regenerated coarse aggregate and the particle diameter that obtain particle diameter and be 1cm～2.5cm are the recycled fine aggregate of 2mm～5mm.
In the present embodiment, adopt fixed Crushing Station of building waste or building waste Movable Crushing Station, waste concrete collected in the step 1, waste mortar and deposed brick slag are carried out fragmentation and screening.
Step 3, foamed concrete preparation, its preparation process is following:
Step 301, cement slurry preparation: after adopting concrete batch plant that cement, water and regenerated coarse aggregate that step 2 obtained and recycled fine aggregate are evenly stirred, obtain cement slurry; The weight ratio of cement, water, regenerated coarse aggregate and recycled fine aggregate is 280 ︰, 129～170 ︰, 300～320 ︰ 240～260 in the said cement slurry.
When reality evenly stirred said cement slurry, stirring velocity was not limit, and only need said cement slurry be stirred gets final product.In the present embodiment, the stirring velocity of said concrete batch plant is 20r/min～30r/min, and churning time is 60s～90s.
In the present embodiment, said cement is above ordinary Portland cement, Portland blast or Portland fly of P.O.32.5.
Step 302, foam diluent are added: will be by whipping agent and water by weight the foam diluent that the ratio that is 1 ︰ 33～38 is uniformly mixed to form, and be added into described in the step 301 in the cement slurry and stir, make foamed concrete.
In the obtained foam diluent, the weight ratio described in said whipping agent and the step 301 between the cement is 1.8～2.5 ︰ 280 in this step.
The wc of prepared foamed concrete is 0.80～0.82, and wherein wc is the ratio of the weight of water used in the prepared foamed concrete and cement.
In the present embodiment, used whipping agent is a compound type concrete foaming agent, and the foam expansion of this compound type concrete foaming agent＞45; Gas release＞the 800ml/g of unit; Foaming height＞400mm, the pH value is 8.5～9.5, the 1h bleeding quantity is＜20ml; 1h depression distance＜2mm, density is 1.15 ± 0.5kg/m
3
During actual the use, whipping agent described in the step 302 is that the commercially available concrete of other type is used whipping agent, like the vegetalitas cement blowing agent.
Prepare the water that said foamed concrete uses and meet " concrete water standard " (JGJ 63) regulation, the water of forbidding pH value to show acidic substance mixes to be sent out in the foaming agent, in order to avoid produce chemical reaction, the foaming effect of foaming agent is sent out in influence.
In addition; Carry out cement slurry in the step 301 when preparing; Also need in prepared cement slurry, to add pumping agent and concrete shrinkage shim; The weight ratio of being added between pumping agent and the cement is 1～1.5 ︰ 280, and the weight ratio of being added between concrete shrinkage shim and the cement is 3～7 ︰ 280.Wherein, add pumping agent purpose be in order to increase the pumpability of foamed concrete, to improve concrete denseness, avoiding segregation.The staple of said concrete shrinkage shim is CaO-Al
2O
3-CaSO
4, can effectively improve the crack resistance of foamed concrete.
In the present embodiment, said pumping agent is preferably the efficient pumping agent of polycarboxylate.Said concrete shrinkage shim is preferably the UEA cement expansive material.
In the present embodiment, after cement slurry stirred described in the step 301, the HPP of the cement foamed machine through being laid in construction site was sent into said cement slurry in the high-pressure delivery pipe of said cement foamed machine; Foam diluent described in the step 302 is delivered in the foaming tube of said cement foamed machine, and the corresponding foam capsule that is blow molded into diameter 0.5mm～2mm; Afterwards, said foam capsule is sent into through transfer lime and is carried out thorough mixing in the said high-pressure delivery pipe, forms foamed concrete.
That is to say, in the present embodiment, adopt said cement foamed machine to accomplish the uniform mixing process of uniform mixing and the foam diluent and the cement slurry of said foam diluent.And adopt in the micro pump of said cement foamed machine when whipping agent and water carried out uniform mixing, uniform mixing speed is 60r/min～120r/min, the uniform mixing time is 60s～90s.
Correspondingly, the unit weight of prepared foamed concrete is 700kg/m
3～900kg/m
3, 7 days ultimate compression strength>=6.0MPa, 28 days ultimate compression strength>=30MPa, thermal conductivity≤0.16W/Mk.And prepared foamed concrete is the foamed concrete below the C25.The unit weight of said foamed concrete is big more, and ultimate compression strength is bigger and its thermal conductivity is big more.
Actual when said foamed concrete is prepared, described in the step 301 in the cement slurry weight ratio of cement, water, regenerated coarse aggregate and recycled fine aggregate be 280 ︰, 145～160 ︰, 300～320 ︰ 240～260; The weight ratio of whipping agent and water is 1 ︰ 35～36 in the diluent of foam described in the step 302, and the weight ratio between the cement described in said whipping agent and the step 301 is 2～2.2 ︰ 280.
In the present embodiment, described in the step 301 in the cement slurry weight ratio of cement, water, regenerated coarse aggregate and recycled fine aggregate be 280 ︰, 145 ︰, 300 ︰ 240; The weight ratio of whipping agent and water is 1 ︰ 35 in the diluent of foam described in the step 302, and the weight ratio between the cement described in said whipping agent and the step 301 is 2 ︰ 280.In the actual use; Can be according to concrete needs, the weight ratio between the cement described in the weight ratio of whipping agent and water in the weight ratio of cement, water, regenerated coarse aggregate and recycled fine aggregate in the said cement slurry, the said foam diluent and said whipping agent and the step 301 is adjusted accordingly.Specifically be proportioning, the proportioning of foam diluent and the blending ratio of foam diluent and cement slurry of confirming cement slurry according to the thermal conductivity and the ultimate compression strength of need construction thermal insulation layers (being the foamed concrete bed course); Simultaneously, also should possess the upper flow regime performance that satisfies the pumping requirement.
In the present embodiment, during practice of construction, the said concrete batch plant of step 301 is the cement slurry stirrer, and said cement slurry stirrer is laid in construction site.In addition, the said cement foamed machine of uniform mixing process of accomplishing uniform mixing and the foam diluent and the cement slurry of said foam diluent also is laid in construction site, and is laid in said cement slurry stirrer week side.In the actual use, the cement slurry that said cement slurry stirrer stirs is sent in the high-pressure delivery pipe through the HPP of said cement foamed machine; And whipping agent and water are mixed into the foam diluent in the foaming machine micro pump; Then the foam diluent is transported to the foaming tube; Mix with pressurized air, under compressed-air actuated effect, foaming agent solution is blow molded into fully the foam capsule of diameter 0.5mm～2mm through the foaming tube.The foam capsule of preparation moulding gets in the high-pressure delivery pipe of cement foamed machine through transfer lime, and under the high pressure effect, (specifically is that 0.4MPa～1.0MPa) carries out thorough mixing with cement slurry, forms foamed concrete.
When reality prepares foamed concrete, can pre-set each item proportioning parameter, realize, use operation very easy, and the method for use of cement blowing agent be with reference to its specification sheets by foaming machine industry control module controls through the supervisory control desk of cement foamed machine.
During actual the use, said cement foamed machine is a high pressure foaming machine, and the pressure in its high-pressure delivery pipe is 0.4MPa～1.0MPa.
In the present embodiment, the cement foamed machine that is adopted is the cement foamed machine of FC-40 type, and during actual the use, each processing parameter is with reference to the specification sheets of manipulating of the cement foamed machine of FC-40 type.During actual the use, also can adopt the cement foamed machine of other type, accomplish the preparation and the concrete preparation process of said film of said foam diluent.
In the present embodiment, after the preparation of foamed concrete described in the step 302 is accomplished, also need carry out the foamed concrete pumping construction; And when said foamed concrete is carried out pumping construction, adopt concrete pumping equipment that obtained foamed concrete is pumped on the ground layer that need lay spoke thermal recovery heating coil road, ground, and form the foamed concrete bed course that a layer thickness is 3cm～7cm; After treating that institute's pumping foamed concrete solidifies, need are laid ground spoke thermal recovery heating coil road be laid on the said foamed concrete bed course.Said foamed concrete bed course is said thermal insulation layer.
In the present embodiment, said ground layer is the floor plates of multi-storey residential buildings, and said foamed concrete is carried out need carrying out base treatment earlier before the pumping construction; And when carrying out base treatment; Earlier that the cleaning of the dust on the said ground layer is clean; Again grey laitance coating on the said ground layer and ash bed are removed; Using mass concentration subsequently is that 10% the caustic soda aqueous solution cleans said ground layer, with clear water the caustic soda aqueous solution that retains on the said ground layer is washed down at last.
Correspondingly, said construction site is the multistoried housing construction construction site.
In the present embodiment; Said foamed concrete is carried out before the pumping construction; On said ground layer, smear earlier a plurality of ash cakes; A plurality of said ash cakes are even laying, and the spacing between adjacent two the said ash cakes with front and back of the spacing between adjacent two the said ash cakes in the left and right sides is 2m ± 0.2m, and the overhead height of a plurality of said ash cakes is for needing the top absolute altitude of the said foamed concrete bed course of construction.
In the practice of construction process, before a plurality of said ash cakes constructions, sweep only with the bar broom watering back on said ground layer earlier, makes that said ground layer is moistening but do not have ponding.
In the present embodiment, said ash cake is square ash cake, and the length of said square ash cake and width are 5cm.
Simultaneously, treat that a plurality of said ash cakes constructions are accomplished and said foamed concrete is carried out before the pumping construction, brushing one deck cement sand bed on said ground layer earlier, and the wc of used sand-cement slurry is 0.4～0.5.Before said cement sand bed brushed, and it is moistening to sprinkle water, and its wc should be controlled between 0.4～0.5, and the surplus ash cleaning of the cake of will plastering before the brushing is clean, and it is moistening to sprinkle water again.
In the present embodiment, the bed thickness of said cement sand bed is 20mm～30mm.
In the present embodiment, said ground layer is the floor plates of multi-storey residential buildings, when said foamed concrete is carried out pumping construction, utilizes the vertical duct well of said multi-storey residential buildings that said foamed concrete is pumped to the floor of respectively constructing.
In the present embodiment; Accomplish the uniform mixing process of uniform mixing and the foam diluent and the cement slurry of said foam diluent owing to adopt said cement foamed machine; The high-pressure pumping system that then can directly utilize said cement foamed machine to carry, the foamed concrete that preparation is accomplished is pumped to current construction floor.Before the actual pumping; The pumping outlet and the concrete shotcrete pipe of the high-pressure pumping system that said cement foamed machine is carried join; And said foamed concrete shotcrete pipe is the high abrasion sand blast hose of diameter of phi 51mm～Φ 64mm, and through said vertical duct well said foamed concrete shotcrete pipe is connected to current construction floor.
During actual the use, also can adopt other concrete pumping equipment that said foamed concrete is carried out pumping, and the pumping outlet of said concrete pumping equipment and foamed concrete shotcrete pipe join.
In the present embodiment; After being pumped to obtained foamed concrete on the ground layer that need lay spoke thermal recovery heating coil road, ground; Said foamed concrete is the flat-shaped attitude of gravity flow, and the virtual resurfacing thickness of said foamed concrete is 1.1 times～1.2 times of the said foamed concrete bed course bed thickness of need constructing; Before waiting to be pumped to the foamed concrete initial set on the said ground layer, slightly wipe off along the height of said ash cake, just accomplish the pumping construction process of said foamed concrete bed course with darby; Afterwards, the said foamed concrete bed course of pumping construction being accomplished carries out natural curing.
In the actual pumping process, the pumping pressure of said high-pressure pumping system should be all the time and the pumping matched, makes it slowly and reposefully foamed concrete to be transported to current construction floor, and it is broken to reduce foam.That is to say, adopt the low pressure slow motion pumping when building, concrete is slowly flowed out from the foamed concrete shotcrete pipe, avoid bubble too much broken.In the present embodiment, the foamed concrete shotcrete pipe that is adopted is the high abrasion sand blast hose of diameter of phi 51mm, the peak pressure 1.6MPa that it can bear.During actual the use, can be according to actual needs, the size of high abrasion sand blast hose is adjusted accordingly.Said high abrasion sand blast hose is made up of the viton and formulated inner glue layer, steel wire enhancement layer and the corrosion resistant outer glue-line of nano material of high abrasion.
Said foamed concrete bed course is carried out in the natural curing process, after the intensity of treating said foamed concrete bed course reaches people's condition, adopt spraying to keep said foamed concrete mat surface moistening, and the natural curing time must not be less than 3 days.
In the present embodiment, said foamed concrete is carried out all using gobo airtight at the window and the hole in institute construction room before the pumping construction, avoid sunlight direct irradiation foamed concrete mat surface, or draught causes the dehydration of foamed concrete mat surface too fast.
Actually carry out maintenance, said gobo specifically adopts colour bar cloth.
After treating that said foamed concrete bed course intensity reaches people's condition, adopt spraying to keep concrete surface moistening, and the wet curing time must not be less than 3d.Winter construction should be taked the insulation measure, and room temperature keeps more than 5 ℃.In the present embodiment, the water seasoning time is 14 days.
In the present embodiment, be provided with the lattice seam in the said foamed concrete bed course that construction is accomplished.
During practice of construction, when institute construction room laterally or longitudinal size during greater than 4m, the lattice seam must be set.Because the foamed concrete shrinkage coefficient is less than 0.5%, lattice seam width 3mm～5mm gets final product, and the area that the lattice seam is kept somewhere should not be provided with lattice and be sewed with following two kinds of methods greater than 4m * 4m:
First kind, reservation lattice seam: adopt wide PVC bar or the batten of 0.3mm～5mm, before said foamed concrete pumping construction, stick on the flooring structural sheet (being said cement sand bed) with sand-cement slurry.
Second kind, cutting lattice seam: after said foamed concrete bed course intensity reaches people's condition; Directly cut into seam with portable cutters, the attention depth of cut should be avoided the cut wound structural sheet less than thermal insulation layer thickness 5mm; Use the India-rubber strip joint filling afterwards, and stitch with sealing compound pointing lattice.
To sum up, treat that said foamed concrete cushion construction is accomplished after, need are laid spoke thermal recovery heating coil road, ground are laid on the said foamed concrete bed course.
Embodiment 2
In the present embodiment, different with embodiment 1 is: described in the step 301 in the cement slurry weight ratio of cement, water, regenerated coarse aggregate and recycled fine aggregate be 280 ︰, 160 ︰, 320 ︰ 260; The weight ratio of whipping agent and water is 1 ︰ 36 in the diluent of foam described in the step 302, and the weight ratio between the cement described in said whipping agent and the step 301 is 2.2 ︰ 280.
In the present embodiment, all the other process steps are all identical with embodiment 1 with processing parameter.
Embodiment 3
In the present embodiment, different with embodiment 1 is: described in the step 301 in the cement slurry weight ratio of cement, water, regenerated coarse aggregate and recycled fine aggregate be 280 ︰, 150 ︰, 310 ︰ 250; The weight ratio of whipping agent and water is 1 ︰ 35.5 in the diluent of foam described in the step 302, and the weight ratio between the cement described in said whipping agent and the step 301 is 2.1 ︰ 280.
In the present embodiment, all the other process steps are all identical with embodiment 1 with processing parameter.
Embodiment 4
In the present embodiment, different with embodiment 1 is: described in the step 301 in the cement slurry weight ratio of cement, water, regenerated coarse aggregate and recycled fine aggregate be 280 ︰, 129 ︰, 300 ︰ 255; The weight ratio of whipping agent and water is 1 ︰ 33 in the diluent of foam described in the step 302, and the weight ratio between the cement described in said whipping agent and the step 301 is 1.8 ︰ 280.
In the present embodiment, all the other process steps are all identical with embodiment 1 with processing parameter.
Embodiment 5
In the present embodiment, different with embodiment 1 is: described in the step 301 in the cement slurry weight ratio of cement, water, regenerated coarse aggregate and recycled fine aggregate be 280 ︰, 170 ︰, 320 ︰ 260; The weight ratio of whipping agent and water is 1 ︰ 38 in the diluent of foam described in the step 302, and the weight ratio between the cement described in said whipping agent and the step 301 is 2.5 ︰ 280.
In the present embodiment, all the other process steps are all identical with embodiment 1 with processing parameter.
Embodiment 6
In the present embodiment, different with embodiment 1 is: described in the step 301 in the cement slurry weight ratio of cement, water, regenerated coarse aggregate and recycled fine aggregate be 280 ︰, 135 ︰, 300 ︰ 245; The weight ratio of whipping agent and water is 1 ︰ 36 in the diluent of foam described in the step 302, and the weight ratio between the cement described in said whipping agent and the step 301 is 2.3 ︰ 280.
In the present embodiment, all the other process steps are all identical with embodiment 1 with processing parameter.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any restriction, every technical spirit changes any simple modification, change and the equivalent structure that above embodiment did according to the present invention, all still belongs in the protection domain of technical scheme of the present invention.
Claims (10)
1. building waste recycling technology is characterized in that this technology may further comprise the steps:
Step 1, waste concrete, waste mortar and deposed brick slag are collected: manual work is collected waste concrete, waste mortar and deposed brick slag that construction site produced;
Step 2, broken and screening: adopt disintegrating apparatus that waste concrete collected in the step 1, waste mortar and deposed brick slag are carried out fragmentation; And the material after the fragmentation sieved, the regenerated coarse aggregate and the particle diameter that obtain particle diameter and be 1cm～2.5cm are the recycled fine aggregate of 2mm～5mm;
Step 3, foamed concrete preparation, its preparation process is following:
Step 301, cement slurry preparation: after adopting concrete batch plant that cement, water and regenerated coarse aggregate that step 2 obtained and recycled fine aggregate are evenly stirred, obtain cement slurry; The weight ratio of cement, water, regenerated coarse aggregate and recycled fine aggregate is 280 ︰, 129～170 ︰, 300～320 ︰ 240～260 in the said cement slurry;
Step 302, foam diluent are added: will be by whipping agent and water by weight the foam diluent that the ratio that is 1 ︰ 33～38 is uniformly mixed to form, and be added into described in the step 301 in the cement slurry and stir, make foamed concrete; Weight ratio described in said whipping agent and the step 301 between the cement is 1.8～2.5 ︰ 280.
2. according to the described a kind of building waste recycling technology of claim 1, it is characterized in that: the waste concrete described in the step 1 is the waste and old concrete piece that produces behind the waste and old concrete piece that produces behind the concrete clout after the broken concrete, the concrete placement that produce in the broken concrete that produces in the concrete transportation, the concrete pouring construction process are accomplished, the temporary concrete structural demolition that construction site is built or the waste and old concrete structural demolition that construction site is existed;
Wherein, the broken concrete that produces in the concrete transportation comprises because of shedding, leak the broken concrete that material, flash or cleaning produce; The broken concrete that produces in the concrete pouring construction process comprises because of shedding, leak material, flash, cleaning or dismounting builds the broken concrete that forming panel produces;
The waste and old mortar piece that produces behind the mortar heals that said waste mortar is the mortar fragment that produces in ash, the light cellular partition board construction process of landing of producing in the mortar fragment that produces in the sand-cement slurry transportation, the masonry of cement mortar plastering construction, the masonry of cement mortar plastering construction is accomplished, the temporary building structural demolition that construction site is built and the waste and old building structure that construction site exists removed the waste and old mortar piece that the back produces;
Wherein, the mortar fragment that produces in the sand-cement slurry transportation comprises because of shedding, leak the mortar fragment that material, flash or cleaning produce;
Said deposed brick slag is that the useless fragment of brick that the back produces is removed in the waste and old building structure that exists because of the temporary building structure of cutting the queen closer that produces because of life-time service on the queen closer of cutting formation, the brick pavement and construction site being built and construction site in the damaged fragment of brick collected in the process of transportation and depositing, the building construction process.
3. according to claim 1 or 2 described a kind of building waste recycling technologies, it is characterized in that: described in the step 301 in the cement slurry weight ratio of cement, water, regenerated coarse aggregate and recycled fine aggregate be 280 ︰, 145～160 ︰, 300～320 ︰ 240～260; The weight ratio of whipping agent and water is 1 ︰ 35～36 in the diluent of foam described in the step 302, and the weight ratio between the cement described in said whipping agent and the step 301 is 2～2.2 ︰ 280.
4. according to claim 1 or 2 described a kind of building waste recycling technologies, it is characterized in that: whipping agent described in the step 302 is the vegetalitas cement blowing agent; Carry out cement slurry in the step 301 when preparing; Also need in prepared cement slurry, to add pumping agent and concrete shrinkage shim; The weight ratio of being added between pumping agent and the cement is 1～1.5 ︰ 280, and the weight ratio of being added between concrete shrinkage shim and the cement is 3～7 ︰ 280.
5. according to claim 1 or 2 described a kind of building waste recycling technologies; It is characterized in that: after cement slurry stirs described in the step 301; The HPP of the cement foamed machine through being laid in construction site is sent into said cement slurry in the high-pressure delivery pipe of said cement foamed machine; Foam diluent described in the step 302 is delivered in the foaming tube of said cement foamed machine, and the corresponding foam capsule that is blow molded into diameter 0.5mm～2mm; Afterwards, said foam capsule is sent into through transfer lime and is carried out thorough mixing in the said high-pressure delivery pipe, forms foamed concrete.
6. according to claim 1 or 2 described a kind of building waste recycling technologies, it is characterized in that: after the preparation of foamed concrete described in the step 302 is accomplished, also need carry out the foamed concrete pumping construction; And when said foamed concrete is carried out pumping construction, adopt concrete pumping equipment that obtained foamed concrete is pumped on the ground layer that need lay spoke thermal recovery heating coil road, ground, and form the foamed concrete bed course that a layer thickness is 3cm～7cm; After treating that institute's pumping foamed concrete solidifies, need are laid ground spoke thermal recovery heating coil road be laid on the said foamed concrete bed course.
7. according to the described a kind of building waste recycling technology of claim 6; It is characterized in that: said foamed concrete is carried out before the pumping construction; On said ground layer, smear earlier a plurality of ash cakes; A plurality of said ash cakes are even laying, and the spacing between adjacent two the said ash cakes with front and back of the spacing between adjacent two the said ash cakes in the left and right sides is 2m ± 0.2m, and the overhead height of a plurality of said ash cakes is for needing the top absolute altitude of the said foamed concrete bed course of construction; After treating that obtained foamed concrete is pumped on the ground layer that need lay spoke thermal recovery heating coil road, ground, said foamed concrete is the flat-shaped attitude of gravity flow, and the virtual resurfacing thickness of said foamed concrete is 1.1 times～1.2 times of the said foamed concrete bed course bed thickness of need constructing; Before waiting to be pumped to the foamed concrete initial set on the said ground layer, slightly wipe off along the height of said ash cake, just accomplish the pumping construction process of said foamed concrete bed course with darby; Afterwards, the said foamed concrete bed course of pumping construction being accomplished carries out natural curing.
8. according to the described a kind of building waste recycling technology of claim 7, it is characterized in that: said ground layer is the floor plates of multi-storey residential buildings, and said foamed concrete is carried out need carrying out base treatment earlier before the pumping construction; And when carrying out base treatment; Earlier that the cleaning of the dust on the said ground layer is clean; Again grey laitance coating on the said ground layer and ash bed are removed; Using mass concentration subsequently is that 10% the caustic soda aqueous solution cleans said ground layer, with clear water the caustic soda aqueous solution that retains on the said ground layer is washed down at last.
9. according to the described a kind of building waste recycling technology of claim 7; It is characterized in that: said ground layer is the floor plates of multi-storey residential buildings; When said foamed concrete is carried out pumping construction, utilize the vertical duct well of said multi-storey residential buildings that said foamed concrete is pumped to the floor of respectively constructing; The pumping outlet of said concrete pumping equipment and foamed concrete shotcrete pipe join, and said foamed concrete shotcrete pipe is the high abrasion sand blast hose of diameter of phi 51mm～Φ 64mm.
10. according to the described a kind of building waste recycling technology of claim 6; It is characterized in that: said foamed concrete is carried out before the pumping construction; Elder generation's brushing one deck cement sand bed on said ground layer, and the wc of used sand-cement slurry is 0.4～0.5; Before said cement sand bed brushed, sprinkle water moistening to said ground layer earlier; Be provided with the lattice seam in the said foamed concrete bed course that construction is accomplished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210344546XA CN102815964A (en) | 2012-09-17 | 2012-09-17 | Construction waste recycling and reusing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210344546XA CN102815964A (en) | 2012-09-17 | 2012-09-17 | Construction waste recycling and reusing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102815964A true CN102815964A (en) | 2012-12-12 |
Family
ID=47300469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210344546XA Pending CN102815964A (en) | 2012-09-17 | 2012-09-17 | Construction waste recycling and reusing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102815964A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103626414A (en) * | 2013-11-20 | 2014-03-12 | 同济大学 | Multipurpose red aggregate for cement-based color facing mortar, and preparation method and usage of aggregate |
| CN103626415A (en) * | 2013-11-20 | 2014-03-12 | 同济大学 | Multipurpose khaki aggregate for cement-based color facing mortar, and preparation method and usage of aggregate |
| CN103817794A (en) * | 2014-02-28 | 2014-05-28 | 浙江海天建设集团有限公司 | Premixed slurry fluid foam concrete onsite stirring construction method |
| CN103899090A (en) * | 2014-02-28 | 2014-07-02 | 浙江海天建设集团有限公司 | Premixed slurry fluid foam concrete construction technology |
| CN104162933A (en) * | 2013-05-20 | 2014-11-26 | 深圳市科耐乐新材料有限公司 | Automatic production line for manufacturing high-performance decorating plates by using recycled materials |
| CN106986612A (en) * | 2017-03-02 | 2017-07-28 | 天津开发区天地信息技术有限公司 | Engineering soil stone recycling |
| WO2018144862A1 (en) * | 2017-02-02 | 2018-08-09 | Saudi Arabian Oil Company | Lightweight foam concrete |
| CN108585636A (en) * | 2018-03-15 | 2018-09-28 | 广东基业长青节能环保实业有限公司 | a kind of environment-friendly foaming cement and preparation method thereof |
| CN110106769A (en) * | 2019-04-26 | 2019-08-09 | 王胤 | A kind of traffic road bridge construction crusher with joint filling function |
| CN110526630A (en) * | 2019-08-02 | 2019-12-03 | 北京超薪创艺科技有限公司 | A kind of light aggregate concrete and preparation method thereof based on regenerated resources aggregate |
| CN111502276A (en) * | 2020-04-21 | 2020-08-07 | 湖北万源安邦防水保温有限公司 | Environment-friendly waterproof heat-preservation construction method |
| CN113185257A (en) * | 2021-03-31 | 2021-07-30 | 太原理工大学 | Solid waste regeneration foamed ceramic material for heat insulation wall and preparation method thereof |
| CN113429183A (en) * | 2021-07-13 | 2021-09-24 | 上海建工建材科技集团股份有限公司 | High-doping-amount regenerated sand powder-based foam concrete and preparation method thereof |
| CN113530235A (en) * | 2021-07-19 | 2021-10-22 | 屈志斌 | Clean and environment-friendly building construction method |
| CN113775017A (en) * | 2021-07-22 | 2021-12-10 | 长沙理工大学 | Preparation and recycling method of sponge concrete |
| CN114230212A (en) * | 2021-12-23 | 2022-03-25 | 中建生态环境集团有限公司 | Building slag powder and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1990129A (en) * | 2005-12-28 | 2007-07-04 | 罗以杰 | A method for comprehensive treatment of construction refuse |
| CN101255044A (en) * | 2008-04-08 | 2008-09-03 | 昆明理工大学 | Method for preparing regenerative road material by using waste concrete and construction method thereof |
| CN101863644A (en) * | 2010-05-25 | 2010-10-20 | 中国建筑材料科学研究总院 | Self-insulation recycled concrete block and manufacturing method thereof |
| CN102060485A (en) * | 2010-12-02 | 2011-05-18 | 济南大学 | Cement concrete, and preparation method and recycling method thereof |
| CN102514098A (en) * | 2011-11-26 | 2012-06-27 | 洛阳师范学院 | Novel foam concrete slurry producing and conveying machine |
-
2012
- 2012-09-17 CN CN201210344546XA patent/CN102815964A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1990129A (en) * | 2005-12-28 | 2007-07-04 | 罗以杰 | A method for comprehensive treatment of construction refuse |
| CN101255044A (en) * | 2008-04-08 | 2008-09-03 | 昆明理工大学 | Method for preparing regenerative road material by using waste concrete and construction method thereof |
| CN101863644A (en) * | 2010-05-25 | 2010-10-20 | 中国建筑材料科学研究总院 | Self-insulation recycled concrete block and manufacturing method thereof |
| CN102060485A (en) * | 2010-12-02 | 2011-05-18 | 济南大学 | Cement concrete, and preparation method and recycling method thereof |
| CN102514098A (en) * | 2011-11-26 | 2012-06-27 | 洛阳师范学院 | Novel foam concrete slurry producing and conveying machine |
Non-Patent Citations (1)
| Title |
|---|
| 曾亮等: "泡沫混凝土的研究进展与展望", 《上海建材》 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162933A (en) * | 2013-05-20 | 2014-11-26 | 深圳市科耐乐新材料有限公司 | Automatic production line for manufacturing high-performance decorating plates by using recycled materials |
| CN103626414A (en) * | 2013-11-20 | 2014-03-12 | 同济大学 | Multipurpose red aggregate for cement-based color facing mortar, and preparation method and usage of aggregate |
| CN103626415A (en) * | 2013-11-20 | 2014-03-12 | 同济大学 | Multipurpose khaki aggregate for cement-based color facing mortar, and preparation method and usage of aggregate |
| CN103817794A (en) * | 2014-02-28 | 2014-05-28 | 浙江海天建设集团有限公司 | Premixed slurry fluid foam concrete onsite stirring construction method |
| CN103899090A (en) * | 2014-02-28 | 2014-07-02 | 浙江海天建设集团有限公司 | Premixed slurry fluid foam concrete construction technology |
| WO2018144862A1 (en) * | 2017-02-02 | 2018-08-09 | Saudi Arabian Oil Company | Lightweight foam concrete |
| CN106986612A (en) * | 2017-03-02 | 2017-07-28 | 天津开发区天地信息技术有限公司 | Engineering soil stone recycling |
| CN108585636A (en) * | 2018-03-15 | 2018-09-28 | 广东基业长青节能环保实业有限公司 | a kind of environment-friendly foaming cement and preparation method thereof |
| CN110106769A (en) * | 2019-04-26 | 2019-08-09 | 王胤 | A kind of traffic road bridge construction crusher with joint filling function |
| CN110526630A (en) * | 2019-08-02 | 2019-12-03 | 北京超薪创艺科技有限公司 | A kind of light aggregate concrete and preparation method thereof based on regenerated resources aggregate |
| CN111502276A (en) * | 2020-04-21 | 2020-08-07 | 湖北万源安邦防水保温有限公司 | Environment-friendly waterproof heat-preservation construction method |
| CN113185257A (en) * | 2021-03-31 | 2021-07-30 | 太原理工大学 | Solid waste regeneration foamed ceramic material for heat insulation wall and preparation method thereof |
| CN113429183A (en) * | 2021-07-13 | 2021-09-24 | 上海建工建材科技集团股份有限公司 | High-doping-amount regenerated sand powder-based foam concrete and preparation method thereof |
| CN113530235A (en) * | 2021-07-19 | 2021-10-22 | 屈志斌 | Clean and environment-friendly building construction method |
| CN113775017A (en) * | 2021-07-22 | 2021-12-10 | 长沙理工大学 | Preparation and recycling method of sponge concrete |
| CN114230212A (en) * | 2021-12-23 | 2022-03-25 | 中建生态环境集团有限公司 | Building slag powder and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102815964A (en) | Construction waste recycling and reusing process | |
| CN101250910B (en) | Spray coating rigid foam polyurethane water-proof fireproof heat-preserving wall as well as construction method thereof | |
| CN102477797B (en) | A kind of construction method preventing infilled wall crack | |
| CN108275936B (en) | Reclaimed sand powder green concrete and preparation method thereof | |
| CN103938820B (en) | A kind of crystallite foam ceramic thermal insulation decoration composite plate and preparation method thereof | |
| CN100430332C (en) | Thermal insulation material and its preparing process and usage | |
| CN102909783A (en) | Production process of building envelope products | |
| EP0944558A1 (en) | Lightweight, low water content, cementitious compositions and methods for their production and use | |
| CN101844898A (en) | Multifunctional thermal insulation mortar and production method thereof | |
| CN105780976B (en) | Compound concrete shear wall structure and its concreting method | |
| CN111549937B (en) | Environment-friendly, heat-preservation and heat-insulation combined masonry wall structure and construction method thereof | |
| CN102701648B (en) | Foam concrete doped with lightweight foam and production method of foam concrete | |
| CN103556830A (en) | Controllable cast-in-place foam concrete roof construction method | |
| CN103206085A (en) | Construction method for heat-insulation waterproofing system of roof comprising foam glass plates | |
| CN108252473A (en) | A kind of architectural concrete, assembled combined wall board and preparation method thereof | |
| CN108395276A (en) | A method of preparing high-strength light cast-in-place concrete partition wall using building castoff | |
| CN108238811A (en) | A kind of preparation method of foamed ceramic plates | |
| CN106007668A (en) | Fabricated inorganic heat-insulation composite wallboard and preparation method thereof | |
| CN103899090B (en) | Premixing slurry fluid foam concrete construction technology | |
| CN105201101A (en) | Light aggregate concrete small hollow block building masonry construction method | |
| CN101139194A (en) | Method for preparing foaming concrete lightweight wall material | |
| CN108397212B (en) | Concrete nozzle and use method | |
| CN101434477B (en) | Expansion vitrification micro-sphere heat insulation formwork and production method thereof | |
| CN101492273A (en) | Method for producing foaming concrete dry powder mortar | |
| CN203821745U (en) | Microcrystal foam ceramic thermal insulation decoration composite board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121212 |