CN105130327B - A kind of modification is got angry additive and its large dosage tailing wet slag lightweight concrete - Google Patents
A kind of modification is got angry additive and its large dosage tailing wet slag lightweight concrete Download PDFInfo
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- CN105130327B CN105130327B CN201510383677.2A CN201510383677A CN105130327B CN 105130327 B CN105130327 B CN 105130327B CN 201510383677 A CN201510383677 A CN 201510383677A CN 105130327 B CN105130327 B CN 105130327B
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Abstract
A kind of modification is got angry additive and its large dosage tailing wet slag lightweight concrete, is formed by its component and parts by weight mixture.Including：Modified additive of getting angry, by its component and parts by weight mixture.Including：1.8 parts ± 0.036 part of precipitated calcium carbonate (CaCo3), 1.5 parts ± 0.03 part of calcium lignosulfonate (C20H24CaO10S2), 1.2 parts ± 0.02 part of calcium carbide (CaC2), cornstarch (C6H10O5) n, 0.8 part ± 0.016 part, 1.8 parts ± 0.036 part of sodium aluminate (Ai2Na204), 0.1 part ± 0.002 part of lithium carbonate (Li2CO3), 0.4 part ± 0.008 part of sodium bicarbonate (NaHCO3), 3,0.2 parts ± 0.004 part of aluminum sulfate [Ai2 (So4)].And the lightweight concrete of got angry using above-mentioned modification additive, by weight percentage mixture, including：Base-material Portland cement 10% 49%, modified additive 0.5% 1% of getting angry, water 27% 50%, discarded tailing wet slag dosage 50% 90%.The present invention, which has, prepares simple, at low cost, easy to maintain, good heat insulating, and Lightness, low bullet damping property, crushing resistance, freeze-thaw resistance, sound-proofing and excellent water resistance reduce raw material and product synthesis cost.
Description
Technical field
The present invention relates to C04 classes, a kind of modification is got angry additive and wet with large dosage discarded tailing prepared by the additive
The lightweight concrete technical field of slag.
Background technology
In order to reduce cost, improve environment, energy saving, people largely add using foam cement or in cement straw
The waste-material-preparings light concrete construction material such as stalk, sawdust, slag.Since the additive used is different or is added in cement
The waste materials such as slag it is different, the quality of made light concrete construction material is also different.
Through retrieving " foam cement " keyword, 400 is multinomial altogether, and retrieval " lightweight concrete " keyword amounts to 1217.
The case identical with the technology of the present invention is not found.
Existing lightweight concrete, waste material flyash, slag etc. extremely stringent to raw materials and equipment requirement
Additive amount few (15%--20% or so) and requirement are dehydrated, dry, the fineness that ball milling is worked into more than 200 mesh could be used,
Special-purpose foaming mixing plant is required during production, the flow complexity when operate equipment can not direct large dosage (50%--90%)
Using unprocessed discarded tailing wet slag, raw material and product is caused to integrate of high cost, equipment investment money since the useless amount of profit is low
The shortcomings of more production technologies of gold are complicated.
Invention content
The purpose of the present invention is to provide a kind of inorganic mineral alkali modification get angry additive and using the additive prepare
With economize on resources, improve environment, reduce cost, improve product quality and performances lightweight concrete product.It is existing to solve
Additive to producing lightweight concrete, it is necessary to restricted with special equipment, the harsh of Complicated Flow, overcome time and former material material strip
Part limitation etc..So as to provide with Portland cement, large dosage discarded tailing wet slag, make the technology of lightweight concrete.
The present invention adopts the following technical scheme that：
Modified additive of getting angry, by its component and parts by weight mixture.Including：1.8 parts of precipitated calcium carbonate (CaCo3) ±
0.036 part, 1.5 parts ± 0.03 part of calcium lignosulfonate (C20H24CaO10S2), 1.2 parts ± 0.02 part of calcium carbide (CaC2), jade
Rice starch (C6H10O5) n, 0.8 part ± 0.016 part, 1.8 parts ± 0.036 part of sodium aluminate (Ai2Na204), lithium carbonate (Li2CO3)
0.1 part ± 0.002 part, 0.4 part ± 0.008 part of sodium bicarbonate (NaHCO3), 3,0.2 part ± 0.004 of aluminum sulfate [Ai2 (So4)]
Part.
It is got angry additive using above-mentioned modification, prepares Portland cement large dosage discarded tailing wet slag and make lightweight
Concrete.Lightweight concrete composition mixture by weight percentage, including：Base-material Portland cement 10%--49%,
Modified get angry additive 0.5%--1%, water 27%--50%, discarded tailing wet slag dosage 50%--90%.
Additive amount between the modified additive percentage (0.5%--1%) of getting angry of adjustment, to determine that lightweight concrete is close
Degree, unit weight and crushing resistance.
Take modified additive 0.5% of getting angry, water 27%--50%, normal silicate (42.5) cement 10%, tailing wet slag
90%, water is first added according to said ratio, adds Portland cement and discarded tailing wet slag, slag base-material is stirred equal
It is even, it adds in modified additive of getting angry and stirs 2-3 minutes, prepare Portland cement large dosage discarded tailing wet slag unit weight 700-
1200Kg/m3Lightweight concrete.
Modified additive 1% of getting angry is taken, water 27%--50%, normal silicate (42.5) cement 49%, discarded tailing is wet
Slag 50% first adds in water according to said ratio, adds in 42.5 cement 49% of normal silicate, adds in discarded tailing wet slag 50%,
Base-material is stirred evenly the modified additive 1% of getting angry of addition to stir 2-3 minutes, prepares Portland cement large dosage and discards tail
Ore deposit wet slag unit weight 300-600Kg/m3Lightweight concrete.
It is got angry additive using above-mentioned modification, prepares Portland cement large dosage discarded tailing wet slag lightweight coagulation
Soil.It is light concrete plate, frame material, web, partition plate, floor plates, irregular section bar.
Portland cement large dosage discarded tailing wet slag of the present invention modification get angry additive prepare it is simple, into
This is low, easy to maintain, and additive system of getting angry is modified using Portland cement large dosage discarded tailing wet slag of the present invention
Lightweight concrete (foam cement) product done has excellent heat-insulating property, and Lightness, low bullet damping property, resists crushing resistance
Freeze thawing, sound-proofing and excellent water resistance, and operation program step is simple during actual production, and Device-General is uncomplicated to be subtracted
Few fixed assets special equipment investment, is conducive to mechanization and continuously produces in enormous quantities.Product large dosage profit, which gives up to be directly added into, not to be had to
The discarded tailing wet slag that dehydration, drying, ball milling are processed, which reduces production link, reduces energy consumption, saves a large amount of mineral products precious resources, subtracts
Few pollution of the discarded tailing wet slag to environment reduces raw material and product synthesis cost.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, clear and definite, be exemplified below embodiment to the present invention into
One step is described in detail.
It gets angry additive the invention discloses a kind of modification, the Portland cement large dosage that the additive is utilized to prepare
The lightweight concrete that discarded tailing wet slag is formed, component and weight include：
Modified additive of getting angry, by its component and parts by weight mixture.Including：1.8 parts of precipitated calcium carbonate (CaCo3) ±
0.036 part, 1.5 parts ± 0.03 part of calcium lignosulfonate (C20H24CaO10S2), 1.2 parts ± 0.02 part of calcium carbide (CaC2), jade
Rice starch (C6H10O5) n, 0.8 part ± 0.016 part, 1.8 ± 0.036 parts of sodium aluminate (Ai2Na204), lithium carbonate (Li2CO3)
0.1 part ± 0.002 part, 0.4 part ± 0.008 part of sodium bicarbonate (NaHCO3), 3,0.2 part ± 0.004 of aluminum sulfate [Ai2 (So4)]
Part.
In actual production in order to which utility tells that the modification of Portland cement large dosage discarded tailing wet slag is got angry
Additive makes different densities unit weight lightweight concrete (foam cement), and adjustable modification is got angry additive percentage (0.5%--
1%) (density unit weight is in 300-600Kg/m for the additive amount between3Lightweight concrete, modified additive amount of getting angry is on 1% left side
It is right.The high 700--1200Kg/m of density unit weight3The strong lightweight concrete of crushing resistance reduces modification and gets angry additive amount 0.5%
Left and right), change gas forming amount adjustment concrete density unit weight, it is small that modified additive additive amount of getting angry lack gas forming amount, it is on the contrary then greatly.
In order to which the modification of Portland cement large dosage discarded tailing wet slag gets angry what additive was manufactured described in utility
Lightweight concrete (foam cement) product has excellent heat-insulating property and excellent Lightness, crushing resistance, low bullet damping
Property, sound-proofing and water resistance, prepare the modification get angry additive when, above-mentioned each component weight proportion error is no more than 2%.
It is manufactured gently using Portland cement large dosage discarded tailing wet slag modification additive of getting angry to improve
The efficiency of matter concrete (foam cement) product and the excellent properties for ensureing lightweight concrete (foam cement) product, the step
In rapid 1., more than each component separate compiling to 150 mesh.
It gets angry in order to not influence the modification using effect of additive, in the step 2., the modification is got angry addition
The Conservation environment humidity of agent is no more than 65%；The modification get angry additive storage life be no more than 6 months.
A kind of Portland cement large dosage discarded tailing wet slag in the present invention is also provided and makes lightweight concrete (foaming
Cement), lightweight concrete (foam cement) proportioning components by weight percentage, including feeding sequence, Xian Jiashui
27%--50% (since discarded tailing is wet slag, be not dehydrated, dry, under the premise of ball milling wet slag moisture content difference so water
Gray scale is also different), Portland cement, discarded tailing wet slag base-material (appropriate lightweight aggregate can be added) are added in, adds in modified hair
Gas additive 1%--0.5%,.During actual fabrication lightweight concrete (foam cement), each group is separately added into according to said ratio
Point, with ordinary mortar blender and according to ordinary mortar whipping procedure or artificial stirring, each composition is stirred evenly, in mortar
Blender is completed also to complete foaming process (5 minutes or so time) while material stirring, and stirring finishes to obtain lightweight coagulation
Native (foam cement).
Embodiment 1
It takes respectively：1.8 parts of precipitated calcium carbonate, 1.5 parts of calcium lignosulfonate, 1.2 parts of calcium carbide, 0.8 part of cornstarch, aluminium
Sour 1.8 parts of sodium, 0.1 part of lithium carbonate, 0.4 part of sodium bicarbonate, 0.2 part of aluminum sulfate.It is dry-mixed each component separate compiling to 150 mesh
It is preserved after stirring evenly, obtains Portland cement large dosage discarded tailing wet slag and be modified additive of getting angry.
It takes respectively：Modified additive 0.5% of getting angry, water 27%--50% (determine the ratio of mud according to tailing wet slag moisture content
Example), base-material；42.5 cement 10% of normal silicate, tailing wet slag 90%, water is first added according to said ratio, is added common
Portland cement and discarded tailing wet slag stir evenly cement, slag base-material with ordinary mortar blender or by hand stirring,
It adds in modified additive of getting angry to stir 2-3 minutes, completes also to complete foaming process (whole process charging stirring while material stirring
Process was at 5 minutes or so), obtain Portland cement large dosage discarded tailing wet slag unit weight 700-1200Kg/m3Lightweight is mixed
Solidifying soil (foam cement).
Embodiment 2
It takes respectively：1.8 parts of precipitated calcium carbonate, 1.5 parts of calcium lignosulfonate, 1.2 parts of calcium carbide, 0.8 part of cornstarch, aluminium
Sour 1.8 parts of sodium, 0.1 part of lithium carbonate, 1.4 parts of sodium bicarbonate, 0.2 part of aluminum sulfate.It is dry-mixed each component separate compiling to 150 mesh
It is preserved after stirring evenly, obtains Portland cement large dosage discarded tailing wet slag and be modified additive of getting angry.
It takes respectively：Modified additive 1% of getting angry, water 27%--50% (adjust water ash according to discarded tailing wet slag moisture content
Ratio), base-material；42.5 cement 49% of normal silicate, discarded tailing wet slag 50% first add in water according to said ratio, add in
42.5 cement 49% of normal silicate adds in discarded tailing wet slag 50%, stirs with ordinary mortar blender and according to ordinary mortar
Program or by hand stirring are mixed, base-material, which is stirred evenly the modified additive 1% of getting angry of addition, to be stirred 2-3 minutes, completes material
Also foaming process is completed while stirring, about 5 minutes or so overall process time, Portland cement large dosage is obtained and discards
Tailing wet slag unit weight 300-600Kg/m3Lightweight concrete (foam cement).
Portland cement large dosage discarded tailing wet slag of the present invention is modified the physical chemistry for additive of getting angry
It is as follows to react basic principle：It adds in and is modified when water, Portland cement, discarded tailing wet slag base-material are stirred into slurry
Additive of getting angry continues to stir, and the calcium carbide in modified additive component of getting angry meets the two of two electronics that water process is Ca and C
A electronics forms covalent bond, and the OH in water, which combines to draw, to be become C2- and H+ and attract each other generation acetylene bubble and to release heat slightly soluble
Yu Shui, reaction equation are as follows：
CaC+H2O=Ca (OH) 2+C2H
Continuing stirring makes to react calcium lignosulfonate of the bubble of generation in modified additive component of getting angry in water
Portland cement discarded tailing wet slag concrete slurry is evenly distributed under C20H24CaO10S2 bleed peptizaitons
In, sodium bicarbonate NaHCO3 and the double hydrolysis of aluminum sulfate that modification of the present invention at this time is got angry in additive component；Ai2
(SO4) 3+6NaHCO3=3Na2SO4+2Ai (OH) 3 ↓+6CO2 ↑, synergistic effect make Portland cement discarded tailing wet slag
Bubble is finer and closely woven uniformly in concrete slurry, the precipitated calcium carbonate CaCo3 that the modification is got angry in additive component with it is beautiful
Rice starch (C6H10O5) n promotes concrete slurry thickening, and effect bubble suspended dispersed discards tail in Portland cement with easily
In ore deposit wet slag concrete slurry colloid, the bubble that do not collapse of the bubble water-retaining property beginning of strengthening slurry colloid, while utilize calcium carbide CaC2
Meet the exothermic characteristic of water increases partial heat to concrete slurry colloid, makes lithium carbonate Li2CO3, sodium aluminate Ai2Na204, sulfuric acid
Aluminium Ai2 (SO4) 3, sodium bicarbonate NaHCO3 heats accelerate dissolving, alkali metal alkaline earth metal carbonate in modified additive of getting angry,
Sulphate cpd substance and the cohesion of polymerisation of silicate excited inorganic mineral generate the heat of hydration, make portland cement and discarded tail
Si O Si effects in ore deposit wet slag are broken Si O keys, promote the dissolving of SiO2, process is：
-O-Si-O-Si-OH--→Si-O-+-Si-OH
-Si-O-+OH→-O-Si-OH
Alkali cpd also has effect same for Ai-O-Ai keys, in the presence of having Ca2+ or Na+ ,-Si-O-+Ca2+ →-
Si-O-Ca
-Si-O-Ca-+OH-→-Si-O-Ca-OH
As calcium, silicon ion are largely dissolved out from discarded tailing wet slag, calcium in Portland cement paste solution, silicon ion
Concentration is more than the solubility of hydrated calcium silicate, is nucleated C-S-H gels, crystal grow up can PhastGel, inorganic mineral polymerization is solidifying
The hydrated product of glue is low alkalinity gel, and being conducive to raising Portland cement large dosage by depolymerization to polymerization process again discards
The early strong and final set later stage steady growth intensity of tailing wet slag lightweight concrete (foam cement) initial setting time.
By the Portland cement large dosage discarded tailing wet slag lightweight concrete (foam cement) described in embodiment 1-2
For manufacturing light cellular partition board for building, floor plates, 20-35 DEG C of temperature, humidity 70-90% curing kilns conserve 8 hours it is i.e. complete
Into hy-dration reaction shaping and demoulding.With the present embodiment Portland cement large dosage discarded tailing wet slag lightweight concrete (hair
Soaked mud) light cellular partition board for building, floor plates are made, have it is early by force and excellent heat-insulating property, thermal conductivity factor is in 0.06-
It is Lightness between 0.28W/ (m.k)：Dry volume density is 300-1600Kg/m3Between；Low bullet damping property：Add in this composition
The porosity of lightweight concrete (foam cement) produced makes it have low elasticity modulus, so as to have its impact loading
There is good absorption and dispersion；Sound-proofing：This composition makes to contain a large amount of honeycomb in lightweight concrete (foam cement)
Shape independently fine and closely woven bubble, and being evenly distributed, sound absorbing power 0.09-0.19% are 5 times of normal concrete, have effectively every
The function of sound；Crushing resistance：Composition neutral and alkali compound component adds in excitation discarded tailing wet slag activity and normal silicate water
Mud gel copolymer makes the lightweight concrete produced (foam cement) compression strength that can meet various buildings for 0.6-25.0MPa
With light cellular partition board, the requirement of floor plates pressure；Water resistance：Fine and closely woven cellular independent foam is uniformly distributed leakproofness in composition
It is extremely strong, relatively independent closed air bubbles and good globality make the lightweight concrete produced (foam cement) water absorption rate≤
5%, make it have certain waterproof impervious characteristic；Durability：Reasonable add in of modified additive of getting angry makes production in composition
Lightweight concrete (foam cement) the cohesion flexibility enhancing service life gone out reaches 70 years or more.
It should be understood that the application of the present invention is not limited to the above, it for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect range.
Claims (3)
- Additive and its large dosage tailing wet slag lightweight concrete 1. a kind of modification is got angry, it is characterised in that：The lightweight coagulation Native composition mixture by weight percentage, including：Base-material Portland cement 10%--49%, modified additive of getting angry 0.5%--1%, water 27%--50%, discarded tailing wet slag dosage 50%--90%, above-mentioned each component weight proportion error do not surpass Cross 2%；Modified additive of getting angry by its component and parts by weight mixture, including：Precipitated calcium carbonate (CaCO3) 1.8 part ± 0.036 Part, calcium lignosulfonate (C20H24CaO10S2) 1.5 parts ± 0.03 part, calcium carbide (CaC2) 1.2 parts ± 0.02 part, cornstarch (C6H10O5) n, 0.8 part ± 0.016 part, sodium aluminate (Al2Na2O4) 1.8 parts ± 0.036 part, lithium carbonate (Li2CO3) 0.1 part ± 0.002 part, sodium bicarbonate (NaHCO3) 0.4 part ± 0.008 part, aluminum sulfate [Al2(SO4)] 3,0.2 parts ± 0.004 part.
- Additive and its large dosage tailing wet slag lightweight concrete 2. a kind of modification according to claim 1 is got angry, it is special Sign is:Additive amount between the modified additive percentage (0.5%--1%) of getting angry of adjustment, determine lightweight concrete density, Unit weight and crushing resistance.
- Additive and its large dosage tailing wet slag lightweight concrete 3. a kind of modification according to claim 1 is got angry, it is special Sign is:Prepared is light concrete plate, frame material, web, partition plate, floor plates, irregular section bar.
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| RU2688704C1 (en) * | 2018-05-11 | 2019-05-22 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Петербургский государственный университет путей сообщения Императора Александра I" | Complex additive for foam concrete mixture |
| RU2689960C1 (en) * | 2018-05-11 | 2019-05-29 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Петербургский государственный университет путей сообщения Императора Александра I" | Complex additive for foam concrete mixture |
| CN110590312A (en) * | 2019-10-24 | 2019-12-20 | 厦门美益集团有限公司 | Non-sintered brick based on tailing solution and manufacturing process |
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