CN107021708A - A kind of regeneration aggregate pervious concrete and preparation method thereof - Google Patents
A kind of regeneration aggregate pervious concrete and preparation method thereof Download PDFInfo
- Publication number
- CN107021708A CN107021708A CN201710399215.9A CN201710399215A CN107021708A CN 107021708 A CN107021708 A CN 107021708A CN 201710399215 A CN201710399215 A CN 201710399215A CN 107021708 A CN107021708 A CN 107021708A
- Authority
- CN
- China
- Prior art keywords
- parts
- halloysite nanotubes
- water
- regeneration aggregate
- pervious concrete
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention discloses a kind of regeneration aggregate pervious concrete and preparation method thereof, count by weight, the raw material of the concrete includes：5 10 parts of 320 360 parts of cement, 320 360 parts of fine sand, 20 30 parts of ultra-fine microballon, 40 60 parts of flyash, 700 900 parts of regenerated coarse aggregate, 300 400 parts of natural coarse aggregate, 34 parts of water reducer, 100 120 parts of water, 20 30 parts of composite toughening material, 0.02 0.1 parts of toughener of decrement and interior sealing compound.The present invention uses composite toughening material, the halloysite nanotubes and methylcellulose of activeness and quietness excellent performance are combined, so that obtained concrete integrally has good toughness, fatigue resistance and isotropism, compression strength reaches 60 80Mpa within 28 days, and with very high water penetration, it is adapted to sponge city to use, meanwhile, the use of regeneration aggregate substantially increases the environmental-protecting performance in sponge city.
Description
Technical field
The present invention relates to a kind of regeneration aggregate pervious concrete and preparation method thereof, belong to building material field.
Background technology
Using pervious concrete lay urban road and square be realize efficiently " oozing ", " row " important technical.With
Normal concrete is compared, and pervious concrete most outstanding feature is free from fine aggregate, with larger porosity, and moisture can pass through
Hole permeates rapidly.Pervious concrete is prepared using regeneration aggregate, the utilization rate of building waste on the one hand can be improved, promoted solid
The recycling of body discarded object, on the other hand can apply to urban road, square, and rainwater is reduced into underground water, reduce
Municipal drainage pressure, solves urban waterlogging, improves urban ecological environment, improves in the livable level in city, sponge city if adopted
With regeneration aggregate, the feature of environmental protection in city can be greatly improved.But the toughness of regenerative pervious concrete is generally relatively low at present, this master
If due in the preparation of pervious concrete use high intensity concrete proportioning, due to toughness be not enough easy to produce it is stronger
Fragility, particularly big this defect of aggregate regeneration concrete is more obvious, it is therefore desirable to preferable toughening material.
The content of the invention
It is an object of the invention to prior art deficiency, there is provided a kind of regenerated aggregate concrete and preparation method thereof.This hair
The composite toughening material of the concrete activeness and quietness of bright use, the halloysite nanotubes of activeness and quietness excellent performance and methyl are fine
Dimension element is combined so that obtained concrete integrally has good toughness, fatigue resistance and isotropism, 28 days compression strength
60-80Mpa can be reached, and with very high water penetration, is adapted to sponge city and uses, meanwhile, the use of regeneration aggregate is significantly
Improve the environmental-protecting performance in sponge city.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of regeneration aggregate pervious concrete, is counted by weight, and its raw material includes：320-360 parts of cement, fine sand 320-360
Part, ultra-fine microballon 20-30 parts, 40-60 parts of flyash, 700-900 parts of regenerated coarse aggregate, 300-400 parts of natural coarse aggregate, diminishing
3-4 parts of agent, 100-120 parts of water, 20-30 parts of composite toughening material, decrement 0.02-0.1 parts of toughener and interior sealing compound 5-10 parts.
Described decrement toughener is the mixture of methyldiethoxysilane and graphene oxide, and its preparation method is：
Methyldiethoxysilane and graphene oxide are pressed 1:0.5 mass ratio mixing, forms decrement toughener.
Described water reducer is naphthalene series high-efficiency water-reducing agent, and its water-reducing rate is 18-24%.
The ultra-fine microballon is the hollow glass micropearl sorted out from flyash, and in light gray powder, density is
2.49g/cm3, specific surface area 1200m2/kg。
The fine sand is river sand, and its modulus of fineness is 2.5-3.5, and bulk density is 1500-1800kg/m3。
The preparation method of the regenerated coarse aggregate is：Waste and old concrete is crushed, sorted, sieved, cleaned, done
It is dry to obtain waste and old concrete regeneration aggregate, again waste and old concrete regeneration aggregate sieve obtaining diameter 10mm-15mm's
Waste and old concrete regenerated coarse aggregate.
Described composite toughening material is a kind of composite available for concrete activeness and quietness, and its preparation method is：
After the activated processing of halloysite nanotubes, reacted with thionyl chloride, the surface carboxyl groups of halloysite nanotubes are converted into acyl chlorides
After functional group, and difunctional organic compound reaction, then reacted with Cyanuric Chloride, obtain surface and there is active chloride triazine ring
Halloysite nanotubes, finally prepared with methylcellulose by nucleophilic substitution；In the composite toughening material, angstrom
The mass ratio of Lip river stone nanotube and methylcellulose is 1:0.1-0.5.
The preparation method of described composite toughening material, specifically includes following steps：
（1）By the halloysite nanotubes of activated processing（6-30 kg）And thionyl chloride（10-60 kg）In organic solvent P（50-
230 L）Middle mixing, is stirred after 6-15 h at 40-55 DEG C, in 70-80 in 40 kHz, 200 KW supersonic wave cleaning machine
Ultrasound 10-16 h at DEG C, then centrifuge 30-40 min with 4000-5000 rpm rotating speed, separate solid and through organic solvent Q
After cleaning, then the vacuum drying 30-50 h at 25-35 DEG C；
（2）Take step（1）Handle obtained halloysite nanotubes（5-30 kg）, difunctional organic compound（1-8 kg）With
Triethylamine（1-6 L）In organic solvent P（50-220 L）Middle mixing, is stirred after 5-15 h at 50-60 DEG C, in nitrogen protection
Under, in 20 kHz, 150 KW supersonic wave cleaning machine in after ultrasonic reaction 6-10 h at 70-85 DEG C, remove triethylamine under reduced pressure
With organic solvent P, then after blended solvent R is cleaned, 24-48 h are dried in vacuo at 10-20 DEG C；
（3）Take step（2）Handle obtained halloysite nanotubes（5-20 kg）And Cyanuric Chloride（0.5-5 kg）In tetrahydrofuran
（60-230 L）Middle mixing, stirs 12-24 h, in 0-10 in 40 kHz, 200 KW supersonic wave cleaning machine at 0-10 DEG C
It is clean through tetrahydrofuran at DEG C after ultrasound 3-8 h, then at 0-10 DEG C after reaction 24-72 h, it is dried in vacuo at 10-15 DEG C
24-56 h；
（4）Take step（3）Handle obtained halloysite nanotubes（5-20 kg）In N, N '-dimethyl formamide（50-200 L）
After middle dissolving, it is added to and is dissolved with methylcellulose（1-5 kg）N, N '-dimethyl formamide solution（10-50 L ）In,
5-10 h are stirred at 10-20 DEG C, in ultrasound 1-5 h at 10-20 DEG C in 40 kHz, 300 KW supersonic wave cleaning machine, in nitrogen
It is warming up under gas shielded after 40-60 DEG C, isothermal reaction 36-56 h, then is warming up to 80-95 DEG C, isothermal reaction 24-48h, decompression steaming
Except solvent, after being eluted with water, it is dried in vacuo at 40 DEG C after 24-48 h, obtains the composite toughening material.
Organic solvent P in above-mentioned steps is one kind in toluene, 1-METHYLPYRROLIDONE and N, N '-dimethyl acetamide
Or it is several；Organic solvent Q is anhydrous propanone or carbon tetrachloride；The mixed solvent R is made up of ethanol, acetone and water, wherein second
The volume ratio of alcohol, acetone and water is 2:2:6.
Above-mentioned steps（2）In difunctional organic compound be 1,3- propane diamine, ethylenediamine and l, 6- hexamethylene diamine in
It is a kind of.
Above-mentioned steps（4）In methylcellulose viscosity average molecular weigh be 3000-20000, substitution value is 0.5-2.0.
Above-mentioned steps（1）Described in halloysite nanotubes activation process step：
（A）Halloysite nanotubes are taken, is handled through mechanical crushing and uses 350 mesh sieves stand-by after selecting；
（B）In two L ball grinders of identical 15（Nylon tank）In each stainless steel ball for loading 60 a diameter of 5 mm and 50
A diameter of 10 mm stainless steel ball, is then respectively adding through step（A）The kg of halloysite nanotubes 6 after processing, then drip respectively
Plus 600 ml absolute ethyl alcohols, and sealed with nylon lid；Two ball grinders are symmetrically put into planetary ball mill, are in rotating speed
Under conditions of 350 rpm and every 30 minutes automatic conversion direction of rotation after ball milling 40-56 h, average length is obtained for 200-230
Nm chopped halloysite nanotubes；
（C）Take step（B）The halloysite nanotubes after handling that are chopped are added to the water that pH is the polysorbas20 that 8, concentration is 15 wt%
Ultrasonic 24 h in solution, filtering is stand-by after 30 h in being dried in vacuo at 68-70 DEG C after being eluted with water.
Described halloysite nanotubes are commercially available prod, its main specifications：Character：White powder；Composition：SiO2：58.1、
Al2O3：41.02、TiO2：0.17、Fe2O3：0.38、P2O5：0.16；Bore：15-22 nm；Pipe external diameter：40-70 nm；It is long
Degree：<1.5 μm；Specific surface area：53.4 m2/g；Density：2.5-2.6g/cm3。
Described polysorbas20 is commercially available, its main specifications：Character：Pale yellow viscous liquid；Active matter：98-99%；Acid number
(KOHmg/g)：≤1.0；Hydroxyl value (KOHmg/g)：80-108；HLB value：16.7；Saponification number (KOHmg/g)：40-50；Moisture content
(%)：≤1.0.
The preparation process of regeneration aggregate pervious concrete as described above is as follows：
1）By cement, flyash, fine sand, ultra-fine microballon, regenerated coarse aggregate, natural coarse aggregate, interior sealing compound, composite toughening material
Material pours into 30~60s of dry mixing in concrete mixer；
2）Water, water reducer and decrement toughener are added, continues 60~120s of mix, obtains the permeable coagulation of the regeneration aggregate
Soil.
The composite for the concrete activeness and quietness that the present invention is used, is by the galapectite nanometer of activeness and quietness excellent performance
Pipe and methylcellulose are combined, and by multi-step surface covalent reaction, are formd a kind of unique compound system, are prepared
Composite can be fully dispersed in concrete, effectively plays the effect of material coordination plasticizing, concrete is integrally had good
Good toughness, fatigue resistance and isotropism, is a kind of high performance concrete activeness and quietness composite, concrete is integrally had
There are good toughness, fatigue resistance and isotropism, be a kind of high performance concrete toughness reinforcing added material.Composite toughening is added
The toughness of regenerated aggregate concrete, and 28 days compression strength of the concrete prepared can reach 60-80Mpa, can obtain
High-strength and high-ductility regeneration aggregate pervious concrete, and with very high water penetration so that the regeneration aggregate pervious concrete of preparation
It is adapted to sponge city to use, meanwhile, the use of regeneration aggregate substantially increases the environmental-protecting performance in sponge city.
The beneficial effects of the present invention are：
（1）The composite toughening material added in concrete prepared by the present invention is environmentally friendly, has in conventional organic solvent
There is good dissolubility, there is good dispersiveness in water；The preparation condition of the composite toughening material is readily satisfied, and raw material
Abundance, cost is relatively low；
（2）The composite toughening material that the present invention is added, by the halloysite nanotubes and Methyl cellulose of activeness and quietness excellent performance
Element is combined, by multi-step surface covalent reaction, is formd a kind of unique compound system, can fully be divided in concrete
Dissipate, effectively play the effect of material coordination plasticizing, make concrete that integrally there is good toughness, fatigue resistance and isotropism,
It is a kind of high performance concrete activeness and quietness composite；
（3）Concrete produced by the present invention integrally has good toughness, fatigue resistance and isotropism, and compression strength can within 28 days
To reach 60-80Mpa, and with very high water penetration, it is adapted to sponge city and uses, meanwhile, the use of regeneration aggregate is carried significantly
The high environmental-protecting performance in sponge city.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described, but the present invention is not limited only to these embodiments.
Embodiment 1
A kind of regeneration aggregate pervious concrete, is counted by weight, and its raw material includes 320 parts of cement, 320 parts of fine sand, superfine
20 parts of pearl, 40 parts of flyash, 700 parts of regenerated coarse aggregate, 300 parts of natural coarse aggregate, 3 parts of water reducer, 100 parts of water, composite toughening
20 parts of material, 0.02 part of toughener of decrement, 5 parts of interior sealing compound.
Described decrement toughener is the mixture of methyldiethoxysilane and graphene oxide, and its preparation method is：
Methyldiethoxysilane and graphene oxide are pressed 1:0.5 mass ratio mixing, forms decrement toughener.
Described water reducer is naphthalene series high-efficiency water-reducing agent, and its water-reducing rate is 18%.
The ultra-fine microballon is the hollow glass micropearl sorted out from flyash, and in light gray powder, density is
2.49g/cm3, specific surface area 1200m2/kg。
The fine sand is river sand, and its modulus of fineness is 2.5, and bulk density is 1500kg/m3。
The preparation method of the regenerated coarse aggregate is：Waste and old concrete is crushed, sorted, sieved, cleaned, done
It is dry to obtain waste and old concrete regeneration aggregate, again waste and old concrete regeneration aggregate sieve obtaining diameter 10mm-15mm's
Waste and old concrete regenerated coarse aggregate.
Described composite toughening material is a kind of composite available for concrete activeness and quietness, and its preparation method is：
After the activated processing of halloysite nanotubes, reacted with thionyl chloride, the surface carboxyl groups of halloysite nanotubes are converted into acyl chlorides
After functional group, and difunctional organic compound reaction, then reacted with Cyanuric Chloride, obtain surface and there is active chloride triazine ring
Halloysite nanotubes, finally prepared with methylcellulose by nucleophilic substitution；Specifically include following steps：
（1）By the halloysite nanotubes of activated processing（6 kg）And thionyl chloride（10 kg）In toluene（50 L）Middle mixing,
Stirred at 40 DEG C after 15 h, in ultrasonic 16 h at 70 DEG C in 40 kHz, 200 KW supersonic wave cleaning machine, then with 4000
Rpm rotating speed centrifuges 40 min, after separating solid and being cleaned through anhydrous propanone, then is dried in vacuo at 25 DEG C 50 h；
（2）Take step（1）Handle obtained halloysite nanotubes（5 kg）, 1,3- propane diamine（1 kg）And triethylamine（1 L）
Toluene（50 L）Middle mixing, is stirred at 50 DEG C after 15 h, under nitrogen protection, in 20 kHz, 150 KW ultrasonic wave cleaning
In after the h of ultrasonic reaction 10 at 70 DEG C, removing triethylamine and toluene, then blended solvent R under reduced pressure in machine（By ethanol, acetone and
Water is constituted, and wherein the volume ratio of ethanol, acetone and water is 2:2:6）After cleaning, 48 h are dried in vacuo at 10 DEG C；
（3）Take step（2）Handle obtained halloysite nanotubes（5 kg）And Cyanuric Chloride（0.5 kg）In tetrahydrofuran（60
L）Middle mixing, stirs 24 h at 0 DEG C, in after ultrasonic 8 h at 0 DEG C in 40 kHz, 200 KW supersonic wave cleaning machine, then
Reacted at 0 DEG C after 72 h, cleaned through tetrahydrofuran, 56 h are dried in vacuo at 10 DEG C；
（4）Take step（3）Handle obtained halloysite nanotubes（5 kg）In N, N '-dimethyl formamide（50 L）Middle dissolving
Afterwards, it is added to and is dissolved with methylcellulose（1 kg, viscosity average molecular weigh is 3000, and substitution value is 0.5）N, N '-dimethyl formyl
Amine aqueous solution（10 L ）In, 10 h are stirred at 10 DEG C, in ultrasound 5 at 10 DEG C in 40 kHz, 300 KW supersonic wave cleaning machine
H, is warming up to after 40 DEG C, the h of isothermal reaction 56 under nitrogen protection, then is warming up to 80 DEG C, and isothermal reaction 48h is removed under reduced pressure molten
Agent, after being eluted with water, is dried in vacuo after 24 h at 40 DEG C, obtains the composite toughening material.
Above-mentioned steps（1）Described in halloysite nanotubes activation process step：
（A）Halloysite nanotubes are taken, is handled through mechanical crushing and uses 350 mesh sieves stand-by after selecting；
（B）In two L ball grinders of identical 15（Nylon tank）In each stainless steel ball for loading 60 a diameter of 5 mm and 50
A diameter of 10 mm stainless steel ball, is then respectively adding through step（A）The kg of halloysite nanotubes 6 after processing, then drip respectively
Plus 600 ml absolute ethyl alcohols, and sealed with nylon lid；Two ball grinders are symmetrically put into planetary ball mill, are in rotating speed
Under conditions of 350 rpm and every 30 minutes automatic conversion direction of rotation after the h of ball milling 40, it is the short of 200 nm to obtain average length
Cut halloysite nanotubes；
（C）Take step（B）The halloysite nanotubes after handling that are chopped are added to the water that pH is the polysorbas20 that 8, concentration is 15 wt%
Ultrasonic 24 h in solution, filtering is stand-by after 30 h in being dried in vacuo at 68 DEG C after being eluted with water.
Described halloysite nanotubes are commercially available prod, its main specifications：Character：White powder；Composition：SiO2：58.1、
Al2O3：41.02、TiO2：0.17、Fe2O3：0.38、P2O5：0.16；Bore：15-22 nm；Pipe external diameter：40-70 nm；It is long
Degree：<1.5 μm；Specific surface area：53.4 m2/g；Density：2.5-2.6g/cm3。
Described polysorbas20 is commercially available, its main specifications：Character：Pale yellow viscous liquid；Active matter：98-99%；Acid number
(KOHmg/g)：≤1.0；Hydroxyl value (KOHmg/g)：80-108；HLB value：16.7；Saponification number (KOHmg/g)：40-50；Moisture content
(%)：≤1.0.
The preparation process of regeneration aggregate pervious concrete as described above is as follows：
1）By cement, flyash, fine sand, ultra-fine microballon, regenerated coarse aggregate, natural coarse aggregate, interior sealing compound, composite toughening material
Material pours into dry mixing 30s in concrete mixer；
2）Water, water reducer and decrement toughener are added, continues mix 60s, obtains the regeneration aggregate pervious concrete.
28 days compression strength of obtained regeneration aggregate pervious concrete is 66.7Mpa, and 28 days cleavage strengths are 5.65Mpa,
Soil, coefficient of permeability（25℃）For 3.2mm/s；Continuous porosity is 15%；Compression strength loss rate is after 25 Frozen-thawed cycleds
12.6%。
Embodiment 2
A kind of regeneration aggregate pervious concrete, is counted by weight, and its raw material includes 360 parts of cement, 360 parts of fine sand, superfine
30 parts of pearl, 60 parts of flyash, 900 parts of regenerated coarse aggregate, 400 parts of natural coarse aggregate, 4 parts of water reducer, 120 parts of water, composite toughening
30 parts of material, 0.1 part of toughener of decrement, 10 parts of interior sealing compound.
Described decrement toughener is the mixture of methyldiethoxysilane and graphene oxide, and its preparation method is：
Methyldiethoxysilane and graphene oxide are pressed 1:0.5 mass ratio mixing, forms decrement toughener.
Described water reducer is naphthalene series high-efficiency water-reducing agent, and its water-reducing rate is 24%.
The ultra-fine microballon is the hollow glass micropearl sorted out from flyash, and in light gray powder, density is
2.49g/cm3, specific surface area 1200m2/kg。
The fine sand is river sand, and its modulus of fineness is 3.5, and bulk density is 1800kg/m3。
The preparation method of the regenerated coarse aggregate is：Waste and old concrete is crushed, sorted, sieved, cleaned, done
It is dry to obtain waste and old concrete regeneration aggregate, again waste and old concrete regeneration aggregate sieve obtaining diameter 10mm-15mm's
Waste and old concrete regenerated coarse aggregate.
Described composite toughening material is a kind of composite available for concrete activeness and quietness, and its preparation method is：
After the activated processing of halloysite nanotubes, reacted with thionyl chloride, the surface carboxyl groups of halloysite nanotubes are converted into acyl chlorides
After functional group, and difunctional organic compound reaction, then reacted with Cyanuric Chloride, obtain surface and there is active chloride triazine ring
Halloysite nanotubes, finally prepared with methylcellulose by nucleophilic substitution, specifically include following steps：
（1）By the halloysite nanotubes of activated processing（30 kg）And thionyl chloride（60 kg）In 1-METHYLPYRROLIDONE（230
L）Middle mixing, is stirred at 55 DEG C after 6 h, in ultrasound 10h at 80 DEG C in 40 kHz, 200 KW supersonic wave cleaning machine,
Then 30 min are centrifuged with 5000 rpm rotating speed, after separating solid and being cleaned through carbon tetrachloride, then the vacuum drying at 35 DEG C
30 h；
（2）Take step（1）Handle obtained halloysite nanotubes（30 kg）, ethylenediamine（8 kg）And triethylamine（6 L）In N- first
Base pyrrolidones（220 L）Middle mixing, is stirred at 60 DEG C after 5 h, under nitrogen protection, in 20 kHz, 150 KW ultrasound
In after the h of ultrasonic reaction 6 at 85 DEG C, removing triethylamine and 1-METHYLPYRROLIDONE, then blended solvent R under reduced pressure in ripple cleaning machine
（It is made up of ethanol, acetone and water, wherein the volume ratio of ethanol, acetone and water is 2:2:6）After cleaning, it is dried in vacuo at 20 DEG C
24 h；
（3）Take step（2）Handle obtained halloysite nanotubes（20 kg）And Cyanuric Chloride（5 kg）In tetrahydrofuran（230
L）Middle mixing, stirs 12 h at 10 DEG C, in after ultrasound 3h at 10 DEG C in 40 kHz, 200 KW supersonic wave cleaning machine, then
Reacted at 10 DEG C after 24 h, cleaned through tetrahydrofuran, 24 h are dried in vacuo at 15 DEG C；
（4）Take step（3）Handle obtained halloysite nanotubes（20 kg）In N, N '-dimethyl formamide（200 L）Middle dissolving
Afterwards, it is added to and is dissolved with methylcellulose（5 kg, viscosity average molecular weigh is 20000, and substitution value is 2.0）N, N '-dimethyl first
Amide solution（50 L ）In, 5 h are stirred at 20 DEG C, in ultrasonic at 20 DEG C in 40 kHz, 300 KW supersonic wave cleaning machine
1 h, is warming up to after 60 DEG C, the h of isothermal reaction 36 under nitrogen protection, then is warming up to 95 DEG C, and isothermal reaction 24h is removed under reduced pressure molten
Agent, after being eluted with water, is dried in vacuo after 48 h at 40 DEG C, obtains the composite toughening material.
Above-mentioned steps（1）Described in halloysite nanotubes activation process step：
（A）Halloysite nanotubes are taken, is handled through mechanical crushing and uses 350 mesh sieves stand-by after selecting；
（B）In two L ball grinders of identical 15（Nylon tank）In each stainless steel ball for loading 60 a diameter of 5 mm and 50
A diameter of 10 mm stainless steel ball, is then respectively adding through step（A）The kg of halloysite nanotubes 6 after processing, then drip respectively
Plus 600 ml absolute ethyl alcohols, and sealed with nylon lid；Two ball grinders are symmetrically put into planetary ball mill, are in rotating speed
Under conditions of 350 rpm and every 30 minutes automatic conversion direction of rotation after the h of ball milling 56, it is the short of 200 nm to obtain average length
Cut halloysite nanotubes；
（C）Take step（B）The halloysite nanotubes after handling that are chopped are added to the water that pH is the polysorbas20 that 8, concentration is 15 wt%
Ultrasonic 24 h in solution, filtering is stand-by after 30 h in being dried in vacuo at 68-70 DEG C after being eluted with water.
Described halloysite nanotubes are commercially available prod, its main specifications：Character：White powder；Composition：SiO2：58.1、
Al2O3：41.02、TiO2：0.17、Fe2O3：0.38、P2O5：0.16；Bore：15-22 nm；Pipe external diameter：40-70 nm；It is long
Degree：<1.5 μm；Specific surface area：53.4 m2/g；Density：2.5-2.6g/cm3。
Described polysorbas20 is commercially available, its main specifications：Character：Pale yellow viscous liquid；Active matter：98-99%；Acid number
(KOHmg/g)：≤1.0；Hydroxyl value (KOHmg/g)：80-108；HLB value：16.7；Saponification number (KOHmg/g)：40-50；Moisture content
(%)：≤1.0.
The preparation process of regeneration aggregate pervious concrete as described above is as follows：
1）By cement, flyash, fine sand, ultra-fine microballon, regenerated coarse aggregate, natural coarse aggregate, interior sealing compound, composite toughening material
Pour into dry mixing 60s in concrete mixer；
2）Water, water reducer and decrement toughener are added, continues mix 120s, obtains the regeneration aggregate pervious concrete.
28 days compression strength of obtained regeneration aggregate pervious concrete is 75.7Mpa, and 8 days cleavage strengths are 5.86Mpa,
Soil, coefficient of permeability（25℃）For 3.5mm/s；Continuous porosity is 16%；Compression strength loss rate is after 25 Frozen-thawed cycleds
11.8%。
Embodiment 3
A kind of regeneration aggregate pervious concrete, is counted by weight, and its raw material includes 340 parts of cement, 340 parts of fine sand, superfine
25 parts of pearl, 50 parts of flyash, 850 parts of regenerated coarse aggregate, 350 parts of natural coarse aggregate, 3.5 parts of water reducer, 110 parts of water, are combined and increase
Tough 25 parts of material, 0.06 part of toughener of decrement, 7.5 parts of interior sealing compound.
Described decrement toughener is the mixture of methyldiethoxysilane and graphene oxide, and its preparation method is：
Methyldiethoxysilane and graphene oxide are pressed 1:0.5 mass ratio mixing, forms decrement toughener.
Described water reducer is naphthalene series high-efficiency water-reducing agent, and its water-reducing rate is 22%.
The ultra-fine microballon is the hollow glass micropearl sorted out from flyash, and in light gray powder, density is
2.49g/cm3, specific surface area 1200m2/kg。
The fine sand is river sand, and its modulus of fineness is 3.0, and bulk density is 1600kg/m3。
The preparation method of the regenerated coarse aggregate is：Waste and old concrete is crushed, sorted, sieved, cleaned, done
It is dry to obtain waste and old concrete regeneration aggregate, again waste and old concrete regeneration aggregate sieve obtaining diameter 10mm-15mm's
Waste and old concrete regenerated coarse aggregate.
Described composite toughening material is a kind of composite available for concrete activeness and quietness, and its preparation method is：
After the activated processing of halloysite nanotubes, reacted with thionyl chloride, the surface carboxyl groups of halloysite nanotubes are converted into acyl chlorides
After functional group, and difunctional organic compound reaction, then reacted with Cyanuric Chloride, obtain surface and there is active chloride triazine ring
Halloysite nanotubes, finally prepared with methylcellulose by nucleophilic substitution, specifically include following steps：
（1）By the halloysite nanotubes of activated processing（18 kg）And thionyl chloride（35 kg）In N, N '-dimethyl acetamide
（140 L）Middle mixing, is stirred at 50 DEG C after 10 h, in super at 75 DEG C in 40 kHz, 200 KW supersonic wave cleaning machine
The h of sound 13, then centrifuges 35 min with 4500 rpm rotating speed, after separating solid and being cleaned through anhydrous propanone, then at 30 DEG C very
Sky dries 40 h；
（2）Take step（1）Handle obtained halloysite nanotubes（20 kg）, l, 6- hexamethylene diamines（5 kg）And triethylamine（4 L）
N, N '-dimethyl acetamide（150 L）Middle mixing, is stirred at 55 DEG C after 10 h, under nitrogen protection, in 20 kHz, 150
In after the h of ultrasonic reaction 8 at 78 DEG C, removing triethylamine and N under reduced pressure in KW supersonic wave cleaning machine, N '-dimethyl acetamide, then
Blended solvent R（It is made up of ethanol, acetone and water, wherein the volume ratio of ethanol, acetone and water is 2:2:6）After cleaning, 15
35 h are dried in vacuo at DEG C；
（3）Take step（2）Handle obtained halloysite nanotubes（12 kg）And Cyanuric Chloride（3 kg）In tetrahydrofuran（150
L）Middle mixing, stirs 18 h at 5 DEG C, in after ultrasonic 6 h at 5 DEG C in 40 kHz, 200 KW supersonic wave cleaning machine, then
Reacted at 5 DEG C after 36 h, cleaned through tetrahydrofuran, 38 h are dried in vacuo at 12 DEG C；
（4）Take step（3）Handle obtained halloysite nanotubes（12 kg）In N, N '-dimethyl formamide（150L）Middle dissolving
Afterwards, it is added to and is dissolved with methylcellulose（3 kg, viscosity average molecular weigh is 12000, and substitution value is 1.0）N, N '-dimethyl first
Amide solution（30 L ）In, 8 h are stirred at 15 DEG C, in ultrasonic at 15 DEG C in 40 kHz, 300 KW supersonic wave cleaning machine
3 h, are warming up to after 50 DEG C, the h of isothermal reaction 46 under nitrogen protection, then are warming up to 90 DEG C, and isothermal reaction 36h is removed under reduced pressure molten
Agent, after being eluted with water, is dried in vacuo after 36 h at 40 DEG C, obtains the composite toughening material.
Above-mentioned steps（1）Described in halloysite nanotubes activation process step：
（A）Halloysite nanotubes are taken, is handled through mechanical crushing and uses 350 mesh sieves stand-by after selecting；
（B）In two L ball grinders of identical 15（Nylon tank）In each stainless steel ball for loading 60 a diameter of 5 mm and 50
A diameter of 10 mm stainless steel ball, is then respectively adding through step（A）The kg of halloysite nanotubes 6 after processing, then drip respectively
Plus 600 ml absolute ethyl alcohols, and sealed with nylon lid；Two ball grinders are symmetrically put into planetary ball mill, are in rotating speed
Under conditions of 350 rpm and every 30 minutes automatic conversion direction of rotation after ball milling 50h, it is the short of 220 nm to obtain average length
Cut halloysite nanotubes；
（C）Take step（B）The halloysite nanotubes after handling that are chopped are added to the water that pH is the polysorbas20 that 8, concentration is 15 wt%
Ultrasonic 24 h in solution, filtering is stand-by after 30 h in being dried in vacuo at 70 DEG C after being eluted with water.
Described halloysite nanotubes are commercially available prod, its main specifications：Character：White powder；Composition：SiO2：58.1、
Al2O3：41.02、TiO2：0.17、Fe2O3：0.38、P2O5：0.16；Bore：15-22 nm；Pipe external diameter：40-70 nm；It is long
Degree：<1.5 μm；Specific surface area：53.4 m2/g；Density：2.5-2.6g/cm3。
Described polysorbas20 is commercially available, its main specifications：Character：Pale yellow viscous liquid；Active matter：98-99%；Acid number
(KOHmg/g)：≤1.0；Hydroxyl value (KOHmg/g)：80-108；HLB value：16.7；Saponification number (KOHmg/g)：40-50；Moisture content
(%)：≤1.0.
The preparation process of regeneration aggregate pervious concrete as described above is as follows：
1）By cement, flyash, fine sand, ultra-fine microballon, regenerated coarse aggregate, natural coarse aggregate, interior sealing compound, composite toughening material
Material pours into dry mixing 45s in concrete mixer；
2）Water, water reducer and decrement toughener are added, continues mix 90s, obtains the regeneration aggregate pervious concrete.
28 days compression strength of obtained regeneration aggregate pervious concrete is 79.8Mpa, and 8 days cleavage strengths are 5.92Mpa,
Soil, coefficient of permeability（25℃）For 3.6mm/s；Continuous porosity is 18%；Compression strength loss rate is after 25 Frozen-thawed cycleds
10.4%。
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, should all belong to the covering scope of the present invention.
Claims (10)
1. a kind of regeneration aggregate pervious concrete, it is characterised in that：Count by weight, the raw material of the concrete includes：Water
320-360 parts of mud, 320-360 parts of fine sand, ultra-fine microballon 20-30 parts, 40-60 parts of flyash, 700-900 parts of regenerated coarse aggregate,
300-400 parts of natural coarse aggregate, 3-4 parts of water reducer, 100-120 parts of water, 20-30 parts of composite toughening material, decrement toughener
0.02-0.1 parts and interior sealing compound 5-10 parts.
2. a kind of regeneration aggregate pervious concrete according to claim 1, it is characterised in that：The decrement toughener is first
The mixture of base diethoxy silane and graphene oxide, its preparation method is：By methyldiethoxysilane and graphite oxide
Alkene presses 1:0.5 mass ratio mixing, forms decrement toughener.
3. a kind of regeneration aggregate pervious concrete according to claim 1, it is characterised in that：Described water reducer is naphthalene
Series high-efficiency water-reducing agent, its water-reducing rate is 18-24%；The ultra-fine microballon is the hollow glass micropearl sorted out from flyash,
Density is 2.49g/cm3, specific surface area 1200m2/kg；The fine sand is river sand, and its modulus of fineness is 2.5-3.5, bulk density
For 1500-1800kg/m3；The preparation method of the regenerated coarse aggregate is：Waste and old concrete is crushed, sorted, is sieved,
Clean, be dried to obtain waste and old concrete regeneration aggregate, again waste and old concrete regeneration aggregate sieve obtaining diameter
10mm-15mm waste and old concrete regenerated coarse aggregate.
4. a kind of regeneration aggregate pervious concrete according to claim 1, it is characterised in that：Described composite toughening material
Preparation method be：After halloysite nanotubes activation process, reacted with thionyl chloride, by the surface carboxyl groups of halloysite nanotubes
Be converted into after acid chloride functional groups, and difunctional organic compound reaction, then reacted with Cyanuric Chloride, obtain surface exist it is active
The halloysite nanotubes of chloride triazine ring, are finally prepared with methylcellulose by nucleophilic substitution；The compound increasing
In tough material, the mass ratio of halloysite nanotubes and methylcellulose is 1:0.1-0.5.
5. a kind of regeneration aggregate pervious concrete according to claim 4, it is characterised in that：Described composite toughening material
Preparation method, specifically include following steps：
（1）The halloysite nanotubes and thionyl chloride of activated processing are mixed in organic solvent P, stirred at 40-55 DEG C
After 6-15 h, in ultrasound 10-16 h at 70-80 DEG C in 40 kHz, 200 KW supersonic wave cleaning machine, then with 4000-
5000 rpm rotating speed centrifugation 30-40 min, after separating solid and being cleaned through organic solvent Q, then the vacuum drying at 25-35 DEG C
30-50 h；
（2）Take step（1）Obtained halloysite nanotubes are handled with difunctional organic compound and triethylamine in organic solvent P
Middle mixing, is stirred after 5-15 h at 50-60 DEG C, under nitrogen protection, in 20 kHz, 150 KW supersonic wave cleaning machine
In after ultrasonic reaction 6-10 h at 70-85 DEG C, removing triethylamine and organic solvent P under reduced pressure, then after blended solvent R is cleaned,
24-48 h are dried in vacuo at 10-20 DEG C；
（3）Take step（2）Handle obtained halloysite nanotubes and Cyanuric Chloride is mixed in tetrahydrofuran, stirred at 0-10 DEG C
12-24 h are mixed, in after ultrasound 3-8 h at 0-10 DEG C in 40 kHz, 200 KW supersonic wave cleaning machine, then at 0-10 DEG C
React after 24-72 h, cleaned through tetrahydrofuran, 24-56 h are dried in vacuo at 10-15 DEG C；
（4）Take step（3）After the halloysite nanotubes that processing is obtained dissolve in N, N '-dimethyl formamide, dissolving is added to
Have in the N of methylcellulose, N '-dimethyl formamide solution, 5-10 h are stirred at 10-20 DEG C, in 40 kHz, 300 KW
In ultrasound 1-5 h at 10-20 DEG C in supersonic wave cleaning machine, 40-60 DEG C, isothermal reaction 36-56 h are warming up under nitrogen protection
Afterwards, then it is warming up to 80-95 DEG C, isothermal reaction 24-48h removes solvent under reduced pressure, after being eluted with water, and 24- is dried in vacuo at 40 DEG C
After 48 h, the composite toughening material is obtained.
6. a kind of regeneration aggregate pervious concrete according to claim 5, it is characterised in that：The organic solvent P is first
One or more in benzene, 1-METHYLPYRROLIDONE and N, N '-dimethyl acetamide；The organic solvent Q be anhydrous propanone or
Carbon tetrachloride；The mixed solvent R is made up of ethanol, acetone and water, and wherein the volume ratio of ethanol, acetone and water is 2:2:6；Institute
It is one kind in 1,3- propane diamine, ethylenediamine and l, 6- hexamethylene diamine to state difunctional organic compound.
7. a kind of regeneration aggregate pervious concrete according to claim 5, it is characterised in that：Step（1）In, it is activated
The halloysite nanotubes of processing are 6-30 kg, and thionyl chloride is 10-60 kg；Organic solvent P is 50-230 L；Step（2）In,
The halloysite nanotubes are 5-30 kg, and difunctional organic compound is 1-8 kg, and triethylamine is 1-6 L, organic solvent P
For 50-220 L；Step（3）In, the halloysite nanotubes are 5-20 kg, and Cyanuric Chloride is 0.5-5 kg, and tetrahydrofuran is
60-230 L；Step（4）In, the halloysite nanotubes are 5-20 kg, dissolve the N of halloysite nanotubes, N '-dimethyl first
Acid amides is 50-200 L, and methylcellulose is 1-5 kg, dissolves the N of methylcellulose, and N '-dimethyl formamide is 10-50 L.
8. a kind of regeneration aggregate pervious concrete according to claim 5, it is characterised in that：Step（4）Described in first
The viscosity average molecular weigh of base cellulose is 3000-20000, and substitution value is 0.5-2.0.
9. a kind of regeneration aggregate pervious concrete according to claim 5, it is characterised in that：Step（1）Described in angstrom
The activation process step of Lip river stone nanotube is：
（A）Halloysite nanotubes are taken, is handled through mechanical crushing and uses 350 mesh sieves stand-by after selecting；
（B）Each stainless steel ball for loading 60 a diameter of 5 mm and 50 a diameter of 10 in two L ball grinders of identical 15
Mm stainless steel ball, is then respectively adding through step（A）The kg of halloysite nanotubes 6 after processing, then be added dropwise respectively 600 ml without
Water-ethanol, and sealed with nylon lid；Two ball grinders are symmetrically put into planetary ball mill, rotating speed be 350 rpm and
Under conditions of every 30 minutes automatic conversion direction of rotation after ball milling 40-56 h, average length being chopped for 200-230 nm is obtained
Halloysite nanotubes；
（C）Take step（B）The halloysite nanotubes after handling that are chopped are added to the water that pH is the polysorbas20 that 8, concentration is 15 wt%
Ultrasonic 24 h in solution, filtering is stand-by after 30 h in being dried in vacuo at 68-70 DEG C after being eluted with water.
10. a kind of method for preparing regeneration aggregate pervious concrete as claimed in claim 1, it is characterised in that：Specifically include
Following steps：
1）By cement, flyash, fine sand, ultra-fine microballon, regenerated coarse aggregate, natural coarse aggregate, interior sealing compound and composite toughening
Material pours into 30~60s of dry mixing in concrete mixer；
2）Water, water reducer and decrement toughener are added, continues 60~120s of mix, obtains the permeable coagulation of the regeneration aggregate
Soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710399215.9A CN107021708A (en) | 2017-05-31 | 2017-05-31 | A kind of regeneration aggregate pervious concrete and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710399215.9A CN107021708A (en) | 2017-05-31 | 2017-05-31 | A kind of regeneration aggregate pervious concrete and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107021708A true CN107021708A (en) | 2017-08-08 |
Family
ID=59529490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710399215.9A Pending CN107021708A (en) | 2017-05-31 | 2017-05-31 | A kind of regeneration aggregate pervious concrete and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107021708A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107827404A (en) * | 2017-11-24 | 2018-03-23 | 廊坊荣盛混凝土有限公司 | Pervious concrete is prepared using regeneration aggregate |
| CN108863241A (en) * | 2018-08-02 | 2018-11-23 | 安徽申泉化工有限公司 | A kind of concrete and preparation method thereof that water permeability is good |
| CN108975749A (en) * | 2018-09-18 | 2018-12-11 | 科之杰新材料集团有限公司 | A kind of preparation method of pervious concrete reinforcing agent |
| CN109516734A (en) * | 2017-09-20 | 2019-03-26 | 天津超能建材有限公司 | Pervious concrete and preparation method thereof |
| CN110510949A (en) * | 2019-09-03 | 2019-11-29 | 亚泰集团长春建材有限公司 | A kind of recycled aggregate pervious concrete and its preparation method and application |
| CN115851246A (en) * | 2022-11-29 | 2023-03-28 | 嘉华特种水泥股份有限公司 | Oil well cement toughening material for well cementation and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786272A (en) * | 2012-05-04 | 2012-11-21 | 武汉理工大学 | High-ductility compact homogenous C60 marine concrete and preparation method thereof |
| CN105541200A (en) * | 2015-12-30 | 2016-05-04 | 中环建筑（福建）有限公司 | Sponge municipal high-strength high-toughness regenerated aggregate concrete and preparation method thereof |
| CN105622132A (en) * | 2015-12-30 | 2016-06-01 | 中环建筑（福建）有限公司 | Sponge-city environment-friendly recycled-aggregate pervious concrete and preparing method thereof |
| CN106007563A (en) * | 2016-05-19 | 2016-10-12 | 山东宏艺科技股份有限公司 | Ecological and environmental protection type pervious concrete prepared from waste concrete |
| CN106045403A (en) * | 2016-06-08 | 2016-10-26 | 福建江夏学院 | Pervious recycled aggregate concrete with microwave absorbing function and preparation method of pervious recycled aggregate concrete |
| CN106082799A (en) * | 2016-06-08 | 2016-11-09 | 福建江夏学院 | A kind of anti-crack concrete with anti-electromagnetic radiation and preparation method thereof |
-
2017
- 2017-05-31 CN CN201710399215.9A patent/CN107021708A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786272A (en) * | 2012-05-04 | 2012-11-21 | 武汉理工大学 | High-ductility compact homogenous C60 marine concrete and preparation method thereof |
| CN105541200A (en) * | 2015-12-30 | 2016-05-04 | 中环建筑（福建）有限公司 | Sponge municipal high-strength high-toughness regenerated aggregate concrete and preparation method thereof |
| CN105622132A (en) * | 2015-12-30 | 2016-06-01 | 中环建筑（福建）有限公司 | Sponge-city environment-friendly recycled-aggregate pervious concrete and preparing method thereof |
| CN106007563A (en) * | 2016-05-19 | 2016-10-12 | 山东宏艺科技股份有限公司 | Ecological and environmental protection type pervious concrete prepared from waste concrete |
| CN106045403A (en) * | 2016-06-08 | 2016-10-26 | 福建江夏学院 | Pervious recycled aggregate concrete with microwave absorbing function and preparation method of pervious recycled aggregate concrete |
| CN106082799A (en) * | 2016-06-08 | 2016-11-09 | 福建江夏学院 | A kind of anti-crack concrete with anti-electromagnetic radiation and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 孙攀等: "埃洛石纳米管增强聚合物复合材料研究进展", 《中国科学：技术科学》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516734A (en) * | 2017-09-20 | 2019-03-26 | 天津超能建材有限公司 | Pervious concrete and preparation method thereof |
| CN107827404A (en) * | 2017-11-24 | 2018-03-23 | 廊坊荣盛混凝土有限公司 | Pervious concrete is prepared using regeneration aggregate |
| CN108863241A (en) * | 2018-08-02 | 2018-11-23 | 安徽申泉化工有限公司 | A kind of concrete and preparation method thereof that water permeability is good |
| CN108975749A (en) * | 2018-09-18 | 2018-12-11 | 科之杰新材料集团有限公司 | A kind of preparation method of pervious concrete reinforcing agent |
| CN110510949A (en) * | 2019-09-03 | 2019-11-29 | 亚泰集团长春建材有限公司 | A kind of recycled aggregate pervious concrete and its preparation method and application |
| CN110510949B (en) * | 2019-09-03 | 2022-03-04 | 亚泰集团长春建材有限公司 | Recycled aggregate pervious concrete and preparation method and application thereof |
| CN115851246A (en) * | 2022-11-29 | 2023-03-28 | 嘉华特种水泥股份有限公司 | Oil well cement toughening material for well cementation and preparation method thereof |
| CN115851246B (en) * | 2022-11-29 | 2023-11-21 | 嘉华特种水泥股份有限公司 | Oil well cement toughening material for well cementation and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107021708A (en) | A kind of regeneration aggregate pervious concrete and preparation method thereof | |
| CN105541200B (en) | Sponge city high-strength and high-ductility regenerated aggregate concrete and preparation method thereof | |
| CN105541212B (en) | A kind of composite material toughening haydite concrete and preparation method thereof | |
| CN107032681A (en) | A kind of environmentally friendly high tenacity regeneration aggregate pervious concrete and preparation method thereof | |
| CN105622132B (en) | A kind of sponge urban environmental protection regeneration aggregate pervious concrete and preparation method thereof | |
| CN107285707A (en) | A kind of very-high performance fiber concrete of C220 strength grades containing coarse aggregate and preparation method thereof | |
| CN105541201B (en) | A kind of high tenacity haydite concrete and preparation method thereof | |
| CN107285711A (en) | A kind of C250 strength grade very-high performance fiber concretes containing coarse aggregate and preparation method thereof | |
| CN107285708B (en) | A kind of C240 strength grade very-high performance fiber concrete and preparation method thereof containing coarse aggregate | |
| CN107382205A (en) | A kind of super high strength high performance fiber concrete of C160 strength grades and preparation method thereof | |
| CN109265087B (en) | Road recycled aggregate pervious concrete and preparation method thereof | |
| CN107512887B (en) | A kind of C230 strength grade very-high performance fiber concrete and preparation method thereof containing coarse aggregate | |
| CN108892438A (en) | A kind of high tenacity lightweight concrete and preparation method thereof | |
| CN108623833A (en) | A kind of preparation method of multi-functional aerogel composite | |
| CN101503286B (en) | Attapulgite putty powder for exterior wall | |
| CN111393101A (en) | Pervious concrete and preparation method thereof | |
| CN107352915A (en) | A kind of high-performance fiber concrete of C110 strength grades and preparation method thereof | |
| CN107352913A (en) | A kind of super high strength high performance fiber concrete of C180 strength grades and preparation method thereof | |
| CN107056123A (en) | A kind of concrete activeness and quietness composite and preparation method thereof | |
| CN105400120B (en) | A kind of composite for concrete toughness reinforcing | |
| CN107352916A (en) | A kind of very-high performance fiber concrete of C210 strength grades containing coarse aggregate and preparation method thereof | |
| CN107352912A (en) | A kind of super high strength high performance fiber concrete of C170 strength grades and preparation method thereof | |
| CN107344842A (en) | A kind of good endurance Aggregate of recycled concrete aerated bricks and preparation method thereof | |
| CN107129209A (en) | A kind of composite toughening cracking resistance haydite concrete | |
| CN108483978B (en) | Cementing agent for regenerated pervious concrete and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170808 |