CN108911617A - A kind of preparation method of environment-friendly type waterproof mortar for building - Google Patents
A kind of preparation method of environment-friendly type waterproof mortar for building Download PDFInfo
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- CN108911617A CN108911617A CN201810847788.8A CN201810847788A CN108911617A CN 108911617 A CN108911617 A CN 108911617A CN 201810847788 A CN201810847788 A CN 201810847788A CN 108911617 A CN108911617 A CN 108911617A
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- 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
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- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of preparation method of environment-friendly type waterproof mortar for building, the preparation method includes the following steps：(1) styrene in mass ratio 1 is taken：1 is added sodium hydroxide solution, it is stirred, it takes precipitating to be washed with distilled water after standing, is evaporated under reduced pressure, obtain vacuum distillation object, according to the mass fraction, 0.3-0.6 parts of n-bromide butanes, 0.7-0.9 parts of alchlors, 91-93 part 1 are taken, 2- dichloroethanes, 33-40 parts of vacuum distillation objects are stirred in 25-28 DEG C, stirring mixture is obtained, stirring mixture in mass ratio 1 is taken：6 are added methanol, are stirred, and filter, take filter residue.The present invention is using styrene as raw material, hardening of cement slurry micro-structure can be improved, alleviate internal stress, reduce the generation of micro-crack, the compactness of waterproof polymer mortar is enhanced, polymer forms polymer network structure in concrete, and the continuous structure formed with the cement slurry of hardening is interweaved, and wrap up cement mortar aggregate, so that the structure of concrete is strengthened.
Description
Technical field
The invention belongs to the field of building materials, and in particular to a kind of preparation method of environment-friendly type waterproof mortar for building.
Background technique
Currently used as the waterproof layer of waterproofing work waterproof mortar there are three types of：Mix the waterproof mortar of waterproofing agent；Rigid multi-layer
The cement mortar of plastering；Polymer cement materials.Although achieving certain effect, due in these mortars often
It is mixed with polymer, therefore under long-term cryogenic conditions after use, it may appear that the bad problem of aging, waterproof performance.Therefore
Urgently develop the waterproof mortar that waterproof performance is good, non-aging.
Summary of the invention
One, technical problems to be solved
The technical problem to be solved in the present invention is to provide a kind of preparation methods of environment-friendly type waterproof mortar for building, to solve
The technical problem.
Two, technical solution
To solve the technical problem, the technical scheme adopted by the invention is that：A kind of environment-friendly type waterproof mortar for building
Preparation method, the preparation method includes the following steps：
(1) styrene in mass ratio 1 is taken：1 is added sodium hydroxide solution, is stirred, precipitating distilled water is taken after standing
Washing, vacuum distillation obtain vacuum distillation object and take 0.3-0.6 parts of n-bromide butanes, 0.7-0.9 parts of tri-chlorinations according to the mass fraction
Aluminium, 91-93 part 1,2- dichloroethanes, 33-40 parts of vacuum distillation objects, are stirred in 25-28 DEG C, obtain stirring mixture, take
Stir mixture in mass ratio 1：6 are added methanol, are stirred, and filter, take filter residue；
(2) polyvinyl alcohol in mass ratio 1 is taken：Distilled water mixing is added in 42-50, is warming up to 75-78 DEG C and is stirred, obtains
Mixture takes 75-90 parts of mixtures, 1-2 parts of magnesium carbonate, 0.6-0.7 parts of dibenzoyl peroxides, 100- according to the mass fraction
140 parts of filter residues are warming up to 82-85 DEG C of reaction, then are warming up to 100-108 DEG C of heat preservation 1.5-2h, filtering, take filter residue a dry, obtain
Dried object；
(3) according to the mass fraction, 8-9 parts of sulfuric acid, 1,1,2- trichloroethanes of 45-60 part, 5-7 parts of dried objects are taken, are warming up to
76-80 DEG C is stirred, and obtains mixture A, and mixture A is placed in still, in 90-98 DEG C of back flow reaction, is cooled to room
Temperature, filtering, obtains filter residue b, takes filter residue b in mass ratio 1：10：3 addition distilled water, calcium hydroxide are stirred, and are filtered, are taken filter
Liquid；
(4) according to the mass fraction, 110-150 parts of deionized waters, 9-12 parts of sorbester p17s, 2-3 parts of paregal Os, 7-10 parts are taken
Polyethylene glycol, 42-50 part octyltri-ethoxysilane, are stirred in 30-38 DEG C, cooling, obtain cooled material, take cooled material by
Mass ratio 3：10 are added filtrate mixing, obtain waterproof mortar mixing additive；
(5) tetraethyl orthosilicate in mass ratio 3 is taken：4, which are added absolute ethyl alcohol and stirring, mixes 35-40min, adds positive silicic acid
The hydrochloric acid of tetra-ethyl ester quality 2-4%, is stirred in 32-35 DEG C, obtains stirring mixture b, takes stirring mixture b in mass ratio
2：5, which are added waterproof mortar, mixes additives mixed, is stirred in 32-35 DEG C, obtains waterproof matrix object；
(6) according to the mass fraction, take 150-180 parts of waterproof matrix objects, 25-30 parts of nano clays, 200-280 parts of cement,
420-500 parts of quartz sands, 15-19 parts of water-reducing agents, 75-90 parts of re-dispersible glue powders, 50-58 parts of waste ceramic powder are stirred
25-30min to get arrive waterproof mortar.
Three, beneficial effect
The present invention is compared to the prior art, has the advantages that：
One, the present invention carries out cationic polymerization through 1,2- dichloroethanes, with polyvinyl alcohol and carbonic acid using styrene as raw material
Magnesium is suspending agent, and the concentrated sulfuric acid is sulfonated reagent, and Sulfonates substance is made in azeotropic dehydration, for the poly- electrolysis of water-soluble cationic
Matter, containing a large amount of active group-sulfonic group, after mortar and water mix, active group easily with the calcium in hydrolysis product of cement
Aluminium ion etc. generates cross-linking reaction, forms special bridged bond effect, can improve hardening of cement slurry micro-structure, alleviate internal stress,
The generation for reducing micro-crack, enhances the compactness of waterproof polymer mortar, can also lead between polymer and hydrolysis product of cement
Cross hydrogen bond, Van der Waals force and interact, certain improvement result, conduct are played to the micro-structure of cement slurry and concrete
A kind of polymer forms polymer network structure in concrete, and the continuous structure formed with the cement slurry of hardening is mutually handed over
It knits, and cement mortar aggregate is wrapped up, the structure of concrete is made to be strengthened；
Two, the present invention, by osmosis, makes its active chemistry in the micropore and capillary of concrete using water as carrier
It is transmitted in hole, fill micropore and crack and the cement granules of incomplete aquation in concrete is promoted to continue that hydration, shape occurs
At insoluble crystal, when concrete is dry, polymer works as concrete cracking in a dormant state, when having water infiltration, the object
Then continuous hydration generates new crystallization to matter, and fracture is filled automatically, self-regeneration is realized, when extending the use of waterproof mortar
Between, enhance its service performance, the good state of waterproof performance can be still kept after long-time service；
Three, the present invention is that the lesser silane emulsion of diameter grain is made in raw material, then passes through just first with octyltri-ethoxysilane
Tetraethyl orthosilicate adds catalyst that silica solution substance is made, and the two is compounded, and is because of a large amount of silicon existing for silica solution surface
With the alkyl on silane dehydration or dealcoholization can occur for oxygen alcohol radical, hydroxyl, form Si-O-Si long-chain, silica solution surface
Si-OH replaces by moieties or all, makes to form water-repellent layer while mortar surface densification, and silane emulsion surface itself can pole
It is low, that is, there is excellent waterproof effect, silica solution average grain diameter is small in addition, inside concrete can be penetrated into, in concrete table
Face and internal formation Si-O-Si waterproof layer, effectively prevent moisture in the infiltration and movement of inside concrete, reduce coagulation
Soil because pore absorbs water caused by crystallographic expansion in tensile stress and crystallization process due to water translocation and resets the compression formed,
Influence of the temperature change to concrete structure weakens, i.e., concrete frost resistance improves, and is used for a long time under low temperature environment and is not in
The problem of aging.
Specific embodiment
Below with reference to embodiment, a specific embodiment of the invention is described in detail.
Embodiment 1
Cement：P.O42.5, main component 25.1%SiO2, 4.2%Al2O3, 3.5%Fe2O3, 0.3%Na2O2, 0.6%
K2O, 65.5%CaO.
Quartz sand：SiO2Content is not less than 98.7%, granularity 0.08mm.
Nano clay：It is purchased from Shanghai Mike woods scientific & technical corporation；Re-dispersible glue powder：Vinyl acetate-ethylene copolymerization type
EVA。
Water-reducing agent：ZJ-PC8020 polycarboxylic acids dehydragent：White powder, water-reducing rate >=23%；PH value：7；Bulk density：
650g/dm3；Active constituent >=90%；Residual moisture≤3%.
Waste ceramic powder：Average grain diameter is 5 μm, 65.62%SiO2, 21.86%Al2O3, 2.32%CaO, 1.47%MgO.
A kind of preparation method of environment-friendly type waterproof mortar for building, includes the following steps：
(1) styrene in mass ratio 1 is taken：1 is added in the sodium hydroxide solution that mass fraction is 5%, is stirred
30min stands 2h, precipitating is taken to be washed with distilled water, and is evaporated under reduced pressure, and obtains vacuum distillation object and takes 0.3 part according to the mass fraction
N-bromide butane, 0.7 part of alchlor, 91 parts of 1,2- dichloroethanes, 33 parts of vacuum distillation objects, are stirred 3h in 25 DEG C, obtain
Mixture is stirred, stirring mixture in mass ratio 1 is taken：6 are added methanol, are stirred 20min, filter, take filter residue；
(2) polyvinyl alcohol in mass ratio 1 is taken：42 are added distilled water mixing, are warming up to 75 DEG C and are stirred 20min, obtain mixed
Object is closed to take 75 parts of mixtures, 1 part of magnesium carbonate, 0.6 part of dibenzoyl peroxide, 100 parts of filter residues according to the mass fraction, be warming up to
82 DEG C of reaction 7h, then 100 DEG C of heat preservation 1.5h are warming up to, it filters, takes filter residue a dry, obtain dried object；
(3) according to the mass fraction, the sulfuric acid, 45 part 1 that 8 parts of mass fractions are 98%, 1,2- trichloroethanes, 5 parts of dryings are taken
Object is warming up to 76 DEG C and is stirred 1h, obtain mixture A, mixture A is placed in still, in 90 DEG C of back flow reaction 10h,
It is cooled to room temperature, filters, obtain filter residue b, take filter residue b in mass ratio 1：10：3 addition distilled water, calcium hydroxide are stirred
15min, filtering, takes filtrate；
(4) according to the mass fraction, 110 parts of deionized waters, 9 parts of sorbester p17s, 2 parts of paregal Os, 7 parts of polyethylene glycol, 42 parts are taken
Octyltri-ethoxysilane is stirred 1h in 30 DEG C, cooling, obtains cooled material, takes cooled material in mass ratio 3：10 are added filtrate
Mixing, obtains waterproof mortar mixing additive；
(5) tetraethyl orthosilicate in mass ratio 3 is taken：4, which are added absolute ethyl alcohol and stirring, mixes 35min, adds positive silicic acid four
The concentration of ethyl ester quality 2% is the hydrochloric acid of 0.1mol/L, is stirred 0.5h in 32 DEG C, obtains stirring mixture b, takes stirring mixed
Close object b in mass ratio 2：5, which are added waterproof mortar, mixes additives mixed, is stirred 1h in 32 DEG C, obtains waterproof matrix object；
(6) according to the mass fraction, take 150 parts of waterproof matrix objects, 25 parts of nano clays, 200 parts of cement, 420 parts of quartz sands,
15 parts of water-reducing agents, 75 parts of re-dispersible glue powders, 50 parts of waste ceramic powder are stirred 25min to get waterproof mortar is arrived.
Embodiment 2
Cement：P.O42.5, main component 25.1%SiO2, 4.2%Al2O3, 3.5%Fe2O3, 0.3%Na2O2, 0.6%
K2O, 65.5%CaO.
Quartz sand：SiO2Content is not less than 98.7%, granularity 2.1mm.
Nano clay：It is purchased from Shanghai Mike woods scientific & technical corporation；Re-dispersible glue powder：Vinyl acetate-ethylene copolymerization type
EVA。
Water-reducing agent：ZJ-PC8020 polycarboxylic acids dehydragent：White powder, water-reducing rate >=23%；PH value：9；Bulk density：
850g/dm3；Active constituent >=90%；Residual moisture≤3%.
Waste ceramic powder：Average grain diameter is 8 μm, 65.62%SiO2, 21.86%Al2O3, 2.32%CaO, 1.47%MgO.
A kind of preparation method of environment-friendly type waterproof mortar for building, includes the following steps：
(1) styrene in mass ratio 1 is taken：1 is added in the sodium hydroxide solution that mass fraction is 5%, is stirred
50min stands 3h, precipitating is taken to be washed with distilled water, and is evaporated under reduced pressure, and obtains vacuum distillation object and takes 0.6 part according to the mass fraction
N-bromide butane, 0.9 part of alchlor, 93 parts of 1,2- dichloroethanes, 40 parts of vacuum distillation objects, are stirred 4h in 28 DEG C, obtain
Mixture is stirred, stirring mixture in mass ratio 1 is taken：6 are added methanol, are stirred 30min, filter, take filter residue；
(2) polyvinyl alcohol in mass ratio 1 is taken：50 are added distilled water mixing, are warming up to 78 DEG C and are stirred 30min, obtain
Mixture takes 90 parts of mixtures, 2 parts of magnesium carbonate, 0.7 part of dibenzoyl peroxide, 140 parts of filter residues according to the mass fraction, heating
To 85 DEG C of reaction 9h, then 108 DEG C of heat preservation 2h are warming up to, filtered, taken filter residue a dry, obtain dried object；
(3) according to the mass fraction, the sulfuric acid, 60 part 1 that 9 parts of mass fractions are 98%, 1,2- trichloroethanes, 7 parts of dryings are taken
Object is warming up to 80 DEG C and is stirred 2h, obtain mixture A, mixture A is placed in still, in 98 DEG C of back flow reaction 12h,
It is cooled to room temperature, filters, obtain filter residue b, take filter residue b in mass ratio 1：10：3 addition distilled water, calcium hydroxide are stirred
20min, filtering, takes filtrate；
(4) according to the mass fraction, 150 parts of deionized waters, 12 parts of sorbester p17s, 3 parts of paregal Os, 10 parts of polyethylene glycol, 50 are taken
Part octyltri-ethoxysilane, is stirred 2h in 38 DEG C, cooling, obtains cooled material, takes cooled material in mass ratio 3：10 are added
Filtrate mixing, obtains waterproof mortar mixing additive；
(5) tetraethyl orthosilicate in mass ratio 3 is taken：4, which are added absolute ethyl alcohol and stirring, mixes 40min, adds positive silicic acid four
The concentration of ethyl ester quality 4% is the hydrochloric acid of 0.1mol/L, is stirred 1h in 35 DEG C, obtains stirring mixture b, takes and be stirred
Object b in mass ratio 2：5, which are added waterproof mortar, mixes additives mixed, is stirred 2h in 35 DEG C, obtains waterproof matrix object；
(6) according to the mass fraction, take 180 parts of waterproof matrix objects, 30 parts of nano clays, 280 parts of cement, 500 parts of quartz sands,
19 parts of water-reducing agents, 90 parts of re-dispersible glue powders, 58 parts of waste ceramic powder are stirred 30min to get waterproof mortar.
Embodiment 3
Cement：P.O42.5, main component 25.1%SiO2, 4.2%Al2O3, 3.5%Fe2O3, 0.3%Na2O2, 0.6%
K2O, 65.5%CaO.
Quartz sand：SiO2Content is not less than 98.7%, granularity 1.09mm.
Nano clay：It is purchased from Shanghai Mike woods scientific & technical corporation；Re-dispersible glue powder：Vinyl acetate-ethylene copolymerization type
EVA。
Water-reducing agent：ZJ-PC8020 polycarboxylic acids dehydragent：White powder, water-reducing rate >=23%；PH value：8；Bulk density：
750g/dm3；Active constituent >=90%；Residual moisture≤3%.
Waste ceramic powder：Average grain diameter is 6 μm, 65.62%SiO2, 21.86%Al2O3, 2.32%CaO, 1.47%MgO.
A kind of preparation method of environment-friendly type waterproof mortar for building, includes the following steps：
(1) styrene in mass ratio 1 is taken：1 is added in the sodium hydroxide solution that mass fraction is 5%, is stirred
40min stands 2.5h, precipitating is taken to be washed with distilled water, and is evaporated under reduced pressure, and obtains vacuum distillation object and takes 0.5 according to the mass fraction
Part n-bromide butane, 0.8 part of alchlor, 92 parts of 1,2- dichloroethanes, 37 parts of vacuum distillation objects, are stirred 3.5h in 27 DEG C,
Stirring mixture is obtained, stirring mixture in mass ratio 1 is taken：6 are added methanol, are stirred 25min, filter, take filter residue；
(2) polyvinyl alcohol in mass ratio 1 is taken：46 are added distilled water mixing, are warming up to 77 DEG C and are stirred 25min, obtain
Mixture takes 82 parts of mixtures, 1.5 parts of magnesium carbonate, 0.65 part of dibenzoyl peroxide, 120 parts of filter residues according to the mass fraction,
83 DEG C of reaction 8h are warming up to, then are warming up to 105 DEG C of heat preservation 1.8h, are filtered, takes filter residue a dry, obtains dried object；
(3) according to the mass fraction, take the sulfuric acid, 53 part 1 that 8.5 parts of mass fractions are 98%, 1,2- trichloroethanes, 6 parts it is dry
Dry object is warming up to 77 DEG C and is stirred 1.5h, obtain mixture A, mixture A is placed in still, in 94 DEG C of back flow reactions
11h is cooled to room temperature, and filtering obtains filter residue b, takes filter residue b in mass ratio 1：10：3 are added distilled water, calcium hydroxide stirring mixes
17.5min is closed, filtering takes filtrate；
(4) according to the mass fraction, take 130 parts of deionized waters, 11 parts of sorbester p17s, 2.5 parts of paregal Os, 9 parts of polyethylene glycol,
46 parts of octyltri-ethoxysilanes are stirred 1.5h in 35 DEG C, cooling, obtain cooled material, take cooled material in mass ratio 3：10
Filtrate mixing is added, obtains waterproof mortar mixing additive；
(5) tetraethyl orthosilicate in mass ratio 3 is taken：4, which are added absolute ethyl alcohol and stirring, mixes 38min, adds positive silicic acid four
The concentration of ethyl ester quality 3% is the hydrochloric acid of 0.1mol/L, is stirred 0.75h in 34 DEG C, obtains stirring mixture b, takes stirring
Mixture b in mass ratio 2：5, which are added waterproof mortar, mixes additives mixed, is stirred 1.5h in 34 DEG C, obtains waterproof matrix
Object；
(6) according to the mass fraction, take 160 parts of waterproof matrix objects, 28 parts of nano clays, 240 parts of cement, 460 parts of quartz sands,
17 parts of water-reducing agents, 83 parts of re-dispersible glue powders, 54 parts of waste ceramic powder are stirred 28min to get waterproof mortar.
Comparative example：The waterproof mortar of Shanghai City company production.
Waterproof mortar made from embodiment and comparative example is subjected to performance detection respectively, specific test method is referring to JC/
T984-2011.Test result is as shown in table 1.
Table 1：
The above is only specific application examples of the invention, are not limited in any way to protection scope of the present invention.
Claims (1)
1. a kind of preparation method of environment-friendly type waterproof mortar for building, which is characterized in that the preparation method includes the following steps：
(1) styrene in mass ratio 1 is taken：1 is added sodium hydroxide solution, is stirred, takes precipitating to be washed with distilled water after standing,
Vacuum distillation, obtain vacuum distillation object, according to the mass fraction, take 0.3-0.6 parts of n-bromide butanes, 0.7-0.9 parts of alchlors,
91-93 part 1,2- dichloroethanes, 33-40 parts of vacuum distillation objects, is stirred in 25-28 DEG C, obtains stirring mixture, takes stirring
Mixture in mass ratio 1：6 are added methanol, are stirred, and filter, take filter residue；
(2) polyvinyl alcohol in mass ratio 1 is taken：Distilled water mixing is added in 42-50, is warming up to 75-78 DEG C and is stirred, is mixed
Object takes 75-90 parts of mixtures, 1-2 parts of magnesium carbonate, 0.6-0.7 parts of dibenzoyl peroxides, 100-140 parts according to the mass fraction
Filter residue is warming up to 82-85 DEG C of reaction, then is warming up to 100-108 DEG C of heat preservation 1.5-2h, filtering, takes filter residue a dry, obtains drying
Object；
(3) according to the mass fraction, 8-9 parts of sulfuric acid, 1,1,2- trichloroethanes of 45-60 part, 5-7 parts of dried objects are taken, 76-80 is warming up to
It DEG C is stirred, obtains mixture A, mixture A is placed in still, in 90-98 DEG C of back flow reaction, be cooled to room temperature, mistake
Filter, obtains filter residue b, takes filter residue b in mass ratio 1：10：3 addition distilled water, calcium hydroxide are stirred, and are filtered, are taken filtrate；
(4) according to the mass fraction, 110-150 parts of deionized waters, 9-12 parts of sorbester p17s, 2-3 parts of paregal Os, 7-10 parts of poly- second are taken
Glycol, 42-50 part octyltri-ethoxysilane, are stirred in 30-38 DEG C, cooling, obtain cooled material, take cooled material by quality
Than 3：10 are added filtrate mixing, obtain waterproof mortar mixing additive；
(5) tetraethyl orthosilicate in mass ratio 3 is taken：4, which are added absolute ethyl alcohol and stirring, mixes 35-40min, adds positive silicic acid tetrem
The hydrochloric acid of ester quality 2-4%, is stirred in 32-35 DEG C, obtains stirring mixture b, takes stirring mixture b in mass ratio 2：5
Waterproof mortar is added and mixes additives mixed, is stirred in 32-35 DEG C, obtains waterproof matrix object；
(6) according to the mass fraction, 150-180 parts of waterproof matrix objects, 25-30 parts of nano clays, 200-280 parts of cement, 420- are taken
500 parts of quartz sands, 15-19 parts of water-reducing agents, 75-90 parts of re-dispersible glue powders, 50-58 parts of waste ceramic powder are stirred 25-
30min to get arrive waterproof mortar.
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| CN114058264A (en) * | 2021-12-23 | 2022-02-18 | 中建海峡(厦门)建设发展有限公司 | Novel waterproof silane emulsion and preparation method thereof |
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| CN108328995A (en) * | 2018-03-30 | 2018-07-27 | 王建东 | A kind of preparation method of waterproof mortar |
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| CN108328995A (en) * | 2018-03-30 | 2018-07-27 | 王建东 | A kind of preparation method of waterproof mortar |
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| CN114058264A (en) * | 2021-12-23 | 2022-02-18 | 中建海峡(厦门)建设发展有限公司 | Novel waterproof silane emulsion and preparation method thereof |
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