CN115196905A - Composite concrete waterproof agent for structural self-waterproofing and preparation method and application thereof - Google Patents
Composite concrete waterproof agent for structural self-waterproofing and preparation method and application thereof Download PDFInfo
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- CN115196905A CN115196905A CN202210161834.5A CN202210161834A CN115196905A CN 115196905 A CN115196905 A CN 115196905A CN 202210161834 A CN202210161834 A CN 202210161834A CN 115196905 A CN115196905 A CN 115196905A
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- Prior art keywords
- agent
- waterproofing
- composite concrete
- auxiliary material
- concrete
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- 239000004567 concrete Substances 0.000 title claims abstract description 55
- 238000004078 waterproofing Methods 0.000 title claims abstract description 51
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 89
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000008367 deionised water Substances 0.000 claims abstract description 13
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 13
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 10
- 239000002270 dispersing agent Substances 0.000 claims abstract description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 18
- 239000000178 monomer Substances 0.000 claims description 18
- 239000002202 Polyethylene glycol Substances 0.000 claims description 12
- 229920001223 polyethylene glycol Polymers 0.000 claims description 12
- 239000003054 catalyst Substances 0.000 claims description 9
- 239000007800 oxidant agent Substances 0.000 claims description 9
- 230000001590 oxidative effect Effects 0.000 claims description 9
- 239000013008 thixotropic agent Substances 0.000 claims description 9
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims description 8
- 229910052912 lithium silicate Inorganic materials 0.000 claims description 8
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 8
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 6
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 6
- 229920002582 Polyethylene Glycol 600 Polymers 0.000 claims description 6
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 5
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 230000001112 coagulating effect Effects 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical group [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000001509 sodium citrate Substances 0.000 claims description 3
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 3
- 235000011083 sodium citrates Nutrition 0.000 claims description 3
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 3
- 235000012207 sodium gluconate Nutrition 0.000 claims description 3
- 239000000176 sodium gluconate Substances 0.000 claims description 3
- 229940005574 sodium gluconate Drugs 0.000 claims description 3
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 3
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 3
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 3
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000011148 porous material Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000003487 anti-permeability effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000001550 time effect Effects 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
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
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/65—Water proofers or repellants
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention is applicable to the technical field of concrete waterproofing agents, and provides a composite concrete waterproofing agent for structural self-waterproofing, a preparation method and application thereof, wherein the composite concrete waterproofing agent comprises the following components in percentage by mass: 30% of mixed material D, 25% of dispersing agent, 5% of defoaming agent and 40% of deionized water; the mixed material D is prepared from a main material A, an auxiliary material B and an auxiliary material C in proportion; the invention provides a composite concrete waterproof agent for structural self-waterproofing and a preparation method and application thereof.
Description
Technical Field
The invention relates to the technical field of concrete waterproofing agents, in particular to a composite concrete waterproofing agent for structural self-waterproofing, and a preparation method and application thereof.
Background
The concrete is a non-homogeneous material, belongs to a porous structure from the aspect of microstructure, and is distributed with a plurality of micro pores with different sizes, and the micro pores are mutually connected to form a water seepage channel, so the water seepage is easy to occur, the concrete pores can be divided into construction pores and construction pores, and the construction pores are mainly capillary pores, residual pores and gel pores.
The concrete or reinforced concrete structure with certain waterproof capacity is called as concrete structure self-waterproof in the form of the compactness of the concrete itself, and the additive waterproof concrete is produced by the development of various additives.
Most of the existing concrete waterproofing agents on the market have poor seepage-proofing effect, short seepage-proofing time effect and single effect, and cannot meet the use requirements.
Disclosure of Invention
The invention aims to provide a composite concrete waterproofing agent for self-waterproofing of a structure, and a preparation method and application thereof, and aims to solve the problems that most concrete waterproofing agents in the prior art are poor in seepage-proofing effect, short in seepage-proofing time effect and single in effect.
In order to achieve the purpose, the invention provides the following technical scheme: a composite concrete waterproofing agent for structural self-waterproofing comprises the following components in percentage by mass:
30% of mixed material D, 25% of dispersing agent, 5% of defoaming agent and 40% of deionized water;
the mixed material D is prepared from a main material A, an auxiliary material B and an auxiliary material C in proportion;
the main material A, the auxiliary material B and the auxiliary material C comprise the following components:
main material A: the components and the contents are, by mass percentage, 20% of polyethylene glycol monomethyl ether monomer MPEG-2000, 10% of polyethylene glycol monomer PEG600, 5% of methacrylic acid monomer, 2% of oxidant, 0.5% of catalyst and 62.5% of deionized water;
and (3) auxiliary materials B: uniformly mixing lithium silicate and nano silica sol according to the proportion of 2;
and (3) auxiliary material C: the thixotropic agent, the glycerol and the triethanolamine are mixed according to the weight ratio of 1.
Preferably, the ratio of the main material A to the auxiliary material B to the auxiliary material C in the mixed material D is 10.
Preferably, the dispersing agent is one of sodium hexametaphosphate, sodium pyrophosphate, sodium tripolyphosphate, sodium citrate and sodium gluconate, and the defoaming agent is polyether modified organic silicon.
Preferably, in the component of the main material A, the oxidant is dilute sulfuric acid, and the catalyst is potassium persulfate.
Preferably, in the auxiliary material B, the modulus of lithium silicate is 3.0-3.4, and the specification of the nano silica sol is 100nm.
Preferably, in the component of the auxiliary material C, the thixotropic agent is nano white carbon black.
A preparation method of a composite concrete waterproofing agent for structural self-waterproofing comprises the following steps:
step (1), preparing a main material A:
uniformly mixing 20% of polyethylene glycol monomethyl ether monomer MPEG-2000, 10% of polyethylene glycol monomer PEG600, 5% of methacrylic acid monomer, 2% of oxidant, 0.5% of catalyst and 62.5% of deionized water, heating to 60-70 ℃, reacting for 1.5h, and cooling to room temperature to obtain a water-reducing component, namely a main material A;
step (2), preparing an auxiliary material B:
uniformly mixing lithium silicate and nano silica sol according to the proportion of 2;
step (3), preparing an auxiliary material C:
mixing a thixotropic agent, glycerol and triethanolamine according to the proportion of 1;
step (4), preparing a mixed material D:
dropwise adding the auxiliary material B and the auxiliary material C into the main material A respectively according to a certain proportion, heating to 50 ℃, reacting for 1.5h, and cooling to room temperature to obtain a finished product of the waterproof modified water reducing agent, namely a mixed material D;
step (5), preparing a finished product of the composite concrete waterproofing agent:
and uniformly coagulating 30% of the mixed material D, 25% of a dispersing agent, 5% of a defoaming agent and 40% of deionized water in a normal-temperature reaction kettle by mass percent to obtain the finished product of the composite concrete waterproofing agent.
The composite concrete waterproofing agent with 1-2% of cementing material content is doped in concrete, and can be used for improving the capillary pore structure in the concrete, sealing the capillary pore channel in the concrete and improving the anti-permeability and waterproofing functions of the concrete.
The invention has at least the following beneficial effects:
the invention provides a composite concrete waterproof agent for structural self-waterproofing and a preparation method and application thereof.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Examples
A composite concrete waterproof agent for structural self-waterproofing comprises the following components in percentage by mass:
30% of mixed material D, 25% of dispersing agent, 5% of defoaming agent and 40% of deionized water;
wherein the dispersant is one of sodium hexametaphosphate, sodium pyrophosphate, sodium tripolyphosphate, sodium citrate and sodium gluconate; the defoaming agent is polyether modified organic silicon;
the mixed material D is prepared from a main material A, an auxiliary material B and an auxiliary material C according to a proportion of 10 to 2, namely the auxiliary material B and the auxiliary material C respectively account for 10 percent and 20 percent of the mass fraction of the main material A;
the main material A, the auxiliary material B and the auxiliary material C comprise the following components:
main material A: the components and the contents are, by mass percentage, 20% of polyethylene glycol monomethyl ether monomer MPEG-2000, 10% of polyethylene glycol monomer PEG600, 5% of methacrylic acid monomer, 2% of oxidant, 0.5% of catalyst and 62.5% of deionized water;
wherein, the oxidant is dilute sulphuric acid, and the catalyst is potassium persulfate;
and (3) auxiliary materials B: the lithium silicate and the nano silica sol are uniformly mixed according to the proportion of 2;
and (3) auxiliary materials C: mixing the thixotropic agent, the glycerol and the triethanolamine according to a ratio of 1;
wherein the thixotropic agent is nano white carbon black.
The preparation method of the composite concrete waterproofing agent for structural self-waterproofing provided by the embodiment comprises the following steps of firstly, dropwise adding the compact components to prepare the waterproof modified compact agent, and then compounding the waterproof modified compact agent with other components to prepare a finished product, wherein the preparation method comprises the following specific steps:
step (1), preparing a main material A:
uniformly mixing 20% of polyethylene glycol monomethyl ether monomer MPEG-2000, 10% of polyethylene glycol monomer PEG600, 5% of methacrylic acid monomer, 2% of oxidant, 0.5% of catalyst and 62.5% of deionized water, heating to 60-70 ℃, reacting for 1.5h, and cooling to room temperature to obtain a water-reducing component, namely a main material A;
step (2), preparing an auxiliary material B:
uniformly mixing lithium silicate and nano silica sol according to the proportion of 2;
step (3), preparing an auxiliary material C:
mixing a thixotropic agent, glycerol and triethanolamine according to the proportion of 1;
step (4), preparing a mixed material D:
dropwise adding the auxiliary material B and the auxiliary material C into the main material A respectively according to a certain proportion, heating to 50 ℃, reacting for 1.5h, and cooling to room temperature to obtain a finished product of the waterproof modified water reducing agent, namely a mixed material D;
step (5), preparing a finished product of the composite concrete waterproofing agent:
and uniformly coagulating 30% of the mixed material D, 25% of a dispersing agent, 5% of a defoaming agent and 40% of deionized water in a normal-temperature reaction kettle by mass percent to obtain the finished product of the composite concrete waterproofing agent.
The composite concrete waterproofing agent with the content of the cementing material being 1-2% is doped in concrete, so that the composite concrete waterproofing agent can be used for improving the capillary structure in the concrete, sealing the capillary channel in the concrete and improving the anti-permeability and waterproofing functions of the concrete.
The product prepared by the embodiment is subjected to relevant performance tests, the prepared composite concrete waterproofing agent has the impermeability grade of over P25, has the performances of reinforcement, crack resistance, retardation, thixotropy, rust resistance and the like, can improve the workability of fresh concrete, reduce the bleeding rate and obviously improve the workability of concrete.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The composite concrete waterproof agent for structural self-waterproofing is characterized by comprising the following components in percentage by mass:
30% of mixed material D, 25% of dispersing agent, 5% of defoaming agent and 40% of deionized water;
the mixed material D is prepared from a main material A, an auxiliary material B and an auxiliary material C in proportion;
the main material A, the auxiliary material B and the auxiliary material C comprise the following components:
main material A: the components and the contents are, by mass percentage, 20% of polyethylene glycol monomethyl ether monomer MPEG-2000, 10% of polyethylene glycol monomer PEG600, 5% of methacrylic acid monomer, 2% of oxidant, 0.5% of catalyst and 62.5% of deionized water;
and (3) auxiliary materials B: uniformly mixing lithium silicate and the nano silica sol according to the proportion of 2;
and (3) auxiliary materials C: the thixotropic agent, the glycerol and the triethanolamine are mixed according to the weight ratio of 1.
2. The composite concrete waterproofing agent for structural self-waterproofing according to claim 1, wherein: the proportion of the main material A, the auxiliary material B and the auxiliary material C in the mixed material D is 10.
3. The composite concrete waterproofing agent for structural self-waterproofing according to claim 1, wherein: the dispersing agent is one of sodium hexametaphosphate, sodium pyrophosphate, sodium tripolyphosphate, sodium citrate and sodium gluconate, and the defoaming agent is polyether modified organic silicon.
4. The composite concrete waterproofing agent for structural self-waterproofing according to claim 1, wherein: in the main material A, the oxidant is dilute sulfuric acid, and the catalyst is potassium persulfate.
5. The composite concrete waterproofing agent for structural self-waterproofing according to claim 1, wherein: in the components of the auxiliary material B, the modulus of lithium silicate is 3.0-3.4, and the specification of the nano silica sol is 100nm.
6. The composite concrete waterproofing agent for structural self-waterproofing according to claim 1, wherein: in the auxiliary material C, the thixotropic agent is nano white carbon black.
7. A process for preparing a composite concrete waterproofing agent for structural self-waterproofing according to any of claims 1 to 6, comprising the steps of:
step (1), preparing a main material A:
uniformly mixing 20% of polyethylene glycol monomethyl ether monomer MPEG-2000, 10% of polyethylene glycol monomer PEG600, 5% of methacrylic acid monomer, 2% of oxidant, 0.5% of catalyst and 62.5% of deionized water, heating to 60-70 ℃, reacting for 1.5h, and cooling to room temperature to obtain a water-reducing component, namely a main material A;
step (2), preparing an auxiliary material B:
uniformly mixing lithium silicate and nano silica sol according to the proportion of 2;
step (3), preparing an auxiliary material C:
mixing a thixotropic agent, glycerol and triethanolamine according to the proportion of 1;
step (4), preparing a mixed material D:
respectively dripping the auxiliary material B and the auxiliary material C into the main material A according to the proportion, heating to 50 ℃, reacting for 1.5h, and cooling to room temperature to obtain a finished product of the waterproof modified water reducing agent, namely a mixed material D;
step (5), preparing a finished product of the composite concrete waterproofing agent:
and uniformly coagulating 30% of the mixed material D, 25% of a dispersing agent, 5% of a defoaming agent and 40% of deionized water in a normal-temperature reaction kettle by mass percent to obtain the finished product of the composite concrete waterproofing agent.
8. The use of the composite concrete waterproofing agent for structural self-waterproofing according to any one of claims 1 to 6, wherein the composite concrete waterproofing agent containing 1 to 2% of a cementitious material is doped in concrete to improve the capillary structure in the concrete, close the capillary channels in the concrete and improve the impermeability and waterproofing functions of the concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210161834.5A CN115196905A (en) | 2022-02-22 | 2022-02-22 | Composite concrete waterproof agent for structural self-waterproofing and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210161834.5A CN115196905A (en) | 2022-02-22 | 2022-02-22 | Composite concrete waterproof agent for structural self-waterproofing and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115196905A true CN115196905A (en) | 2022-10-18 |
Family
ID=83573879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210161834.5A Pending CN115196905A (en) | 2022-02-22 | 2022-02-22 | Composite concrete waterproof agent for structural self-waterproofing and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115196905A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040225093A1 (en) * | 2003-04-10 | 2004-11-11 | Nippon Shokubai Co., Ltd. | Polycarboxylic acid cement dispersant and method for producing concrete secondary product |
| CN101786825A (en) * | 2010-03-23 | 2010-07-28 | 清华大学 | Novel special concrete contraction reducing type compacting agent |
| CN101817655A (en) * | 2010-03-23 | 2010-09-01 | 清华大学 | Novel shrinkage reducing compacting agent special for concrete |
| CN102153313A (en) * | 2011-04-21 | 2011-08-17 | 江苏锋泰建材科技有限公司 | Concrete complex additive |
| CN106565278A (en) * | 2016-11-04 | 2017-04-19 | 浙江省建筑科学设计研究院有限公司 | High-permeability concrete sealed waterproofing agent and preparation method thereof |
-
2022
- 2022-02-22 CN CN202210161834.5A patent/CN115196905A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040225093A1 (en) * | 2003-04-10 | 2004-11-11 | Nippon Shokubai Co., Ltd. | Polycarboxylic acid cement dispersant and method for producing concrete secondary product |
| CN101786825A (en) * | 2010-03-23 | 2010-07-28 | 清华大学 | Novel special concrete contraction reducing type compacting agent |
| CN101817655A (en) * | 2010-03-23 | 2010-09-01 | 清华大学 | Novel shrinkage reducing compacting agent special for concrete |
| CN102153313A (en) * | 2011-04-21 | 2011-08-17 | 江苏锋泰建材科技有限公司 | Concrete complex additive |
| CN106565278A (en) * | 2016-11-04 | 2017-04-19 | 浙江省建筑科学设计研究院有限公司 | High-permeability concrete sealed waterproofing agent and preparation method thereof |
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| Title |
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Application publication date: 20221018 |