CN111960764A - Preparation method of rapid permeation-stopping high-permeability concrete permeation crystallization waterproof coating - Google Patents
Preparation method of rapid permeation-stopping high-permeability concrete permeation crystallization waterproof coating Download PDFInfo
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- CN111960764A CN111960764A CN202010823547.7A CN202010823547A CN111960764A CN 111960764 A CN111960764 A CN 111960764A CN 202010823547 A CN202010823547 A CN 202010823547A CN 111960764 A CN111960764 A CN 111960764A
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- concrete
- crystallization
- rapid
- waterproof coating
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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
- C04B28/04—Portland cements
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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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00508—Cement paints
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses the technical field of waterproof coatings, and particularly relates to a preparation method of a rapid permeation-stopping high-permeability concrete permeation crystallization waterproof coating, wherein a component A has good permeability in concrete, and is polymerized in the concrete to generate an insoluble high-molecular organic silicon crystalline polymer, so that the defect of deep layer of the concrete is overcome, and a good waterproof effect is achieved; the B component calcium ion complexing agent can permeate into concrete to play a role in accelerating cement hydration, the concrete hydration enables the A component and the C component to generate better permeability, and the A component and the C component are brought into defect polymerization crystals in the deep of a concrete base layer along with water; the C component and the A component are matched with each other to realize inorganic crystallization and high-molecular crystallization, the crystallization is rapid, the crystallization amount is large, the compactness of concrete is improved to a large extent, the rapid seepage stopping of the concrete is realized, and meanwhile, the inorganic crystallization and the high-molecular crystallization are mutually interwoven, so that a crystallized substance has certain flexibility, the deep layer defect compensation effect is good, and the water stopping effect is good.
Description
Technical Field
The invention relates to the technical field of waterproof coatings, in particular to a preparation method of a rapid permeation-stopping high-permeability concrete permeation crystallization waterproof coating.
Background
The permeable crystallization waterproof coating is an active substance with a molecular structure of active silicon, has small molecular weight, contains hydrophobic groups and hydrophilic groups, has hydrophilicity larger than hydrophobicity, is soluble in water, does not generate condensation polymerization crystallization in a dry environment, generates condensation polymerization crystallization in a wet environment, and is formed by mixing active silicon, cement, an active inorganic mixture and the like. The concentration of the active aqueous solution is increased to generate polycondensation crystallization, the active property of the crystallization active master batch is dissolved in water during the hydration process of cement or construction on the wet surface of an undried cement product and is dispersed in the cement product along with the water, but the water participates in the hydration reaction of the cement along with the increase of time, and part of the water is volatilized and dissipated, so that the concentration of the active substance aqueous solution is increased to generate polycondensation crystallization. The waterproof function of the permeable crystalline waterproof coating mainly originates from the polymerization reaction of the permeable crystalline waterproof coating, inert macromolecules or macromolecules are polymerized by micromolecules or low molecules with high activity, the water seepage channels of a base layer are blocked, and the high-efficiency waterproof function is achieved.
Disclosure of Invention
The invention aims to provide a preparation method of a rapid permeation-stopping high-permeability concrete permeation crystallization waterproof coating, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of a rapid permeation-stopping high-permeability concrete permeation crystallization waterproof coating comprises the following steps:
step 1: reacting dimethyl silicon dichloride and PEG-4000 in alkaline water to generate polyether modified disilanol, dehydrating and drying the polyether modified disilanol into powder to prepare a component A; the component A is a novel water-soluble high-molecular polymer monomer, has better permeability in concrete, is polymerized in the concrete to generate insoluble high-molecular organosilicon crystalline polymer, makes up the deep defect of the concrete and plays a good role in water resistance;
step 2: selecting a calcium ion complexing agent as a component B; the calcium ion complexing agent can permeate into concrete and catalyze the concrete reaction to serve as a concrete hydration catalyst to accelerate the hydration of cement, the hydration of the concrete enables the component A and the component C to generate better permeability, and the component A and the component C are brought into the defect polymerization crystals in the deep part of a concrete base layer along with water;
and step 3: uniformly mixing the Portland cement, the quartz sand and the nano silicon dioxide to prepare a component C; the component C and the component A are matched with each other to realize inorganic crystallization and high-molecular crystallization, the crystallization is rapid and the crystallization amount is large, the compactness of concrete is improved to a large extent, the rapid seepage stopping of the concrete is realized, and meanwhile, the inorganic crystallization and the high-molecular crystallization are mutually interwoven, so that a crystallized substance has certain flexibility, the deep layer defect compensation effect is good, and the water stopping effect is good;
and 4, step 4: and uniformly mixing the component A, the component B and the component C to prepare the waterproof coating.
Preferably, the molar ratio of dimethyldichlorosilane to PEG-4000 in step 1 is 2: 1.
Preferably, the calcium ion complexing agent in the step 2 is NTA trisodium calcium ion complexing agent. The NTA trisodium calcium ion complexing agent was sodium nitrilotriacetate, purchased from basf, germany.
Preferably, the mass ratio of the portland cement, the quartz sand and the nano-silica in step 3 is 25:25: 1.
Preferably, the mass ratio of the component A, the component B and the component C in the step 4 is 10:7: 500.
The invention has the beneficial effects that: a rapid permeation-stopping high-permeability concrete permeation crystallization waterproof coating preparation method, A component is a novel water-soluble high-molecular polymer monomer, has better permeability in concrete, polymerizes in concrete to generate insoluble high-molecular organosilicon crystalline polymer, makes up the deep defect of concrete, and plays a good waterproof role; the B component calcium ion complexing agent can permeate into concrete and catalyze the concrete reaction to serve as a concrete hydration catalyst to accelerate the hydration of cement, the hydration of the concrete enables the A component and the C component to generate better permeability, and the A component and the C component are brought into the defect polymerization crystals in the deep part of a concrete base layer along with water; the component C and the component A are matched with each other to realize inorganic crystallization and high-molecular crystallization, the crystallization is rapid and the crystallization amount is large, the compactness of concrete is improved to a large extent, the rapid seepage stopping of the concrete is realized, and meanwhile, the inorganic crystallization and the high-molecular crystallization are mutually interwoven, so that a crystallized substance has certain flexibility, the deep layer defect compensation effect is good, and the water stopping effect is good;
the invention improves the compactness of the concrete to a greater extent by triple penetration, realizes quick seepage stopping on the concrete, and simultaneously interweaves inorganic crystals and high polymer crystals, so that the crystal has certain flexibility, the deep defect compensation effect is good, and the water stopping effect is good.
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
step 1: reacting dimethyl silicon dichloride and PEG-4000 in alkaline water in a molar ratio of 2:1 to generate polyether modified disilanol, dehydrating and drying the polyether modified disilanol into powder, and preparing a component A;
step 2: selecting an NTA trisodium calcium ion complexing agent as a component B;
and step 3: uniformly mixing 500 parts of Portland cement, 500 parts of quartz sand and 20 parts of nano silicon dioxide to prepare a component C;
and 4, step 4: and uniformly mixing 20 parts of the component A, 14 parts of the component B and 1000 parts of the component C to prepare the waterproof coating.
According to the national standard GB18445-2001 of the penetration crystallization waterproof coating, the waterproof coating prepared in the embodiment is subjected to a water immersion penetration experiment, and the experiment shows that only three days are needed, the mortar test block coated with the waterproof coating of the embodiment is dried through 3 days, and the upper end of the mortar test block coated with the common waterproof coating is in a wet state within the same time; vertically cutting the mortar test block coated with the waterproof coating and the mortar test block coated with the common waterproof coating, wherein a large amount of crystals are seen at the position 3-4 cm away from the upper surface of the mortar of the waterproof coating mortar test block coated with the embodiment, and the number of the crystals of the mortar test block coated with the common waterproof coating is small;
the mortar test block coated with the waterproof coating of the embodiment and the mortar test block coated with the ordinary waterproof coating are subjected to an anti-seepage pressure experiment, and the experiment shows that the anti-seepage of the mortar test block coated with the waterproof coating of the embodiment reaches 0.85MPa, and the anti-seepage of the mortar test block coated with the ordinary waterproof coating reaches 0.54 MPa.
The experimental data show that the concrete sealing agent disclosed by the invention can improve the compactness of concrete to a greater extent, realize quick seepage stopping of the concrete, make up for deep defects, and has good effect and good water stopping effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 (5)
1. A preparation method of a rapid permeation-stopping high-permeability concrete permeation crystallization waterproof coating is characterized by comprising the following steps: the preparation method comprises the following steps:
step 1: reacting dimethyl silicon dichloride and PEG-4000 in alkaline water to generate polyether modified disilanol, dehydrating and drying the polyether modified disilanol into powder to prepare a component A;
step 2: selecting a calcium ion complexing agent as a component B;
and step 3: uniformly mixing the Portland cement, the quartz sand and the nano silicon dioxide to prepare a component C;
and 4, step 4: and uniformly mixing the component A, the component B and the component C to prepare the waterproof coating.
2. The preparation method of the rapid impermeable and high permeable concrete permeable crystallization waterproof coating according to claim 1, characterized in that: the molar ratio of dimethyldichlorosilane to PEG-4000 in step 1 was 2: 1.
3. The preparation method of the rapid impermeable and high permeable concrete permeable crystallization waterproof coating according to claim 1, characterized in that: in the step 2, the calcium ion complexing agent is NTA trisodium calcium ion complexing agent.
4. The preparation method of the rapid impermeable and high permeable concrete permeable crystallization waterproof coating according to claim 1, characterized in that: in the step 3, the mass ratio of the silicate cement to the quartz sand to the nano silicon dioxide is 25:25: 1.
5. The preparation method of the rapid impermeable and high permeable concrete permeable crystallization waterproof coating according to claim 1, characterized in that: in the step 4, the mass ratio of the component A, the component B and the component C is 10:7: 500.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010823547.7A CN111960764A (en) | 2020-08-17 | 2020-08-17 | Preparation method of rapid permeation-stopping high-permeability concrete permeation crystallization waterproof coating |
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| CN202010823547.7A CN111960764A (en) | 2020-08-17 | 2020-08-17 | Preparation method of rapid permeation-stopping high-permeability concrete permeation crystallization waterproof coating |
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| CN202010823547.7A Pending CN111960764A (en) | 2020-08-17 | 2020-08-17 | Preparation method of rapid permeation-stopping high-permeability concrete permeation crystallization waterproof coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115611563A (en) * | 2022-11-14 | 2023-01-17 | 佛山市鲸砼科技有限公司 | Steam-curing-free ultrahigh-performance concrete premix for municipal bridge |
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|---|---|---|---|---|
| JPS5594972A (en) * | 1978-11-30 | 1980-07-18 | Gen Electric | Silicone resin coating composition |
| CN101003699A (en) * | 2006-09-21 | 2007-07-25 | 董善刚 | Cement based penetration crystallization type water proofing paint |
| CN103553483A (en) * | 2013-10-11 | 2014-02-05 | 王福刚 | Cement-based capillary crystalline waterproof coating and preparation method thereof |
| CN105800994A (en) * | 2016-03-09 | 2016-07-27 | 文登蓝岛建筑工程有限公司 | Compound silicon concrete waterproof agent |
| CN107572968A (en) * | 2017-10-19 | 2018-01-12 | 天津市奇才防水材料有限公司 | A kind of cement based penetration crystallization type water proofing paint and preparation method thereof |
| CN107987647A (en) * | 2017-12-15 | 2018-05-04 | 苏州赛斯德工程设备有限公司 | A kind of water-proofing anticracking coating and preparation method thereof |
| CN108911572A (en) * | 2018-06-20 | 2018-11-30 | 河南阳光防水科技有限公司 | Modified penetrant crystalline waterproofing agent of organosilicon |
| CN108948989A (en) * | 2018-06-15 | 2018-12-07 | 苏州市姑苏新型建材有限公司 | A kind of end silylated polyether water-repellent paint and preparation method thereof |
-
2020
- 2020-08-17 CN CN202010823547.7A patent/CN111960764A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5594972A (en) * | 1978-11-30 | 1980-07-18 | Gen Electric | Silicone resin coating composition |
| CN101003699A (en) * | 2006-09-21 | 2007-07-25 | 董善刚 | Cement based penetration crystallization type water proofing paint |
| CN103553483A (en) * | 2013-10-11 | 2014-02-05 | 王福刚 | Cement-based capillary crystalline waterproof coating and preparation method thereof |
| CN105800994A (en) * | 2016-03-09 | 2016-07-27 | 文登蓝岛建筑工程有限公司 | Compound silicon concrete waterproof agent |
| CN107572968A (en) * | 2017-10-19 | 2018-01-12 | 天津市奇才防水材料有限公司 | A kind of cement based penetration crystallization type water proofing paint and preparation method thereof |
| CN107987647A (en) * | 2017-12-15 | 2018-05-04 | 苏州赛斯德工程设备有限公司 | A kind of water-proofing anticracking coating and preparation method thereof |
| CN108948989A (en) * | 2018-06-15 | 2018-12-07 | 苏州市姑苏新型建材有限公司 | A kind of end silylated polyether water-repellent paint and preparation method thereof |
| CN108911572A (en) * | 2018-06-20 | 2018-11-30 | 河南阳光防水科技有限公司 | Modified penetrant crystalline waterproofing agent of organosilicon |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115611563A (en) * | 2022-11-14 | 2023-01-17 | 佛山市鲸砼科技有限公司 | Steam-curing-free ultrahigh-performance concrete premix for municipal bridge |
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