Preparation method of rapid seepage-stopping high-permeability concrete capillary crystalline waterproof coating

A technology of penetrating crystal waterproofing and high permeability, applied in the field of waterproof coatings, can solve the problems of slow seepage control, single crystal material, and poor waterproof effect of concrete, so as to improve concrete compactness, more crystals, and good water stop effect. Effect

Pending Publication Date: 2020-11-20
湖北金森环保建筑材料股份有限公司
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AI Technical Summary

Problems solved by technology

The waterproof effect of permeable crystalline waterproof coatings is mainly derived from its own polymerization reaction. The highly active small molecules or low molecules are polymerized into inert macromolecules or macromolecules, which block the water seepage channels of the base layer to achieve efficient waterproof effect. The existing Osmotic crystalline waterproof coatings have poor penetrability and can only float on the surface of the concrete base for polymerization, but cannot penetrate deeper into the interior of the concrete base to make up for the defects deep in the base. The waterproof effect is not good. less, single crystalline material, slow anti-seepage rate for concrete, and weak anti-seepage ability, so a preparation method for rapid anti-seepage and high-permeability concrete permeable crystalline waterproof coating is proposed

Method used

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Experimental program
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Embodiment

[0017] Step 1: The dimethyl silicon dichloride and PEG-4000 are reacted in alkaline water at a molar ratio of 2:1 to form polyether-modified disilanol, and the polyether-modified disilanol is dehydrated and dried into powder to prepare A component;

[0018] Step 2: Select NTA trisodium calcium ion complexing agent as component B;

[0019] Step 3: Mix 500 parts of Portland cement, 500 parts of quartz sand and 20 parts of nano-silica uniformly to prepare component C;

[0020] Step 4: Mix 20 parts of A component, 14 parts of B component and 1000 parts of C component to prepare waterproof coating uniformly.

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PUM

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Abstract

The invention discloses the technical field of waterproof coatings. The invention relates to the technical field of waterproof coatings, in particular to a preparation method of a rapid seepage-stopping high-permeability concrete capillary crystalline waterproof coating, which comprises the following steps: a component A which has favorable permeability in concrete, and is polymerized in the concrete to generate an insoluble high-molecular organic silicon crystalline polymer, thereby making up the defects of the deep layer of the concrete and playing a favorable waterproof role; a component B,namely a calcium ion complexing agent, which can permeate into concrete to play a role in accelerating hydration of cement, so that the component A and a component C generate relatively good permeability when the concrete is hydrated, and the component A and the component C are brought into deep defects of a concrete base layer along with water to be polymerized and crystallized; the component Cand the component A are matched with each other, inorganic crystallization and macromolecule crystallization are achieved, crystallization is rapid, the crystallization amount is large, the compactness of the concrete is improved to a large extent, rapid seepage stopping of the concrete is achieved, meanwhile, inorganic crystallization and macromolecule crystallization are interwoven, crystals have certain flexibility, the effect of making up deep defects is good, and the water stopping effect is good.

Description

Technical field [0001] The invention relates to the technical field of waterproof coatings, and the specific field is a method for preparing a rapid anti-seepage high-permeability concrete permeation crystalline waterproof coating. Background technique [0002] Permeable crystalline waterproof coating is an active material with a molecular structure of active silicon. It has a small molecular weight and contains both hydrophobic and hydrophilic groups. Its hydrophilicity is greater than hydrophobicity. It is soluble in water and does not undergo condensation polymerization in a dry environment. Crystallization phenomenon, while polycondensation crystallization phenomenon occurs in a humid environment, it is a mixture of active silicon, cement, active inorganic mixture, etc. The concentration of the active aqueous solution increases and polycondensation crystallization occurs. The crystalline active masterbatch is dissolved in the water during the cement hydration process or on th...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B111/27
CPCC04B28/04C04B2111/00508C04B2111/27C04B24/42C04B24/12C04B14/06C04B14/062
Inventor 罗贤全
Owner 湖北金森环保建筑材料股份有限公司
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