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Back side pressure-resistant waterproof coating material for leaking stoppage and seepage resistance of back side and preparation method thereof

A technology of waterproof coating and water-back surface, which is applied in the field of building waterproof materials, which can solve the problems of easy-aging adhesion of materials, affecting the appearance of buildings, and difficult construction methods, etc., achieves excellent resistance to acidic medium erosion, and improves operational performance , fast drying time

Inactive Publication Date: 2018-11-06
南通科顺建筑新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, plugging with grout usually has the following technical problems: (1) The material is easy to age and the adhesion is not enough: the grout material is generally an organic reactant, and it is prone to aging and damage after a long time, and it is bonded to inorganic substrates such as concrete. The structure is poorer than cement-based materials; (2) Narrow scope of application: it is applicable when leakage points or cracks are obvious; (3) The construction method is difficult: after detecting leakage points or cracks, it is necessary to reasonably design the hole layout plan, select the appropriate grouting hole, then drill the wall, fix the grouting nozzle, and use a high-pressure grouting machine to pour the grouting plugging agent into the interior of the concrete; the quality of the construction personnel is required; (4) The use effect is not good: after grouting Leaving needles, affecting the appearance of buildings

Method used

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  • Back side pressure-resistant waterproof coating material for leaking stoppage and seepage resistance of back side and preparation method thereof
  • Back side pressure-resistant waterproof coating material for leaking stoppage and seepage resistance of back side and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A backwater pressure waterproof coating used for plugging and anti-seepage on the backwater surface, prepared from the following raw materials in parts by weight:

[0040] Portland cement (52.5R Portland cement) 450 parts;

[0041] 400 parts of quartz sand;

[0042] 26.5 parts of VAE rubber powder;

[0043] 8.5 parts of hydrophobic silane-based powder waterproofing agent;

[0044] Coagulant (DENKA SC-1) 25 parts;

[0045] Active masterbatch (Benike 88) 28.5 parts;

[0046] 5 parts of calcium bentonite;

[0047] 3 parts polypropylene fiber;

[0048] 1 part of cellulose ether;

[0049] 2 parts of defoamer;

[0050] 5 parts of inorganic powder pigments.

[0051] The preparation process of the back water pressure waterproof coating for plugging and anti-seepage on the back water surface is as follows:

[0052] (1) According to the formula quantity, Portland cement and quartz sand are accurately weighed and put into the batching bin;

[0053] (2) Accurately weigh V...

Embodiment 2

[0057] A backwater pressure waterproof coating used for plugging and anti-seepage on the backwater surface, prepared from the following raw materials in parts by weight:

[0058] Portland cement (52.5R Portland cement) 410 parts;

[0059] 470 parts of quartz sand;

[0060] 21.5 parts of VAE rubber powder;

[0061] 9.5 parts of hydrophobic silane-based powder waterproofing agent;

[0062] Coagulant (DENKA SC-1) 10.5 parts;

[0063] Active masterbatch (Benike 88) 50 parts;

[0064] 10 parts of calcium-based bentonite;

[0065]5 parts of polypropylene fiber;

[0066] 1 part of cellulose ether;

[0067] 3 parts of defoamer;

[0068] 1 part of inorganic powder pigment.

[0069] The preparation method of the back water pressure waterproof coating for plugging and anti-seepage on the back water surface is the same as that in Example 1.

Embodiment 3

[0071] A backwater pressure waterproof coating used for plugging and anti-seepage on the backwater surface, prepared from the following raw materials in parts by weight:

[0072] Portland cement (52.5R Portland cement) 500 parts;

[0073] 360 parts of quartz sand;

[0074] 50 parts of VAE rubber powder;

[0075] 5 parts of hydrophobic silane-based powder waterproofing agent;

[0076] Coagulant (DENKA SC-1) 48.5 parts;

[0077] 20 parts of active masterbatch (Benike 88);

[0078] 2.5 parts of calcium-based bentonite;

[0079] 5 parts of polypropylene fiber;

[0080] 2 parts of cellulose ether;

[0081] 1 part of defoamer;

[0082] 6 parts of inorganic powder pigments.

[0083] The preparation method of the back water pressure waterproof coating for plugging and anti-seepage on the back water surface is the same as that in Example 1.

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Abstract

The invention discloses a back side pressure-resistant waterproof coating material for leaking stoppage and seepage resistance of a back side and a preparation method thereof. The back side pressure-resistant waterproof coating material is prepared from the following materials in parts by weight: 400 to 500 parts of Portland cement, 350 to 480 parts of sand filler, 20 to 50 parts of latex powder,5 to 10 parts of waterproof agent, 10 to 50 parts of coagulation accelerator, 20 to 50 parts of active master batch, 2 to 10 parts of thixotropic agent, 2 to 5 parts of fiber, 0 to 2 parts of cellulose ether, 1 to 3 parts of defoaming agent and 1 to 10 parts of pigment. The back side pressure-resistant waterproof coating material for the leaking stoppage and the seepage resistance of the back side, disclosed by the invention, is firmly adhered to a fundamental plane and is high in bending strength and compression strength, good in seepage resistance, excellent in aging resistance, long in service life, low in shrinkage rate and absorption rate and excellent in waterproof performance.

Description

technical field [0001] The invention relates to the field of building waterproof materials, in particular, the invention relates to a backwater pressure waterproof coating for plugging and anti-seepage of the backwater surface and a preparation method thereof. Background technique [0002] Houses, basements, municipal engineering and other buildings, because the main body of the building is mostly concrete structure, capillary pores and shrinkage joints are prone to appear during the solidification process of concrete. If the previous waterproofing project is not perfect, or the waterproof layer is damaged, pipeline damage, new Cracks in the wall, etc., will cause leakage in the building. Usually, leakage occurs in the later stage, and the method of plugging the leak on the backside is generally adopted. Nowadays, "grouting plugging" is mostly used for leak plugging on the back surface. Grouting plugging, by drilling and burying grouting nozzles at the leaking cracks, usin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/27
CPCC04B28/04C04B2111/00508C04B2111/27C04B14/06C04B24/2623C04B24/42C04B2103/12C04B14/104C04B16/0633C04B24/383C04B2103/50C04B2103/54C04B2103/0068
Inventor 刘剑洪龚兴宇黄莉恒
Owner 南通科顺建筑新材料有限公司
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