Waterproof coating for underground construction

A waterproof coating and underground construction technology, applied in construction, protective devices, infrastructure engineering, etc., can solve problems such as water leakage, and achieve the effects of increasing strength, ensuring durability, and excellent elongation

Inactive Publication Date: 2013-07-03
JIAXING GUANGXING IND & TRADE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a waterproof coating for underground buildings, which solves the problem of water leakage in existing underground buildings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0042] A preparation method of cross-linked polymer cement waterproof coating, comprising:

[0043] (a) Synthesis:

[0044] S1: Mix diacetone acrylamide and butyl acrylate, and then add sodium lauryl polyoxyethylene sulfate for pre-emulsification; the mass ratio of diacetone acrylamide and butyl acrylate is 1:99, dodecyl polyoxyethylene sulfate The amount of sodium oxyethylene sulfate added is 0.5-2% of the mass of diacetone acrylamide.

[0045] S2: Take the above 1 / 3 pre-emulsified monomer and raise the temperature to 60°C, add the initiator ammonium persulfate to carry out the polymerization reaction, then add the remaining pre-emulsified monomer and the initiator to polymerize at 60°C for 20 minutes to obtain the polymer emulsion.

[0046] (b) adding ammonia water and adipic hydrazide to the polymer emulsion in step (a) for neutralization and activation treatment, and the pH is between 5-7.

[0047] (c) Mix the curing agent adipic hydrazide, quartz sand and cement in a ra...

Embodiment 1

[0050] A waterproof coating for an underground building, comprising a first layer, a second layer and a third layer;

[0051] The coating formulation of the first layer comprises:

[0052] A: High-grade cement: sand: quartz powder, the mass ratio is 1:1:0.2,

[0053] B: latex powder: its quality is 20% of the cement quality,

[0054] C: Accelerator: its mass is 1.5% of the cement mass, and

[0055] D: Strengthening agent: its mass is 2% of the cement mass.

[0056] The coating of the second layer is: one-component polyurethane;

[0057] The coating of the third layer is: cross-linked polymer cement waterproof coating, using the waterproof coating prepared above.

Embodiment 2

[0059] A waterproof coating for an underground building, comprising a first layer, a second layer and a third layer;

[0060] The coating formulation of the first layer comprises:

[0061] A: High grade cement: sand: quartz powder, the mass ratio is 1:1.5:0.4,

[0062] B: latex powder: its quality is 25% of the cement quality,

[0063] C: quick-setting agent: its quality is 2% of the cement quality,

[0064] D: Strengthening agent: its quality is 2% of the cement quality,

[0065] E: Zeolite powder: its mass is 8% of the cement mass, and

[0066] F: Titanium dioxide: its mass is 1% of the cement mass.

[0067] The coating of the second layer is: one-component polyurethane;

[0068] The coating of the third layer is: cross-linked polymer cement waterproof coating, using the waterproof coating prepared above.

[0069] The above-mentioned paints are sprayed in the order of the first layer, the second time, and the third time. Among them, the first layer plays the role of p...

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PUM

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Abstract

The invention relates to waterproof coating for underground construction, which comprises a first layer, a second layer and a third layer, wherein a coating formula of the first layer comprises A: high-grade cement, sand and quartz powder, B: emulsion powder accounting for 20%-25% of cement mass, C: an accelerating agent accounting for1.5%-2% of the cement mass, and D: a reinforcing agent accounting for 2%-2.5% of the cement mass; a coating of the second layer adopts one-component polyurethane; and a coating of the third layer adopts a cross-linking type polymer cement waterproof coating. According to the waterproof coating for the underground construction, the first layer can achieve anti-permeability and leakage stoppage effects in shorter time and plug capillary channels completely; the second layer has excellent elongation and a seamless integrated-film-formation waterproof function, and plugs water from leaking out completely; and the third layer is a protective layer, overcomes the defects that the second layer is prone to scratch, aging and artificial damage and the like, improves the strength of the whole waterproof system, and guarantees the durability of the system.

Description

technical field [0001] The invention relates to the technical field of underground building waterproof structures, in particular to an underground building waterproof coating. Background technique [0002] With the development of the times, the building complex develops in the direction of large-scale, high-tech, multi-functional and intelligent. Due to the current shortage of land, while the building expands to the sky, it also extends to the underground. Such as basements, culverts, tunnels, underground garages, etc. However, the waterproof leakage of underground buildings is different from ordinary building waterproofing, and requires back waterproofing. Existing backside waterproofing generally adopts the mode of grouting, but this kind of mode can only solve temporary difficulties, but the place of grouting does not leak water, and water will continue to leak in other places. [0003] Therefore, it is necessary to develop a waterproof structure for the back of underg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D31/02C04B28/00
Inventor 陈家标
Owner JIAXING GUANGXING IND & TRADE CO LTD
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