Concrete waterproof agent

A technology of concrete waterproofing agent and ferric ammonium sulfate, which is applied in the field of concrete waterproofing agent, can solve the problems of reducing concrete shrinkage, large difference in properties of organic compounds, reducing the number of micro gaps and blocking gaps, etc., to achieve good waterproof and crack resistance performance and Anti-aging performance, low dosage, and simple construction process

Pending Publication Date: 2019-07-19
张郁文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ferric chloride waterproofing agent recommended by GB50119-2013 immediately and completely generates a large amount of Fe(OH)3 colloids at the moment of adding water, but at this time the concrete structure has not yet formed, and the beneficial Fe(OH)3 colloids are not used to block later concrete. The micro-cracks formed; although expansive materials can cause beneficial expansion of concrete, they cannot decisively reduce the number of micro-cracks and block the gaps; the properties of organic compounds and concrete inorg

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A concrete waterproofing agent, which is made of the following raw materials in parts by weight: 29 parts of ferric ammonium sulfate; 3.6 parts of glacial acetic acid; 4.4 parts of 8-hydroxyquinoline; 24 parts of sodium pyrosulfate.

Embodiment 2

[0027] A concrete waterproofing agent is prepared from the following raw materials in parts by weight: 9.7 parts of ferric ammonium sulfate; 1.2 parts of glacial acetic acid; 1.4 parts of 8-hydroxyquinoline; and 8 parts of sodium pyrosulfate.

Embodiment 3

[0029] A concrete waterproofing agent, which is made of the following raw materials in parts by weight: 9.8 parts of ferric chloride; 3.6 parts of glacial acetic acid; 4.4 parts of 8-hydroxyquinoline; 24 parts of sodium pyrosulfate.

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PUM

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Abstract

The invention provides a concrete waterproof agent, which is prepared from the following raw materials by weight: 1-60 parts of ammonium ferric sulfate, 1-30 of glacial acetic acid, 1-40 parts of 8-hydroxyquinoline, and 1-50 parts of sodium pyrosulfate. According to the present invention, the waterproof agent has good adaptability to concrete, has advanced and reasonable waterproof mechanism, andcan generate iron hydroxide colloid at the appropriate timing of cement hydration, wherein the colloid can be generated at the micro-gap, and block the gap, and has characteristics of good waterproofand anti-crack performance, good aging resistance, high anti-penetration strength and environmental protection.

Description

technical field [0001] The invention relates to a waterproofing agent, in particular to a waterproofing agent for concrete. [0002] technical background [0003] The present invention relates to the field of concrete. There are a large number of micro-cracks inside the concrete, which is the essential property of concrete. All kinds of waterproofing agents before the present invention have not taken effective measures to block the micro-cracks and fundamentally solve the problem of concrete leakage. The ferric chloride waterproofing agent recommended by GB50119-2013 immediately and completely generates a large amount of Fe(OH)3 colloids at the moment of adding water, but at this time the concrete structure has not yet formed, and the beneficial Fe(OH)3 colloids are not used to block later concrete. The micro-cracks formed; although expansive materials can cause beneficial expansion of concrete, they cannot decisively reduce the number of micro-cracks and block the gaps; the ...

Claims

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Application Information

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IPC IPC(8): C04B24/12C04B103/65
CPCC04B40/0039C04B2103/65C04B22/142C04B24/04C04B22/14C04B24/12C04B28/02C04B22/147C04B22/149C04B22/16C04B24/128C04B2103/0014C04B22/04
Inventor 张郁文
Owner 张郁文
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