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A concrete waterproofing agent

A technology of concrete waterproofing agent and aluminum slag, applied in the field of concrete waterproofing agent, can solve problems affecting concrete durability, cracking, etc., and achieve the effects of low cost, high impermeability strength, and good aging resistance

Active Publication Date: 2016-01-27
GUILIN HUAYUE ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of concrete construction, after the concrete sets and hardens, it is easy to crack due to the restraint of steel bars, which seriously affects the durability of concrete.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Concrete waterproofing agent, made of the following components by weight: 10 parts of aluminum slag, 22 parts of iron slag, 15 parts of silica fume, 1.5 parts of alum, 3.5 parts of calcium chloride, 5 parts of sodium nitrite, 2 parts of potassium aluminum sulfate 1 part, 1 part of sodium alkylsulfonate, 5 parts of calcium phosphate, 1 part of stearic acid, 0.7 part of triethanolamine. During preparation, all components can be uniformly mixed according to conventional techniques in the art.

Embodiment 2

[0019] Concrete waterproofing agent, made of the following components by weight: 15 parts of aluminum slag, 25 parts of iron slag, 5 parts of silica fume, 2.5 parts of alum, 5 parts of calcium chloride, 1 part of sodium nitrite, 5 parts of aluminum potassium sulfate 3 parts, 3 parts of sodium alkylsulfonate, 1 part of calcium phosphate, 2.8 parts of stearic acid, 0.9 parts of triethanolamine. During preparation, all components can be uniformly mixed according to conventional techniques in the art.

Embodiment 3

[0021] Concrete waterproofing agent, made of the following components by weight: 20 parts of aluminum slag, 15 parts of iron slag, 11 parts of silica fume, 5 parts of alum, 1 part of calcium chloride, 3 parts of sodium nitrite, 8 parts of aluminum potassium sulfate 0.5 parts of sodium alkylsulfonate, 3 parts of calcium phosphate, 4.5 parts of stearic acid, and 0.1 part of triethanolamine. During preparation, all components can be uniformly mixed according to conventional techniques in the art.

[0022] Effect:

[0023] Add the concrete waterproofing agent in Examples 1 to 3 to the cement in an amount of 6% to 8% to make concrete and observe that the penetration height ratio is ≤35%, the water absorption loss in 48 hours is ≤25mm, and the compressive strength in 7 days ≥21MPa, 28-day compressive strength ≥29.5MPa.

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Abstract

The invention discloses a concrete waterproofing agent. The concrete waterproofing agent is prepared from the following constituents in parts by weight: 10-20 parts of aluminum slag, 15-25 parts of iron-ore slag, 5-15 parts of silica fume, 1-5 parts of white alum, 1-5 parts of calcium chloride, 1-5 parts of sodium nitrite, 2-8 parts of aluminum potassium sulfate, 0.5-3 parts of alkyl sodium sulfonate, 1-5 parts of calcium phosphate, 1-5 parts of stearic acid, and 0.1-1 part of triethanolamine. The concrete waterproofing agent provided by the invention is simple in formula, good in adaptability to cement, stable in quality, low in cost, good in acid-base resistance and waterproofing crack resistance, high in anti-permeability strength, and good in ageing-resistant performance.

Description

technical field [0001] The invention relates to a concrete external additive, in particular to a concrete waterproofing agent. Background technique [0002] In the process of concrete construction, after the concrete is set and hardened, it is easy to crack due to the restraint of steel bars, which seriously affects the durability of concrete. For this reason, people usually add various external additives in concrete to improve the crack resistance of concrete. Concrete waterproofing agent is one of them. It is used in cement concrete to compensate for shrinkage and prevent concrete from cracking. At present, the development trend of concrete waterproofing agent is to use various industrial waste residues and learn from the production and application technology of other concrete admixtures, and mix materials with special functions and admixture components in the preparation of waterproofing agents to reduce the cost. While reducing the cost, obtain products with superior p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/16C04B103/65
Inventor 尹丹黄煌陈威王恒阮长泰
Owner GUILIN HUAYUE ENVIRONMENTAL PROTECTION TECH CO LTD