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Novel silicate cement waterproof agent

A technology of portland cement and waterproofing agent, which is applied in the field of building materials, can solve the problems of reducing water absorption, and achieve the effects of reducing water absorption, short demoulding time, and less strength loss in the later stage

Inactive Publication Date: 2016-12-07
ZHUODA NEW MATERIALS TECH GRP WEIHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a new type of Portland cement waterproofing agent, which can reduce the size of the bubbles and uneven foaming, make the foam fine, and can improve the strength and reduce the water absorption rate.

Method used

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  • Novel silicate cement waterproof agent
  • Novel silicate cement waterproof agent
  • Novel silicate cement waterproof agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A novel portland cement waterproofing agent, which is composed of calcium chloride, triethanolamine, sodium hydroxide, sodium stearate, cellulose ether and plant cellulose film; said calcium chloride, triethanolamine, hydrogen The parts by weight of sodium oxide, sodium stearate, cellulose ether and plant cellulose film are respectively 1 part, 0.05 part, 1 part, 0.05 part, 1 part and 1 part; Methyl cellulose; the preparation method of described plant cellulose film, comprises the following steps:

[0023] (1) Using cassava distiller's grains as raw material, the plant cellulose is obtained through extraction;

[0024] The extraction is alkaline extraction, including: drying cassava distiller's grains → rolling → scouring with lye → dehydration → immersion in sodium carbonate solution → dehydration → dilute acid treatment and washing → dehydration → immersion in sodium carbonate solution → dehydration → dilute acid Process washing→water washing→dehydration→drying to ob...

Embodiment 2

[0029] A novel portland cement waterproofing agent, which is composed of calcium chloride, triethanolamine, sodium hydroxide, sodium stearate, cellulose ether and plant cellulose film; said calcium chloride, triethanolamine, hydrogen The parts by weight of sodium oxide, sodium stearate, cellulose ether and plant cellulose film are respectively 3 parts, 0.1 part, 3 parts, 0.1 part, 5 parts and 10 parts; Described cellulose ether is hydroxypropyl Methyl cellulose; the preparation method of described plant cellulose film, comprises the following steps:

[0030] (1) Using cassava distiller's grains as raw material, the plant cellulose is obtained through extraction;

[0031] The extraction is alkaline extraction, including: drying cassava distiller's grains → rolling → scouring with lye → dehydration → immersion in sodium carbonate solution → dehydration → dilute acid treatment and washing → dehydration → immersion in sodium carbonate solution → dehydration → dilute acid Process ...

Embodiment 3

[0036] A novel portland cement waterproofing agent, which is composed of calcium chloride, triethanolamine, sodium hydroxide, sodium stearate, cellulose ether and plant cellulose film; said calcium chloride, triethanolamine, hydrogen The parts by weight of sodium oxide, sodium stearate, cellulose ether and plant cellulose film are respectively 2 parts, 0.08 part, 2 parts, 0.07 part, 2 parts and 5 parts; Described cellulose ether is hydroxypropyl Methyl cellulose; the preparation method of described plant cellulose film, comprises the following steps:

[0037] (1) Using cassava distiller's grains as raw material, the plant cellulose is obtained through extraction;

[0038] The extraction is alkaline extraction, including: drying cassava distiller's grains → rolling → scouring with lye → dehydration → immersion in sodium carbonate solution → dehydration → dilute acid treatment and washing → dehydration → immersion in sodium carbonate solution → dehydration → dilute acid Process...

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PUM

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Abstract

The invention belongs to the technical field of building materials, and particularly relates to a novel silicate cement waterproof agent which is composed of, by weight, 1-3 parts of calcium chloride, 0.05-0.1 part of triethanolamine, 1-3 parts of sodium hydroxide, 0.05-0.1 part of sodium stearate, 1-5 parts of cellulose ether and 1-10 parts of plant cellulose membrane. The novel silicate cement waterproof agent enables silicate cement to set quickly and to foam uniformly, can lower water absorption rate and cause little later strength loss. The silicate cement waterproof agent enables the silicate cement to be short in demolding time and less prone to causing mold collapse. The silicate cement waterproof agent can lower water absorption rate of the silicate cement and causes little later strength loss to the silicate cement.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a novel portland cement waterproofing agent. Background technique [0002] Concrete early strength agent is one of the earliest admixture varieties used in the history of admixture development. So far, people have developed a variety of early-strength admixtures other than chloride and sulfate, such as nitrite, chromate, etc.; and organic early-strength agents, such as triethanolamine, calcium formate, urea, etc. And on the basis of the early strength agent, a variety of composite admixtures are produced and applied, such as early strength water reducer, early strength antifreeze and early strength pumping agent. Although the early strength agent has a long history of production and application, with the deepening of people's understanding of the potential hazards of chloride ions, sulfate ions, nitrate ions and alkali metal ions to concrete performance an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B103/65
CPCC04B40/0039C04B2103/65C04B22/124C04B24/122C04B22/062C04B24/04C04B24/383C04B28/04
Inventor 杨卓舒孙吉利
Owner ZHUODA NEW MATERIALS TECH GRP WEIHAI CO LTD
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