Highly-effective anti-cracking waterproofing agent and production method thereof

A waterproofing agent and anti-cracking technology, which is applied in the field of anti-cracking waterproofing agent, can solve the problems of high cost and material consumption, crack resistance, bending resistance, impact resistance and poor weather resistance and durability, so as to improve the later strength, reduce bleeding, Effect of durability improvement

Active Publication Date: 2009-07-01
俞锡贤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the crack-resistant concrete configured with ordinary waterproofing agent, expansion agent, air-entraining agent or water-reducing agent has poor crack resistance, flexural resistance, impact resistance, weather resistance, and durability, resulting in repeated treatment of leakage in Chinese buildings. No, it costs a lot of money

Method used

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  • Highly-effective anti-cracking waterproofing agent and production method thereof
  • Highly-effective anti-cracking waterproofing agent and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1, a kind of anti-crack waterproofing agent, its component and weight content are: activated zeolite powder 62%, silica fume 5%, calcium oxide 4%, magnesium oxide 4%, anhydrous sodium sulfate 7%, cement-based infiltration 5% crystallization masterbatch, 3% sodium lauryl sulfate, 3% high-strength and high-elastic modulus polyvinyl alcohol fiber and 7% naphthalene-based high-efficiency water reducer.

[0035] The specific requirements for the above components are as follows:

[0036]Activated zeolite powder is obtained by grinding clinoptilolite with a pore size of 400 nanometers to 150 mesh, and then removing crystal water at an ultra-high temperature of 800°C. The high-strength and high-elastic-modulus polyvinyl alcohol fiber has a diameter of 18 μm and a length of 8 mm. Silica fume is 7000 mesh silica fume.

[0037] The production method of above-mentioned anti-crack waterproofing agent is to carry out following steps successively:

[0038] 1), uniformly ...

Embodiment 2

[0041] Embodiment 2, a kind of anti-crack waterproofing agent, its component and weight content are: 60% of activated zeolite powder, 13% of silica fume, 3% of calcium oxide, 7% of magnesium oxide, 4% of anhydrous sodium sulfate, cement-based infiltration 3% crystalline masterbatch, 2.0% sodium dodecylbenzenesulfonate, 2% high-strength and high-elastic modulus polyvinyl alcohol fiber, and 6% naphthalene-based superplasticizer.

[0042] The specific requirements for the above components are as follows:

[0043] Activated zeolite powder is obtained by grinding mordenite with a pore size of 500 nanometers to 200 mesh, and then removing crystal water at an ultra-high temperature of 850°C. The high-strength and high-elastic-modulus polyvinyl alcohol fiber has a diameter of 19 μm and a length of 10 mm. Silica fume is 9000 mesh silica fume.

[0044] The production method of above-mentioned anti-crack waterproofing agent is to carry out following steps successively:

[0045] 1) Mix...

Embodiment 3

[0048] Embodiment 3, a kind of anti-crack waterproofing agent, its component and weight content are: activated zeolite powder 70%, silica fume 6%, calcium oxide 6.5%, magnesium oxide 3%, anhydrous sodium sulfate 3%, cement-based infiltration 2% crystalline masterbatch, 1% silane-based composite material, 3.5% high-strength and high-elastic-modulus polyvinyl alcohol fiber, and 5% naphthalene-based high-efficiency water reducer.

[0049] The specific requirements for the above components are as follows:

[0050] Activated zeolite powder is obtained by grinding clinoptilolite with a pore size of 600 nanometers to 250 mesh, and then removing crystal water at an ultra-high temperature of 900°C. The high-strength and high-elastic-modulus polyvinyl alcohol fiber has a diameter of 20 μm and a length of 12 mm. Silica fume is 10000 mesh silica fume.

[0051] The production method of above-mentioned anti-crack waterproofing agent is to carry out following steps successively:

[0052] ...

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Abstract

The invention discloses a anticracking water proofer, which comprises the following steps: 1) allocating component and mass content as 60%-76% activatable zeolitic powder, 5%-15% silica ash, 3%-8% calcium oxide, 3%-8% magnesium oxide, 3%-8% anhydrous sodium sulfate, 2%-6% cement group osmosis crystallization masterbatch, 1. 0%-3. 0% silane coupling agent, 2%-4% high-strength high elasticity modulus polyethelene alcohol fibre and 5%-8% naphthalene system highly effective dehydragent; mixing the activatable zeolitic powder and the silane coupling agent; proceeding modified reaction; getting modified powder; 2) cooling the modified powder; adding into the silica ash, calcium oxide, magnesium oxide, anhydrous sodium sulfate, cement group osmosis crystallization masterbatch and naphthalene system highly effective dehydragent; mixing; getting mixture; 3) putting the mixture into zero gravity agitator; adding into high-strength high elasticity modulus polyethelene alcohol fibre; stirring to non-cluster. This invention possesses good dewatering property and high crack resistance.

Description

technical field [0001] The invention relates to an admixture applied to concrete, in particular to a crack-resisting and waterproofing agent. Background technique [0002] Protecting buildings and structures from moisture and water intrusion is important for building durability. For concrete and masonry structures, the presence and migration of moisture is often an important cause of undesirable changes in the properties of the structure. At the same time, moisture, as an important medium for transferring soluble components inside the structure, can also cause damage to the structural performance of concrete and masonry. For example, carbonation of concrete and mortar, corrosion of rebar, freeze-thaw damage, and mold in walls are all related to the presence and migration of water. In recent years, when building walls adopt self-insulation system or make composite insulation layer on the outside of the wall to play a good role in thermal insulation, but these must solve the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/40C04B24/38C04B14/04C04B14/06C04B22/14C04B16/06C04B14/36
CPCC04B40/0039
Inventor 俞锡贤
Owner 俞锡贤
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