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Method for high-impermeability concrete material by wet grinding process

A wet grinding process and concrete technology, applied in the application field of waste recycling, can solve the problems of high cost, late strength shrinkage, high noise, etc., and achieve the effects of low production cost, good compactness and resource saving.

Active Publication Date: 2016-07-13
湖北大工防水科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented method uses dry milling techniques for creation of highly impervious materials that are durable but less expensive than traditional methods such as cement or mortar. It also saves on water usage by utilizing excessive amounts of wastes from various industries while maintaining their strength properties. Overall this makes it possible to make stronger buildings more affordably without relying heavily upon fossil fuels.

Problems solved by technology

This patented technical problem addressed in this patents relates to developing highly impervious or strong materials that can be used at reasonable costs without sacrificially compromising their properties. These challengings include reducing manufacturing complexity while maintaining long lifetimes (longitudinal) resistance against corrosion attacks from external sources like rainwater and seawater.

Method used

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  • Method for high-impermeability concrete material by wet grinding process

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Effect test

Embodiment 1

[0029] 1) Weigh 10 parts by weight of fly ash, 30 parts of slag, 0.8 parts of polymerized polyol grinding aid, and 35 parts of water, and place them in a jaw ball mill for ball milling until the specific surface area is 400-1000m 2 / kg, the average diameter of the particles is 1-20 μm, and a slurry is obtained;

[0030] 2) Weigh 5 parts by weight of quartz sand and 5 parts of water and place them in a ball mill for ball milling until the specific surface area is 300-500m 2 / kg, the average diameter of the particles is 10-50 μm, to obtain slurry two;

[0031] 3) Weigh 100 parts by weight of 42.5 parts of ordinary Portland cement, 100 parts of river sand, 200 parts of gravel, 8 parts of rubber powder, 1.0 parts of polycarboxylate water reducer, 1.8 parts of polyol defoamer, 25 parts Parts of water and the first slurry in step 1) and the second slurry in step 2) are placed in a mixer and stirred until they are evenly stirred; a high impermeability concrete material is obtained. ...

Embodiment 2

[0033] 1) Weigh 20 parts by weight of fly ash, 20 parts of slag, 0.5 parts of polymerized polyol grinding aid, and 40 parts of water, and place them in an impact ball mill for ball milling until the specific surface area is 400-1000m 2 / kg, the average diameter of the particles is 1-20 μm, and a slurry is obtained;

[0034] 2) Weigh 10 parts by weight of quartz sand and 5 parts of water and place them in a ball mill for ball milling until the specific surface area is 300-500m 2 / kg, the average diameter of the particles is 10-50 μm, to obtain slurry two;

[0035] 3) Weigh 100 parts by weight of 42.5 Portland cement, 80 parts of river sand, 180 parts of gravel, 3 parts of rubber powder, 0.8 parts of naphthalene-based water reducer, 0.8 parts of polysiloxane defoamer, 25 parts The water and the first slurry in the step 1) and the second slurry in the step 2) are placed in a mixer and stirred until the mixing is uniform; a high impermeability concrete material is obtained.

Embodiment 3

[0037] 1) Weigh 10 parts by weight of fly ash, 10 parts of slag, 0.6 parts of triisopropanolamine grinding aid, and 20 parts of water, and place them in an impact ball mill for ball milling until the specific surface area is 400-1000m 2 / kg, the average diameter of the particles is 1-20 μm, and a slurry is obtained;

[0038] 2) Weigh 8 parts by weight of quartz sand and 5 parts of water and place them in a ball mill for ball milling until the specific surface area is 300-500m 2 / kg, the average diameter of the particles is 10-50 μm, to obtain slurry two;

[0039] 3) Weigh 100 parts by weight of 42.5 parts of ordinary Portland cement, 90 parts of river sand, 160 parts of gravel, 5 parts of rubber powder, 1.0 parts of naphthalene-based water reducer, 1.5 parts of polysiloxane defoamer, 35 parts Parts of water, slurry 1 obtained in step 1) and slurry 2 obtained in step 2) are placed in a mixer and stirred until uniformly stirred; high impermeability concrete material is obtained...

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Abstract

The invention discloses a method for high-impermeability concrete material by wet grinding process, comprising: ball milling 10-30 parts of pulverized coal ash, 10-30 parts of mineral slag, 0.5-0.8 part of a grinding aid and 20-40 parts of water to obtain first slurry; ball milling 5-10 parts of quartz sand and 5 parts of water to obtain second slurry; stirring well 100 parts of cement, 80-100 parts of river sand, 160-200 parts of gravel, 3-8 parts of rubber powder, 0.5-1.0 part of a water reducer, 0.8-1.9 parts of a defoaming agent, 25-35 parts of water, the first slurry and the second slurry.Mineral admixture and quartz sand are treated by wet grinding, grinding particle size is determined based on the theory of close packing, volcanic ash effect and micro-aggregate effect of raw materials are given to full play and in connection with interlocking packing action of modified rubber powder in cement concrete, thus preparing the high-impermeability concrete, and the high-impermeability concrete material is high in compactness, low in energy consumption, low in production cost and widely applicable to building basements, roofs, exterior walls and the like.

Description

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Claims

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Application Information

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Owner 湖北大工防水科技有限公司
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