Silica fume surface course repair material

A technology of repairing materials and silicon powder, which is applied in the field of building materials to achieve the effects of low plastic shrinkage, high bond strength and high strength

Active Publication Date: 2013-01-02
XINJIANG LITIAN JIANYE ENERGY SAVING ENVIRONMENTAL PROTECTION ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of repairing the existing concrete base surface after erosion and damage, and provide a silicon powder surface layer repair material with high strength, waterproof and anti-seepage, anti-salt-alkali erosion and acid rain corrosion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of silica fume surface repair material, according to the above preparation method, 60kg ordinary portland cement, 10kg silica fume, 20kg quartz sand (passing through 40 mesh sieve), 0.3kg polypropylene fiber, 0.3kg hydroxypropyl methylcellulose , 3kg of sepiolite (passed through a 40-mesh sieve), 1kg of naphthalene-based superplasticizer (commercially available) and 2kg of EVA rubber powder.

Embodiment 2

[0030] A kind of silica fume surface repair material, according to the above preparation method, 50kg of ordinary portland cement, 8kg of silica fume, 30kg of quartz sand (through a 60-mesh sieve), 0.5kg of polypropylene fiber, 0.5kg of hydroxypropyl methylcellulose , 4kg of sepiolite (through a 60-mesh sieve), 3kg of naphthalene-based superplasticizer and 3kg of EVA rubber powder.

Embodiment 3

[0032] A kind of silica fume surface repair material, according to the above preparation method, 55kg ordinary Portland cement, 9kg silica fume, 25kg quartz sand (passing through a 70 mesh sieve), 0.4kg polypropylene fiber, 0.4kg hydroxypropyl methylcellulose , 5kg of sepiolite (passed through a 70-mesh sieve), 2kg of naphthalene-based superplasticizer and 2.5kg of EVA rubber powder.

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PUM

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Abstract

The invention discloses a silica fume surface course repair material, comprising by weight 50-60 parts of ordinary portland cement, 8-10 parts of silica fume, 20-30 parts of quartz sand, 0.3-0.5 part of polypropylene fiber, 0.3-0.5 part of hydroxypropyl methyl cellulose, 3-5 parts of sepiolite, 2-3 parts of EVA rubber powder and 1-3 parts of a naphthalene super plasticizer. The silica fume surface course repair material provided by the invention can be applied to rush repair of concrete pavement, bridge, tunnel and airport, and repair and reinforcement of defects like hole, honeycomb and pitted surface in concrete of irrigation works and industrial buildings; and the formed repair layer has good durability and high adhesion strength with concrete base, and can ensure good adhesion to substrate even for the working at height. The silica fume surface course repair material has characteristics of low plastic shrinkage rate, low expansion, high strength, waterproof, impermeability, salt and alkaline corrosion resistance, and acid rain corrosion resistance.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a silicon powder surface layer repairing material for repairing a concrete base. Background technique [0002] With the rapid development of silicon metal and ferrosilicon alloy industry in Xinjiang, the comprehensive utilization of silicon powder as its by-product is imminent. At the same time, Xinjiang has a long winter and more rainy and snowy seasons. Various deicing agents are used together. Whether it is in the construction field or concrete pavement, it is severely eroded by chlorine salts and acid rain, which greatly shortens its service life. Therefore, it is particularly important to develop a surface repair material with high strength, waterproof and impermeability, especially suitable for resisting saline-alkali erosion and acid rain corrosion in Northwest China. Contents of the invention [0003] The purpose of the present invention is to solve the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/72
Inventor 雒刚
Owner XINJIANG LITIAN JIANYE ENERGY SAVING ENVIRONMENTAL PROTECTION ENG CO LTD
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