A preparation method of biocorrosion-resistant concrete with surface adjustment function

A bio-resistant concrete technology, applied in the field of concrete production, can solve the problems of inability to accurately deal with the complex environment of microbial corrosion, and achieve the effect of improving hydration reaction activity, strengthening the skeleton of the cornerstone, and increasing the self-shrinkage strain

Active Publication Date: 2022-03-15
HUBEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, they are all used for microbial corrosion resistance, and these formulations cannot accurately deal with the complex environment of microbial corrosion

Method used

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  • A preparation method of biocorrosion-resistant concrete with surface adjustment function
  • A preparation method of biocorrosion-resistant concrete with surface adjustment function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take 10 parts by weight of silica fume, 15 parts by weight of nano-silica, 450 parts by weight of cement, 15 parts by weight of organic silicon, 800 parts by weight of sand, and 400 parts by weight of gravel. After stirring for 1 min, add 225 parts by weight of water evenly and slowly, and reduce 2 parts by weight of the water agent were stirred, and the concrete of Example 1 was obtained after stirring for 3-4 minutes.

Embodiment 2～8

[0032] 1) Take 10 parts by weight of silica fume, then add 20 parts by weight of trimethoxysilane quaternary ammonium salt, keep stirring mechanically at 40-50°C, react for 4-8 hours, add 6 parts by weight of copper sulfate, add 6 parts by weight of lemon Sodium acid, and finally get the quaternary ammonium salt modified silica fume covering the copper nanoparticles.

[0033] 2) Take 15 parts by weight of nano-silica, add 20 parts by weight of carboxysilane, continuously stir mechanically at 30-40° C., react for 2-4 hours, and centrifuge to obtain carboxyamination-modified nano-silica.

[0034] 3) Take 10-25 parts by weight of modified silica fume obtained in step 1, 10-30 parts by weight of modified nano-silica obtained in step 2, 450 parts by weight of cement, 15 parts by weight of organic silicon, 800 parts by weight of sand, and 400 parts by weight of gravel. After stirring for 1 minute in parts by weight, 225 parts by weight of water and 2 parts by weight of water reducer...

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Abstract

The invention relates to a method for preparing a biocorrosion-resistant concrete with a surface adjustment function. First, silane quaternary ammonium salt and copper ion-modified silica fume are prepared, and then carboxysilane-modified nano-silica is prepared, and the two are used as concrete The admixture produces biocorrosion-resistant concrete. The bio-corrosion-resistant concrete prepared by the invention has simple process and low production cost, and solves the problem that ordinary concrete materials are susceptible to bio-corrosion, and the prepared bio-corrosion-resistant concrete has high compressive strength, chloride ion erosion resistance, and impermeability and biocorrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of concrete production, and in particular relates to a method for preparing biocorrosion-resistant concrete with surface adjustment function. Background technique [0002] Concrete is the most widely used and used civil engineering material in the world today. The characteristics of the concrete structure material itself and the use environment lead to problems such as insufficient durability of the concrete structure, so that deformation cracks, surface shedding, steel corrosion and other diseases are gradually increasing. The formation of microbial corrosion is dynamic, that is, in wet and dry running water erosion, which is mainly the erosion of organic sulfides in sewage, sulfate ions, chloride ions and other corrosive substances, and the promotion of corrosion by microbial metabolites. In addition, it suffers from more severe carbonation and hydraulic penetration. Compared with ordinary projects, proj...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B111/20C04B111/27
CPCC04B28/04C04B2111/2092C04B2111/20C04B2111/27C04B2201/50C04B14/06C04B24/42C04B14/02C04B2103/302C04B18/146C04B14/062C04B22/04
Inventor 陈顺徐慧苏英贺行洋张博李韦龙刘巧熊国庆黄震宇陈威王传辉
Owner HUBEI UNIV OF TECH
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