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Inactivation, sterilization and high-corrosion-resistance double-fiber modified repair mortar and preparation method thereof

A fiber modification and corrosion-resistant technology, applied in the field of civil engineering, can solve the problems of polymer mortar such as short life, easy degradation cost, etc., and achieve significant engineering application value, good easy dispersibility, improved erosion resistance and self-healing ability Effect

Active Publication Date: 2022-05-06
XIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide inactivated and sterilized high-corrosion-resistant double-fiber modified repair mortar. Aiming at the corrosion problem of cement-based materials in the current deteriorating environment, in order to repair the eroded structure and improve the protection ability of the eroded structure, currently, the market is mostly used. Polymer anti-corrosion mortar is used for repairing, but due to the problems of short life, easy degradation and high cost of polymer mortar

Method used

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  • Inactivation, sterilization and high-corrosion-resistance double-fiber modified repair mortar and preparation method thereof
  • Inactivation, sterilization and high-corrosion-resistance double-fiber modified repair mortar and preparation method thereof
  • Inactivation, sterilization and high-corrosion-resistance double-fiber modified repair mortar and preparation method thereof

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Embodiment

[0034] The specific coordination is shown in the following table 1

[0035] Table 1 Mortar mix ratio

[0036]

[0037] (1) Wash and dry ordinary river sand until the moisture content is less than 0.3%, and filter with 80-mesh sieve. When making anti-corrosion mortar, weigh each material according to the required configuration amount, and take part of the fine sand and water to break up the fibers. Add about 15 grams of water per kilogram of sand, and knead the sand to evenly moisten it. (If the moisture content is too large, the fiber "agglomeration" will be aggravated; if it is too small, the "fluffing" situation will occur). Mix the fiber into the wet sand and rub it evenly for later use;

[0038] (2) According to each cubic meter of mortar, take a small amount of water and mix into 4.5kg of water reducing agent, 1kg of plastic retaining agent, 0.5kg of titanium dioxide, 0.6kg of sodium methyl silicate and stir evenly for later use;

[0039](3) For each cubic meter of...

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Abstract

The invention discloses inactivated and sterilized high-corrosion-resistance double-fiber modified repair mortar which is specifically prepared from the following components according to a mass ratio: 400kg of cement mixed sand per 300kg, 4.5 kg of a water reducing agent, 1kg of a plastic retaining agent, 1.5 kg of basalt, 0.6 kg of polypropylene, 0.3 kg of copper sulfide, 0.5 kg of titanium dioxide, 60kg of mineral powder, 10kg of silica fume, 50kg of quartz sand, 0.6 kg of sodium methyl silicate, 6kg of inorganic aluminate and 106kg of water. The invention also discloses a preparation method of the inactivated bactericidal high-corrosion-resistance double-fiber modified repair mortar, titanium dioxide and copper sulfide are added, and titanium dioxide and copper sulfide have the effects of filling pores and inhibiting or killing bacteria and microorganisms on the surface of the mortar; the basalt and the polypropylene fiber are added, so that the corrosion resistance and the construction performance of the mortar can be improved. The mortar can well repair and protect a concrete material in a biological and inorganic matter dual corrosion environment.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to an inactivated and sterilized high-corrosion-resistant double-fiber modified repair mortar. [0002] The invention also relates to a preparation method of inactivated and sterilized high-corrosion-resistant double-fiber modified repair mortar. Background technique [0003] Concrete is the most widely used in civil engineering due to its good mechanical properties and low price. Due to the diversity of service environments of engineering structures, when encountering harsh environments such as ocean, saline soil, and low-temperature freeze-thaw, concrete materials are corroded by various corrosive media, mainly including acids and salts. When the service environment of concrete contains corrosion When exposed to medium, the chemical components in the concrete will react with salt or acid to form soluble substances or loose substances, which will damage the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B24/42C04B22/14C04B22/08C04B22/06C04B16/06C04B14/46C04B111/20C04B111/27C04B111/34
CPCC04B28/00C04B22/06C04B22/14C04B14/4643C04B16/0633C04B24/42C04B22/08C04B2111/2092C04B2111/27C04B2111/343C04B2111/20C04B2201/50C04B2111/00017C04B14/06C04B2103/302C04B2103/30C04B18/146C04B18/141Y02W30/91
Inventor 王振山徐吉宾卢俊龙李晓蕾李爱国
Owner XIAN UNIV OF TECH
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