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Anti-corrosion concrete and preparation method thereof

A concrete and anti-corrosion technology, which is applied in the field of building materials, can solve the problems of complex preparation process, etc., and achieve the effect of simple formula, saving a lot of cost and good workability

Inactive Publication Date: 2016-09-28
CHINA 19TH METALLURGICAL CORP CHENGDU CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its anti-corrosion performance is mainly achieved by adding a rust inhibitor and water-reducing agent to the fiber concrete, and setting an anti-corrosion resin layer on the solid pile, and its preparation process is complicated.

Method used

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  • Anti-corrosion concrete and preparation method thereof
  • Anti-corrosion concrete and preparation method thereof
  • Anti-corrosion concrete and preparation method thereof

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preparation example Construction

[0033] The invention also provides a method for preparing anti-corrosion concrete.

[0034] Specifically, the coarse aggregate, fine aggregate, cement and rust inhibitor are added to the concrete mixer and mixed uniformly. At the same time, the water reducing agent is added to the concrete mixing water and mixed evenly, and then the water and water reducing agent mixed liquid are added to the In the concrete mixer, after fully mixing for 1 to 2.5 minutes, take it out, and obtain a kind of corrosion-resistant concrete in coastal areas after construction.

Embodiment 1

[0038] 1. Concrete preparation

[0039] Relying on the general contracting project of No. 1 and No. 2 blast furnace engineering of Vietnam Formosa Ha Tinh Steel Industrial Co., Ltd. The concrete mix ratio design is carried out by selecting local Vietnamese concrete cement, sand, stone, admixtures and other raw materials, mainly by adding a certain composition of rust inhibitor to the concrete mix ratio, because the project is located in the coastal area of ​​Qiying County, Ha Tinh Province, Vietnam The geological survey report shows that the groundwater in the blast furnace area contains a large amount of chloride and sulfate ions. The high corrosion resistance requirements of coastal buildings can be achieved by adding rust inhibitors. The design strength level is C40.

[0040] According to the technical scheme, after optimization of the mix ratio, according to the distribution ratio of each group of K1~K5 in Table 1, weigh the cement with a metering scale, 5~20mm continuous grade...

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Abstract

The invention relates to anti-corrosion concrete and a preparation method thereof, and belongs to the technical field of building materials. The anti-corrosion concrete is prepared from the following components in parts by weight: 1 part of cement, 0.35 part-0.49 part of water, 2.32 parts-2.63 parts of a coarse aggregate, 1.85 parts-2.2 parts of a fine aggregate, 0.012 part-0.024 part of a rust inhibitor, and 0.004 part-0.009 part of a water reducing agent. With adopting of specific components and ratio, the concrete meeting anti-corrosion characteristics of coastal regions is prepared, has the advantages of good workability, high strength, convenience in control of the construction time, and convenience in concrete construction; the formula is simple, a lot of costs are saved, the preparation method is simple and easy to implement, mineral admixtures are not required, and the anti-corrosion concrete can be promoted and applied in Vietnam and Chinese coastal regions.

Description

Technical field [0001] The invention specifically relates to an anti-corrosion concrete and a preparation method thereof, and belongs to the technical field of building materials. Background technique [0002] For offshore constructions, sea sand constructions and buildings in saline-alkali areas, the coastal areas or the surrounding environment contain a large amount of chloride and sulfate ions, which are prone to corrosive effects on steel bars and concrete, reduce the alkalinity of concrete, and destroy the passive film on the surface of steel bars. , Causing corrosion and expansion of steel bars, further leading to cracking and spalling of the concrete protective layer, and continuous deterioration of structural functions and mechanical properties. For this reason, domestic and foreign experts have proposed various measures to improve the anti-corrosion ability of concrete structures. Among them, adding rust inhibitors to concrete is an effective measure that is economical, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/02C04B20/00C04B111/20
CPCC04B28/04C04B20/0076C04B2111/20C04B2201/50
Inventor 陈军超彭钟曾清富邓建华翟方刘雍贵
Owner CHINA 19TH METALLURGICAL CORP CHENGDU CONSTR