Rust-proof corrosion-resistant non-shrinkage concrete for blast furnace and preparation method thereof

A non-shrinkage, concrete technology, applied in the field of building materials, can solve the problems of high cost and increased risk of use, and achieve the effects of improved corrosion resistance, easy control of construction time, and good workability

Active Publication Date: 2016-09-07
CHINA 19TH METALLURGICAL CORP CHENGDU CONSTR
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  • Abstract
  • Description
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Problems solved by technology

[0008] At present, the domestic market still lacks concrete products with complete functions and excellent comprehensive performance. Many key projects have to spend huge sums of money to import people from abroad. Concrete materials for the construction needs of foundations, frame foundations, equipment foundations and other construction parts have great practical significance

Method used

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  • Rust-proof corrosion-resistant non-shrinkage concrete for blast furnace and preparation method thereof
  • Rust-proof corrosion-resistant non-shrinkage concrete for blast furnace and preparation method thereof
  • Rust-proof corrosion-resistant non-shrinkage concrete for blast furnace and preparation method thereof

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Effect test

Embodiment 1

[0043] 1. Preparation of concrete

[0044] Relying on the general contracting project of No. 1 and No. 2 blast furnace projects of Vietnam Formosa Ha Tinh Iron and Steel Industrial Co., Ltd. By selecting raw materials such as Vietnam's local concrete cement, sand, stone, and admixtures, the concrete mix ratio is designed, mainly by adding a certain amount of rust inhibitor, furnace stone powder and expansion agent to the concrete mix ratio. Because the project is located in Ha Tinh, Vietnam In the coastal area of ​​Qiying County, the geological survey report shows that the groundwater in the blast furnace area contains a large amount of chloride ions and sulfate ions. The high corrosion resistance requirements of buildings in coastal areas can be met by adding rust inhibitors, and the design strength level is C45.

[0045] Table 1 Components and their weight ratios

[0046]

[0047] The raw material cement in the embodiment adopts PCB40 cement (equivalent to domestic commo...

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Abstract

The invention relates to rust-proof corrosion-resistant non-shrinkage concrete for a blast furnace and a preparation method thereof and belongs to the technical field of building materials. The rust-proof corrosion-resistant non-shrinkage concrete comprises, by weight, 240-290 parts of cement, 100-170 parts of hearthstone powder, 160-200 parts of water, 950-1150 parts of crude aggregate, 700-850 parts of fine aggregate, 4-10 parts of a corrosion inhibitor, 2-7 parts of a water reducer and 1-5 parts of an expanding agent. The rust-proof corrosion-resistant non-shrinkage concrete suitable for saline-alkali soil is prepared from specific ingredients according to a ratio, has good workability and high strength, is convenient for construction time control and concrete construction, has a simple formula, saves a lot of cost, can be prepared through simple and easy processes, is free of a mineral admixture and can be promoted and used at home and abroad.

Description

technical field [0001] The invention specifically relates to a rust-resistant, anti-corrosion, non-shrinkage concrete for blast furnaces and a preparation method thereof, belonging to the technical field of building materials. Background technique [0002] For marine buildings, sea sand buildings and buildings in saline-alkali areas, coastal areas or surrounding environments contain a large amount of chloride ions and sulfate ions, which are easy to cause corrosion effects on steel bars and concrete, reduce the alkalinity of concrete, and destroy the passivation 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 the continuous deterioration of the structural function and mechanical properties. For this reason, experts at home and abroad have proposed various measures to improve the anti-corrosion ability of concrete structures, among which adding anti-corrosion agen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/20C04B111/34
CPCC04B28/04C04B2111/20C04B2111/346C04B18/141C04B14/02C04B14/068C04B22/002C04B2103/302C04B2103/0068C04B2103/60
Inventor 陈军超彭钟宋明健李萍曾清富徐本梁曾兆江邓建华
Owner CHINA 19TH METALLURGICAL CORP CHENGDU CONSTR
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