How to make anti-corrosion concrete

A production method and concrete technology, which is applied in the field of ready-made concrete, can solve the problems of affecting the life of concrete, affecting the service life of concrete, and poor corrosion resistance, so as to improve compactness and quality stability, expand the overall competitive advantage, and improve corrosion resistance performance effect

Active Publication Date: 2016-09-28
SLOF YINGHAI IND GRP
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Problems solved by technology

[0002] At present, the salinization of the Bohai Bay area is relatively serious, and the groundwater and soil contain a large number of corrosive ions, which are highly corrosive to concrete and have a great impact on construction projects, underwater projects, underground projects, etc., seriously affecting concrete life
The existing concrete has poor corrosion resistance, which seriously affects the service life of the concrete. It is costly and difficult to produce commercial concrete with sulfate-resistant cement
Ordinary concrete has poor corrosion resistance, high cost, short building life, and poor overall concrete durability

Method used

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Embodiment Construction

[0008] According to hundreds of experiments, the material formula for making anti-corrosion concrete: special cement for commercial concrete-fine aggregate-coarse aggregate-water-special high-efficiency water reducing agent series, the material formula ratio is: per cubic meter of concrete : 300-500kg of special cement for commercial concrete, 700-1000kg of fine aggregate, 800-1100kg of coarse aggregate, water consumption below 180kg, special high-efficiency water reducing agent is 1.7-2.2% of the weight of special cement for commercial concrete. Concrete bulk density: 2350-2450kg / m³, water-binder ratio: 0.35-0.45, sand rate: 0.38-0.53. The preparation method of special cement for ready-made concrete is: grind 20-30% clinker and 4-6% desulfurized gypsum, control the specific surface area between 350-400m² / kg, and then add compound mineral admixture 64-76 %It is mixed by metering and pneumatic stirring and homogenization facilities; SO3: between 2.5-3.0%, particle gradation: 3-...

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Abstract

The invention provides a method for making anti-corrosion concrete. The technical plan is: the material formula for making anti-corrosion concrete is: special cement for commercial concrete + fine aggregate + coarse aggregate + water + special high-efficiency water reducing agent, and the material formula ratio is: concrete per cubic meter: special for commercial concrete Binder 300-500kg, fine aggregate 700-1000kg, coarse aggregate 800-1100kg, water consumption 180kg, special high-efficiency water reducer is 1.7-2.2% of the weight of the special cement for commercial concrete. Concrete bulk density: 2350-2450kg / m³, water-binder ratio: 0.35-0.45, sand rate: 0.38-0.53. It improves the corrosion resistance of concrete, solves the problem of poor concrete durability in the saline-alkali area around the Bohai Sea for many years, reduces the manufacturing cost of commercial concrete, improves the quality of commercial concrete, and is suitable for general promotion and use.

Description

technical field [0001] The invention relates to the technical field of commercial concrete, in particular to a preparation method of corrosion-resistant concrete. Background technique [0002] At present, the salinization of the Bohai Bay area is relatively serious, and the groundwater and soil contain a large amount of corrosive ions, which are highly corrosive to concrete and have a great impact on construction projects, underwater projects, underground projects, etc., seriously affecting concrete life. The corrosion resistance of existing concrete is poor, which seriously affects the service life of concrete. It is costly and difficult to produce commercial concrete with sulfate-resistant cement. Ordinary concrete has poor corrosion resistance, high cost, short building life, and poor overall concrete durability. Contents of the invention [0003] The purpose of the present invention is to provide a commercial concrete with stable quality and good corrosion resistance...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B111/24C04B111/26
Inventor 王洪刚程晓光张夫卫陈侠
Owner SLOF YINGHAI IND GRP
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