Method for formulating concrete with permanent stability

Abstract

The invention relates to a method for preparing durable concrete, which is characterized in that the preparation method comprises the following steps: (1) the mixing proportion of the durable concrete is determined; (2) each layer is fabricated according to routine construction requirements and is verified according to relevant standards; (3) the fabricated concrete is tested, verified and maintained finally. The preparation method has the advantages that though adopting the process technology, the solidity of the concrete is improved, the impacts of various harsh environments are resisted, and the anti-cracking and anti-freezing performance of the concrete and the diffusion coefficient of chloride ion are improved and increased; the concrete structure can endure for more than 100 years; the engineering cost, and the curing and maintenance costs are reduced; the emission of CO2, SO2, NO2 and other hazardous gases are reduced.

Description

(1) Technical field: [0001] The invention belongs to the technical field of building materials, in particular to a preparation method of durable concrete. (two) background technology: [0002] Concrete structures are widely used in buildings, highways, bridges, etc. in transportation systems. However, at present, a large number of bridge concrete structures are eroded by the natural environment, and many diseases lead to poor durability, which seriously affects the safety of transportation. Countries all over the world need to invest huge costs for major repairs or reconstruction every year. Europe, the United States, Japan and other countries spend more on their engineering maintenance costs than new construction costs every year. In the bridge projects that have been built in my country for more than ten years, corrosion of steel bars, cracking and spalling of concrete have occurred, and they have to be limited, overhauled or rebuilt. [0003] The deterioration of the c...

AI Technical Summary

Problems solved by technology

The French Road and Bridge Research Center has used standard high-performance (HPC) concrete materials to make various samples. Because it cannot directly reflect the chemical, physical and mechanical properties of the materials used on site and their components, the practicability is not good. At present, my country and other countries in the world still have There is no precedent for the development of high-performance concrete by the "6-layer method"

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