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Design Method for Mix Proportion of High Performance Concrete Based on Durability

Zeng Zhi-xing

Abstract

The essence of high performance concrete(HPC) durability design is to determine the water-binder ratio(w/b),the cemented material composition and the maximum water consumption that can meet the demand of concrete durability.This paper adopts the formula method to directly design the mixture ratio of HPC concrete by analyzing durability while considering both strength and durability.Based on the deduction of the mathematical relationships of w/b ratio,cemented material composition[(1-φ)ρ_c+φρ_f],unit water consumption and concrete strength(f_(cu)),then design for the mix proportion of HPC concrete results in chloride ion resistance,resistance to sulfate,frost resistance and anti-carbonization durability.

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Key concepts: Durability, Frost (temperature), Carbonization, Materials science, Chloride, Composite material, Metallurgy, Scanning electron microscope