大粒径骨料混凝土抗氯离子性能快速实验的电量综合法

在沿海的水利工程中,为降低混凝土温升,防止混凝土裂缝,通常采用大粒径骨料混凝土(最大粒径为40~80mm)。而目前的混凝土抗氯离子性能快速实验方法(电量法和RCM法等),通常限定骨料最大粒径为25mm,这对推广应用大粒径骨料抗氯盐高性能混凝土造成了很大障碍。为解决这一问题,华南理工大学建筑学院在电量综合法的基础上,提出了适用于大粒径骨料混凝土的抗氯离子性能快速实验的电量综合法,并通过实验研究确定了其评价指标。

The rapid chloride migration synthesis method for prediction of the chloride penetration resistance of Large-particle-size aggregate concrete

For reduce the concrete temperature rise and avoid the cracking of concrete,large-particle-size aggregate concrete was used in coastal hydraulic engineering usually,the maximum size of aggregate is 40mm to 80mm.The existing methods for prediction of the chloride penetration resistance of concrete,such as Rapid Chloride Permeability Test(RCPT) and Rapid Chloride Migration Method(RCM),only can be used in concrete with the maximum size of aggregate is 25mm.This is a problem for spread the large-particle-size aggregate anti-chloride high-performance-concrete.For solve this problem,the Rapid Chloride Migration Synthesis Method for prediction of the chloride penetration resistance of large-particle-size aggregate concrete was present at the basis of Rapid Chloride Migration Synthesis Method by South China University of Technology and the evaluating indicator of it was defined by experiment research.