摘要
高延性混凝土是一种具有高延性、高韧性、高抗裂性能、高耐损伤能力和高耐久性的纤维增强水泥基复合材料,近年来被广泛应用于加固工程.但目前国内还没有针对高延性混凝土的统一国家标准或行业标准,仅有相关地方标准和协会标准,并形成了2大标准体系.本文对高延性混凝土在国内的应用技术标准进行了统计,并从标准的适用范围、材料定义、材料指标要求、材料选用、加固计算的利用系数和构造要求等方面对2大标准体系进行了对比和解读,为高延性混凝土的设计应用提供参考.
Abstract
High ductility concrete is a fibre-reinforced cement-based composite material with high ductility,high toughness,high crack resistance,high damage resistance and high durability.It has been broadly used in reinforcement engineering in recent years.However,there are currently no harmonized national or industry standards introduced in China,only the local and association standards,which have formed two standard systems.This paper reviewed statistics on the application technical standards of high ductility concrete in China and compared and interpreted the two standard systems from the aspects of the scope of application,material definition,material index requirements,material selection,utilization coefficient of reinforcement calculation,and constructional requirements,thus providing a reference for peer review.
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