Methods of testing concrete, Method 4.1: Determination of air content of freshly mixed concrete - Measuring reduction in concrete volume with increased air pressure
混凝土试验方法 方法4.1:新拌混凝土含气量的测定-在增加空气压力的情况下测量混凝土体积的减少量
发布日期:
2014-04-04
本标准规定了通过观察空气压力增加时混凝土体积变化来确定新拌混凝土空气含量的方法。
This Standard sets out the method for determining the air content of freshly mixed concrete from observations of the change in volume of the concrete when it is subjected to an increased air pressure.