The air content of concrete has a significant effect on the strength and frost resistance of concrete,therefore,it is very important to control the air content of concrete,and the determination of air content is the key.In this paper,a standard test mode method based on density is proposed to determine the air content of concrete,and the results are compared with those of the traditional air content tester.The results showed that the determination results of the two methods were basically the same,which verified the effectiveness of the standard test mode method;The standard test mode method can be used to determine the air content of concrete with different strength grades,and the application range is wider;In the case of large workload of concrete air content determination,the standard test mode method is more efficient.This method has certain engineering application significance and can be popularized in similar projects.
关键词
混凝土含气量/测定方法/密度/标准试模法
Key words
air content of concrete/determination method/density/standard test mode method