The test method for compressive strength in GB/T 11969-2020"Test Method for Performance of Autoclaved Aerated Concrete"does not specify in detail the test process when the moisture content is less than 8％,and the methods of each laboratory are not uniform when testing the compressive strength of aerated blocks.By comparing the moisture content of the middle and outside of the aerated block,it can be seen that the internal moisture distribution of the aerated block will be uneven due to operational reasons,resulting in a difference in the measured compressive strength.In order to avoid the above situation,consider removing the process of adding water to control the moisture content.Assuming that there is a fixed relationship between the compressive strength of the aerated block in the dry state and the compressive strength when the moisture content is fixed,that is,f contains=Kf dry,only the coefficient K is required,in the subsequent tests,only the compressive strength of the aerated block in the dry state needs to be determined,and the compressive strength corresponding to the moisture content can be obtained by substituting the coefficient,and the feasibility of the new idea is confirmed by analyzing a large number of test data.
万方数据
维普
