落锤冲击荷载作用下蒸压加气混凝土的缓冲性能试验研究

The influences of the thickness of specimens and the drop height on the maximun impact force were investigated in impact tests of autoclaved aerated concrete.The test results show that the maximun impact force under a certain impact energy first reduces, then increases as the thickness increases. There is an optimum thickness to minimize the impact force. The formula for calculating the maximun impact force was proposed, by which the calculating results are in good agreement with the test results and the optimum thickness can be derived. During the impact process, the impact energy is converted into the surface energy of the buffer layer material, this surface energy increases first and then decreases with the increase of thickness, and the buffer effect first becomes better and then becomes worse.