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用废轮胎橡胶粉取代陶粒混凝土中的砂制作橡胶粉陶粒混凝土墙板,采用摆锤式冲击加载方式和放置承压垫块施加荷载的方式分别研究了墙板在不同影响因素下的抗冲击性能和局部抗压性能。结果表明:掺加废轮胎橡胶粉可以改善普通陶粒混凝土的脆性,橡胶粉陶粒混凝土墙板在抗冲击试验中表现出明显的塑性破坏特征;随着厚度的增加,墙板的抗冲击承载力和局部抗压承载力都增大;橡胶粉掺量增加,墙板的抗冲击承载力降低;墙板的局部抗压承载力随着承压垫块尺寸的增加而增大;陶粒掺量的降低有助于提高墙板的局部抗压承载力,并且提高幅度随着承压垫块尺寸的增加而增大,最大可达到56.9%;橡胶粉掺量小范围改变对墙板局部抗压承载力的影响不大。
The waste rubber powder was used to replace the sand in the ceramsite concrete to make the rubber powder ceramsite concrete wall plate. The impact resistance of the wall plate under different influence factors was studied by means of the pendulum impact loading method and the load bearing method. Impact performance and local resistance to compression. The results show that the addition of waste tire rubber powder can improve the brittleness of ordinary ceramsite concrete, and the rubber powder ceramsite concrete wall plate shows obvious plastic failure characteristics in impact test. With the increase of thickness, the impact load of wall plate Force and local compressive bearing capacity increase; the content of rubber powder increases, the impact resistance of wallboard decreases; the local compressive bearing capacity of wallboard increases with the size of bearing pad; The decrease of the volume will help to increase the local compressive capacity of the wallboard, and the increase will increase with the increase of the size of the bearing pad, reaching a maximum of 56.9%. The small amount of rubber powder changes the local resistance of the wallboard Pressure bearing capacity has little effect.