贯入法检测夯土材料抗压强度试验研究

摘要

To facilitate the field testing of material strength for rammed earth structures and utilize the existing equip -ment ,the penetration method was proposed as non-destructive test (NDT) method for rammed earth material .According to the penetration tests and the strength tests on rammed earth test blocks ,the relationship between penetration value and strength was investigated .The results indicate that there exists an exponential function between penetration value and test block strength .The special strength formula for measuring the strength of rammed earth material by mortar penetrometer can be obtained .From vertical compression test results of an earth wall ,it can be seen that the proposed method is relia-bile ,convenient ,and has good prospects .%为提高夯土建筑材料强度现场检测的便利性，利用现有仪器设备，提出将夯土材料贯入法作为材料强度的无损检测方法。分别对夯土试块进行贯入试验与强度试验，研究夯土材料贯入值与试块强度之间的规律。试验表明，材料贯入值与试块强度存在指数函数关系，可得到砂浆贯入仪测量夯土材料强度的无损检测专用公式。通过墙体实例测试，该方法可靠，便捷，具有较好的应用前景。