本文介绍了用静态应变仪及应变片测定石灰粉煤灰试件在不同压力下的应变值,以计算求得泊松比的方法。文中介绍了试件的制备、仪具设备的规格及性能,详细介绍了测试和计算的方法、步骤,以及试验结果分析,并附有实例,可供道路及材料试验技术人员参考。 In this paper, the static strain gauge and strain gauge are used to measure the strain at different pressures of lime-fly ash specimen to calculate the Poisson’s ratio. This paper introduces the preparation of the specimen, the specifications and the performance of the equipment, introduces the methods and steps of the test and calculation, and the analysis of the test results in detail, with examples for the reference of road and material testing technicians.