掌握硫铅酸盐水泥的膨胀性能，对灌注作业成效具有重要作用。生产厂对水泥膨胀率的测定，系按照国家标准水泥物理性能检验方法进行。其仪器设备与操作工艺，均比较复杂。这里介绍一种简易测式 Grasp the expansion of the performance of the lead-lead cement, the perfusion operation has an important role. The determination of the expansion rate of cement plant, in accordance with the national standard cement physical performance test methods. Its equipment and operating processes, are more complex. Here is a simple test