针对传统净浆流动度测试方法灵敏度不高、测试范围窄的问题,设计了一系列不同口径的玻璃管(H管)。通过对不同水灰比、不同掺量减水剂条件下水泥浆体的流变特点的对比分析,得到不同H管对应净浆流动度测试范围和减水剂最佳掺量测试方法。H管不仅灵敏度高、测试范围广,而且还可以反映浆体粘度,是一套比较全面准确的水泥浆体流动性测试方法。 Aiming at the problem of low sensitivity and narrow test range of traditional paste flow test method, a series of glass tubes (H tubes) with different diameters are designed. Through comparative analysis of the rheological characteristics of cement paste with different water-cement ratio and different dosage of water reducer, the test range of the flowability of the corresponding H paste and the best dosage of water reducer were obtained. H tube not only has high sensitivity and wide range of test, but also can reflect the viscosity of slurry. It is a set of more comprehensive and accurate cement slurry fluidity test method.