水泥凝结时间测定方法及测定设备的研究概述  

Research overview of methods and equipment for measuring cement setting time

作　　者：杨溟鑫 唐好建 邢德进 苏敦磊 YANG Mingxin;TANG Haojian;XING Dejin;SU Dunlei(School of Civil Engineering,Shandong Jiaotong University,Jinan 250357,China)

机构地区：[1]山东交通学院交通土建工程学院,山东济南250357

出　　处：《实验技术与管理》2024年第12期91-103,共13页Experimental Technology and Management

基　　金：国家自然科学基金青年科学基金项目(52208265);山东省教育教学研究青年课题(2023JXQ024)。

摘　　要：凝结时间是衡量水泥性能的重要指标,对保证施工质量和进度、确保建筑物的安全性以及降低施工成本具有重要意义。水泥凝结时间的测定通常按照GB/T 1346—2011《水泥标准稠度用水量、凝结时间、安定性检验方法》进行,但受设备、环境条件及操作人员技术水平等因素的影响,采用标准方法测得的水泥凝结时间往往存在精确度低、误差大等问题,新的测定方法和设备成为迫切需求。该文综述了现有水泥凝结时间的测定方法及相关设备情况,以期为水泥行业从业者和科研人员按需选择合适的测定方法提供有益参考,为新方法、新设备的研发提供思路借鉴。[Objective]Setting time is one of the important indicators to measure the performance of cement,which is of great significance in ensuring construction quality and progress,ensuring the safety of buildings,and reducing construction costs.The determination of cement setting time is usually carried out in accordance with GB/T 1346-2011“Test Methods for Water Consumption,Setting Time,and Stability of Cement Standard Consistency”.However,due to factors such as equipment,environmental conditions,and the technical level of operators,the cement setting time measured using standard methods often has problems such as low accuracy and large errors.New measurement methods and equipment have become an urgent need.This article reviews the existing methods and related equipment for measuring the setting time of cement,in order to provide useful references for practitioners and researchers in the cement industry to choose appropriate measurement methods according to their needs,and to provide ideas for the research of new methods and equipment.[Methods]With the development and advancement of technology,new methods and equipment for measuring the setting time of cement are constantly emerging.In terms of testing methods,experts and scholars have established a corresponding relationship between testing parameters and cement hydration stages based on the essence of the cement hydration process,and innovated methods such as ultrasonic transmission,resistivity,and hydration heat;In terms of testing equipment,experts and scholars have continuously optimized and innovated based on the testing principle of needle puncture method,gradually realizing the automation and full automation of Vicat apparatus,and developing various forms of cement automatic setting time measuring instruments.In addition,some experts and scholars have proposed the primary battery method for magnesium phosphate cement,providing ideas for determining the setting time of special cement.However,regardless of the method,it has improved the accuracy and precision

关 键 词：水泥 凝结时间 测定方法 测定设备 测试原理 

分 类 号：TQ172.1[化学工程—水泥工业]