基于压电超声传感器的水泥水化原位监测  

In Situ Monitoring of Cement Hydration Based on Piezoelectric Ultrasonic Sensors

作　　者：刘燕云 秦磊[1] 赵鹏 孙杰[3] LIU Yanyun;QIN Lei;ZHAO Peng;SUN Jie(College of Civil Engineering and Architecture,University of Jinan,Jinan 250022,China;Scientific Research Office,The Palace Museum,Beijing 100009,China;Jinan First Construction Group Co.,Ltd.,Jinan 250100,China)

机构地区：[1]济南大学土木建筑学院,山东济南250022 [2]故宫博物院科研处,北京100009 [3]济南一建集团有限公司,山东济南250100

出　　处：《测试技术学报》2025年第2期148-154,共7页Journal of Test and Measurement Technology

基　　金：国家自然科学基金资助项目(52108214)。

摘　　要：水泥水化进程对水泥基材料后期性能起着至关重要的作用,因此有必要对水泥水化进程进行深入研究。基于超声波技术设计并制备了一种驱动接收一体化的埋入式压电超声传感器并进行性能测试,可将其应用于对水泥水化的连续原位监测中。实验结果表明,通过对传感器多维度的性能测试可以确保其在水泥水化进程的监测中提供可靠、准确的数据,基于该传感器的超声波最大幅值的变化趋势可以反映水泥水化凝结程度,最大幅值变化阶段与维卡仪测得初终凝时间基本符合。该研究不仅为混凝土凝结检测提供一种新的角度与方法,还可以为优化混凝土的性能提供科学依据。The hydration process of cement plays a crucial role in the later performance of cementitious materials,so it is necessary to carry out an in-depth discussion and research on the hydration process of cement.Based on ultrasonic technology,a buried piezoelectric ultrasonic transducer with an integrated driver and receiver was designed and prepared,its performance was tested,and it was applied to the con-tinuous in situ monitoring of cement hydration.The experimental results show that the multidimensional performance test of the transducer can ensure that it can provide reliable and accurate data in monitoring the hydration process of cement,and the trend of the ultrasonic maximum magnitude based on the trans-ducer can reflect the degree of cement hydration and coagulation,and the stage of the change of the maxi-mum magnitude is basically in line with the initial and final coagulation time measured by the Vickers instrument.This study not only provides a new perspective and method for concrete coagulation detection but also provides a scientific basis for optimizing the performance of concrete.

关 键 词：传感器 压电 水泥水化 无损检测 

分 类 号：TU528[建筑科学—建筑技术科学]