High and low temperature test method for measuring thermal expansion coefficient of concrete test block

• Main Authors: LIU XIN, XU RUI, FAN CHANGQI, GUAN YOUHAI, QU SHUANG
• Format: Patent
• Language: Chinese; English
• Published: 03.10.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to a high and low temperature test method for measuring the thermal expansion coefficient of a concrete test block, which comprises a low temperature test method for measuring the thermal expansion coefficient of the concrete test block and a high temperature test method for measuring the thermal expansion coefficient of the concrete test block. The device is simple in structure and convenient to operate, measurement errors caused by temperature strain of materials are reduced, the standard of detecting six concrete test blocks at a time in China is met, the test precision is improved, the test efficiency is greatly improved, and resources are saved. And no fan equipment is installed on the high-low temperature environment thermal dilatometer, so that the experimental error caused by equipment vibration is reduced, and the test precision is improved. 一种测定混凝土试块热膨胀系数的高低温试验方法，包括有测定混凝土试块热膨胀系数的低温试验方法和测定混凝土试块热膨胀系数的高温试验方法，本发明的高低温环境热膨胀仪中的位移测距杆和底板采用了石英材料，减小了因材料的温度应变而导致的测量误差，符合国内一次性检测6个混凝土试块的标准，提高