Experimental Study on the Thermal Shock Cracking of Cement Mortar

Authors

  • Tingting Wu

DOI:

https://doi.org/10.56028/aetr.3.1.1024

Keywords:

Temperature; Heat shock; Mortar; Crack

Abstract

This paper explores the influence of heat shock on the cracking mode of cement mortar after experiencing different high temperatures (300℃, 400℃, 500℃, 600℃). Through the test, the paper reveals the crack law of cement mortar due to heat shock after experiencing different high temperatures, and the general relationship between different high temperatures and crack number, crack length, and crack width is analyzed and discussed. The test results show that the critical temperature of cement mortar cracking is 380℃, and when the initial high temperature exceeds 500℃, the crack pattern begins to appear hierarchical structure, and the characteristic performance of its hierarchy is more obvious with the increase of temperature. Moreover, the number of cracks, crack length and crack width gradually increase as the initial high-temperature increases.

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Published

2023-02-09