Experimental study of micro/macro crack development and stress-strain relations of cement-based composite materials at elevated temperatures

By Y. Fu, Y. Wong, Chi-Sun Poon, C. Tang, P. Lin. 2004

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Study on mechanism of thermal spalling in concrete exposed to elevated temperatures (2011, methodology): “Fu et al. [ 31 ] firstly conducted a real-time observation of the thermal cracking process during the heating-up process with using a high-temperature SEM, and proposed a thermal damage equation of concrete based on damage mechanics and mesoscopic mechanics [32].”
Evaluation of pore structures and cracking in cement paste exposed to elevated temperatures by X-ray computed tomography (2013, background): “The significance of these features in assessments of heated concrete has led engineers to evaluate changes in themechanical properties [3–10], color [11–14], evolution of cracking [10,15–21], and spalling [10,22–29] of fire-damaged concrete in relation to various temperatures, and to develop methods”
Properties of Concrete at Elevated Temperatures (2014, background): “The slowdown in thermal expansion in the 600–800C range is attributed to the loss of chemically boundwater in hydrates, and the increase in expansion above 800C is attributed to a softening of concrete and excessive micro- and macrocrack development [77].”