Effect of Calcium Carbonate Whisker and Fly Ash on Mechanical Properties of Cement Mortar under High Temperatures

Table 1

Chemical compositions of raw materials (wt.%).

Oxides	CaO	SiO2	Al2O3	Fe2O3	MgO	SO3	CO2	Na2O	K2O	LOI
Cement	59.42	19.93	4.88	4.31	2.02	2.80	—	1.14	0.82	4.68
Fly ash	4.86	61.43	22.60	5.45	1.04	0.16	—	0.72	1.23	2.51
Whisker	54.93	0.29	0.11	0.07	2.14	0.31	42.07	—	—	—