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

Table 2

Mix proportions of mortars.

Set	Mix proportions	W/b	Cement (kg/m^3)	CaCO3 whisker (kg/m^3)	Fly ash (kg/m^3)	Sand (kg/m^3)	Water (kg/m^3)	Superplasticizer (L/m^3)
1	C0 (control)	0.4	500	0	0	1375	200	0.37
	C5	0.4	475	25	0	1375	200	0.43
	C10	0.4	450	50	0	1375	200	0.47
	C15	0.4	425	75	0	1375	200	0.54
	C20	0.4	400	100	0	1375	200	0.59
2	C0F30	0.4	350	0	150	1375	200	0.23
	C5F30	0.4	325	25	150	1375	200	0.25
	C10F30	0.4	300	50	150	1375	200	0.28
	C15F30	0.4	275	75	150	1375	200	0.31
	C20F30	0.4	250	100	150	1375	200	0.39

Note: C and F represent CaCO₃ whisker and fly ash, respectively.