Effect of Elevated Temperatures on Mortar with Naturally Occurring Volcanic Ash and Its Blend with Electric Arc Furnace Slag

Table 1

Grain size distribution of fine aggregate (EN 196-1 and ISO 679:2009).

Sieve number	Sieve size (mm)	Weight retained (g)	Weight retained (%)	Cumulative passing (%)	Cumulative retained (%)
3/8 inch	9.5	0	0	100	0
Number 4	4.75	0	0	100	0
Number 8	2.36	0	0	100	0
Number 16	1.18	134	26.8	73.2	26.8
Number 30	0.600	179	35.8	37.4	62.6
Number 50	0.300	49	9.8	27.6	72.4
Number 100	0.150	98.8	19.76	7.84	92.16
Pan		39.2	7.84	0	—
Fineness modulus (FM) = (0 + 0 + 0 + 26.8 + 62.6 + 72.4 + 92.16)/100 = 2.54.