Strength and Durability Performance of Alkali-Activated Rice Husk Ash Geopolymer Mortar

Table 3

7-, 14-, and 28-day compressive strength of geopolymer and control mortar.

Number of days	Compressive strength of geopolymer mortar (MPa)
	Concentration of alkali activator/curing
	7 M		8 M		9 M		10 M		Control
	A	T	A	T	A	T	A	T
7	9	19	13	21	16	22	17	26	10
14	19	27	19	28	22	30	23	31	19
28	34	40	36	41	38.5	43	40.7	45	25

A: ambient curing; T: Thermal curing.