Evaluating the Effect of Calcination and Grinding of Corn Stalk Ash on Pozzolanic Potential for Sustainable Cement-Based Materials

Table 3

Mix proportion and compressive strength of CSA-blended cement cubes.

Mix designation	(%), CSA	7 days compressive strength (MPa)	PAI	28 days compressive strength (MPa)	PAI
M0	0	35.25	100.0	39	100.0
CS400	10	21.75	61.7	29.75	76.3
CS500	10	26.51	75.2	37.75	96.8
CS600	10	29.5	83.7	33.25	85.3
CS700	10	18	51.1	20	51.3
CS800	10	17.25	48.9	18.75	48.1

Water/binder = 0.4.