Effect of Expansive Admixtures on the Shrinkage and Mechanical Properties of High-Performance Fiber-Reinforced Cement Composites

Table 4

Summary of compressive strength test results.

EXA (type)	Mixture type	Maximum strength (MPa)				Strain at maximum strength (%)				Elastic modulus (GPa)
		No. 1	No. 2	No. 3	Ave.	No. 1	No. 2	No. 3	Ave.	No. 1	No. 2	No. 3	Ave.
None	Mor-0	85	87	78	84	0.55	0.66	0.46	0.56	26.5	24.9	26.5	26.0
	PE1.5-0	75	71	70	72	0.66	0.55	0.61	0.61	23.5	21.4	21.5	22.1
CSA-K (Type 1)	Mor-10	97	100	96	98	0.77	0.71	0.67	0.72	24.1	24.5	24.4	24.3
	PE1.5-8	81	77	82	80	0.65	—	0.63	0.64	22.9	—	23.0	23.0
	PE1.5-10	85	84	83	84	0.70	0.65	0.69	0.68	22.0	23.5	22.4	22.7
	PE1.5-12	77	81	78	79	0.70	0.73	0.62	0.68	20.7	20.9	21.0	20.9
	PE1.5-14	69	70	84	74	0.54	0.42	0.68	0.55	22.4	22.0	21.9	22.1
CSA-J (Type 2)	Mor-10	95	97	92	95	0.68	0.75	0.67	0.68	25.4	25.2	25.8	25.5
	PE1.5-8	77	78	76	77	0.76	0.72	0.71	0.73	20.9	21.1	21.5	21.2
	PE1.5-10	73	75	76	75	0.71	0.65	0.76	0.71	20.5	21.3	20.1	20.6
	PE1.5-12	69	76	72	72	0.79	0.88	0.75	0.80	20.6	19.6	19.5	19.9
	PE1.5-14	67	68	61	65	0.71	0.65	0.53	0.63	18.6	17.6	18.1	18.1