Experimental Study on Compressive and Flexural Performances of Polypropylene Fiber-Reinforced Concrete

Table 6

The CFEC, CCEC, ECEC, CEC, FCEC, and CTI values of PC and PPFRC at 14, 28, and 60 days of curing.

Parameters	Group
	PC	PPFRC-0.6	PPFRC-0.9	PPFRC-1.2	PPFRC-1.5
14 days
(kN)	253.3	260.88	285.60	270.17	267.82
(kN)	297.9	304.93	344.33	322.53	317.57
CFEC (kN·s)	6534.64	6771.21	8092.59	7253.51	7116.87
CCEC (kN·s)	2775.97	2892.76	3998.34	3429.96	3285.14
ECEC (kN·s)	9310.61	9663.97	12080.93	10683.47	10402.01
CEC (kN·s)	10065.01	10657.21	13425.79	11852.86	11554.81
FCEC (kN·s)	754.79	993.24	1344.86	1169.39	1152.80
CTI (-)	1.54	1.57	1.66	1.63	1.62
28 days
(kN)	275.60	292.50	315.91	298.04	289.53
(kN)	332.85	357.92	391.96	368.25	350.34
CFEC (kN·s)	7459.30	8490.33	9900.24	8781.66	8283.73
CCEC (kN·s)	3891.77	4628.63	5898.43	5077.61	4279.97
ECEC (kN·s)	11351.07	13118.96	15798.67	13859.27	12563.45
CEC (kN·s)	12057.93	14168.84	17008.35	14912.78	13709.21
FCEC (kN·s)	706.86	1049.44	1209.68	1053.54	1145.76
CTI (-)	1.62	1.67	1.72	1.70	1.65
60 days
(kN)	290.11	330.00	323.59	310.16	298.15
(kN)	347.02	413.14	400.11	379.04	356.28
CFEC (kN·s)	8419.61	10863.61	10401.19	9593.42	8869.85
CCEC (kN·s)	4004.58	6747.31	59530.88	5187.46	4233.33
ECEC (kN·s)	12424.19	17610.92	16355.07	14780.88	13103.18
CEC (kN·s)	13234.84	18755.04	17666.69	15988.49	14468.74
FCEC (kN·s)	810.65	1144.09	1311.62	1207.61	1365.53
CTI (-)	1.57	1.73	1.70	1.67	1.63