Table 4: Analysis results of ultimate load based on ACI 318M-2011 procedures.

Item	Sample	ƒcu, MPa	ρg %	Pu, kN	Increased% Pu
Group 1	C11	30	2%	1487	---
	C12	60	2%	2522	70%
	C13	90	2%	3601	142%
	C14	120	2%	4680	215%
Group 2	C21	30	4%	1783	---
	C22	60	4%	2840	60%
	C23	90	4%	3898	118%
	C24	120	4%	4955	178%
Group 3	C31	30	8%	2464	---
	C32	60	8%	3478	41%
	C33	90	8%	4491	82%
	C34	120	8%	5505	123%