Feasibility of Reduced Lap-Spliced Length in Polyethylene Fiber-Reinforced Strain-Hardening Cementitious Composite

Table 1

Design of the conventional concrete and SHCC mixtures.

Mixture ID	W/B	f ′c (MPa)	Fibers (%)	Unit weight (kg/m³)
			PE	Cement	Water	Silica fume	EXA	S	G	AE	T
C30	0.50	30	—	350	175	—	—	770	981	—	—
C100	0.18	100		800	160	89	—	546	835	—	—
xxP40/00	0.45	30	1.50	1,075	484	—	—	430	—	—	—
xxP40/10				968	489	—	108	430	—	—	—
xxP80/00	0.19	100	1.50	1409	319	245	—	163	—	33	7
xxP80/10				1268	319	245	141	163	—	33	7

xxP40/00 (mixture ID example): xx = percent of spliced length; P = reinforced fiber type (P is polyethylene fiber); 40 = compressive strength of concrete (40 MPa); 00 = expansive admixture (EXA) replacement level (0%). The other specimen ID “C” is control concrete. W/B = water-to-binder ratio; PE = polyethylene fiber; EXA = expansive admixture; S = sand; G = gravel; AE = air-entraining agent; T = antifoaming agent.