Effect of Chopped Basalt Fibers on the Mechanical Properties and Microstructure of High Performance Fiber Reinforced Concrete

Table 4

Mixture proportion of the HPFRC mixes.

Concrete type	Mix ingredients (kg/m^3)						Basalt fiber (%)*	Specimen label	High range water reducing admixture (superplasticizer)
	Cement	Mineral admixture	Fine aggregate (FA)	Coarse aggregate (CA)		Water
				<10 mm	10 to 20 mm
							0	P-0	Variable, target slump 75 ± 10 mm
Palin concrete	450	0					1	PB-1*
							2	PB-2
							3	PB-3
							0	S-0
Silica fume concrete	405	45 (silica fume)	670	500	600	180 (w/c = 0.4)	1	SB-1
							2	SB-2
							3	SB-3
							0	P-0
Metakaolin concrete	405	45 (metakaolin)					1	MB-1
							2	MB-2
							3	MB-3

Term “P” represents “Plain” concrete that is prepared by using 100% cement and “B” represents Basalt fiber, whereas number “1” after hyphen represents 1% fiber volume of the Basalt fibers.
Note: 1 mm = 0.03937 in. and 1 kg/m³ = 0.06243 lb/ft³.