Table 1.

Mixture proportions.

Material	Symbol Unit	DB1	DB2	DB3	DBO1	DBO2	DBO3
Cement CEM I 52.5R	C (kg/m3)	596	596	596	596	596	596
Silica fume	M (kg/m3)	149	149	149	59.6	59.6	59.6
Granodiorite 2/8 mm	A (kg/m3)	990	990	990	990	990	990
Quartz sand 0.05/2 mm	S (kg/m3)	500	500	500	500	500	500
Superplasticiser	SP (l/m3)	39	39	39	20	20	20
Water	W (l/m3)	139	139	139	177	177	177
Steel fibre	ST (kg/m3)	-	78	156	-	78	117
	VST (%)	-	1	2	-	1	1.5
Polypropylene fibre	PP (kg/m3)	-	2.3	4.5	-	0.5	1
	VPP (%)	-	0.25	0.5	-	0.05	0.1