Test number	Design strength level	Cementitious material (kg/m³)	Fine aggregate (kg/m³)		Machine-made sand substitution rate (%)	Coarse aggregate (kg/m³)	Water (kg/m³)	Water reducing agent dosage (%)
Test number	Design strength level	Cementitious material (kg/m³)	Natural sand	Machine-made sand	Machine-made sand substitution rate (%)	Coarse aggregate (kg/m³)	Water (kg/m³)	Water reducing agent dosage (%)
27	C25	310	750	0	0	1160	150	1.75
28	C25	310	375	375	50	1160	150	1.75
29	C25	310	0	750	100	1160	150	1.75
30	C45	440	325	325	50	1160	140	2.0
31	C45	440	0	650	100	1160	140	2.0
32	C25	300	680	0	0	1240	160	1.35
33	C25	300	340	340	50	1240	160	1.35
34	C25	300	0	680	100	1240	160	1.35