Mechanical Properties of High-Strength High-Performance Reinforced Concrete Shaft Lining Structures in Deep Freezing Wells

Table 2

Mix ratios of C60, C65, C70, C75, and C80 HSHPC.

Specimen number	Strength grade	Cement : sand : stone : water : mineral admixture (kg)	Cementitious materials (kg)	Water-binder ratio	Sand ratio (%)	Admixture dosage (%)
1	C60	410 : 628.0 : 1166.3 : 151.2 : 130	540	0.280	35	NF1.8
2	C65	410 : 625.5 : 1161.6 : 152.6 : 145	555	0.275	35	NF1.8
3	C70	410 : 620.0 : 1151.4 : 145.6 : 150	560	0.260	35	NF1.9
4	C75	420 : 622.5 : 1156.1 : 144.1 : 145	565	0.255	35	NF2.0
5	C80	430 : 616.6 : 1145.1 : 146.3 : 155	585	0.250	35	NF2.0