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

Table 7

Standard value of axial concrete tensile strength (MPa) [25].

Strength grade	C15	C20	C25	C30	C35	C40	C45	C50	C55	C60	C65	C70	C75	C80
	1.27	1.54	1.78	2.01	2.20	2.39	2.51	2.64	2.74	2.85	2.93	2.99	3.05	3.11