The minimum cube strength of concrete used for a prestressed member, is ________
A. 50 kg/cm2
B. 150 kg/cm2
C. 350 kg/cm2
D. 100 kg/cm2
Answer:C
The minimum cube strength of concrete used for a prestressed member, is ________
A. 50 kg/cm2 B. 150 kg/cm2 C. 350 kg/cm2 D. 100 kg/cm2