engineering recuitment PGCIL Diploma Trainee Mock Test 2024 Construction Materials and Management Concrete
Which among the following effect makes concrete vulnerable to frost attack and other disturbances, as well as does NOT facilitate removal of formwork in a short period?
1
Delay in freezing and thawing
2
Delay in setting and hardening
3
Freezing and Thawing
4
Freezing of concrete at early age