During mass concreting, which cement is recommended to be used?
Try it first: pick an option, then read the explanation.
Correct answer: B. Low Heat Cement
Recommended Cement for Mass Concreting
Low heat cement is the standard recommendation for mass concreting (dams, thick foundations, large raft slabs). It limits the peak temperature rise during hydration, which reduces the risk of thermal cracking as the concrete cools. Low heat cement achieves this by reducing the proportions of the high-heat clinker compounds (C3A and C3S).
Low Heat Cement — option B.
Key takeaway
Mass concrete → Low heat cement. Less heat = less temperature differential = less thermal cracking.