railway RRB JE (CBT I + CBT II) Mock Test 2024 Construction Materials and Management Miscellaneous Material
As per IS 712 -1984, the lime used for structural purposes (for making mortar and concrete for construction and foundation works) having an initial setting time of 2 hours (minimum) and final setting time of 48 hours (maximum) is :
1
Class F – Silicious Dolomitic lime
2
Class C – Fat lime
3
Class A – Eminently hydraulic lime
4
Class D – Magnesium/Dolomitic lime