engineering recuitment BHEL Engineer Trainee Mock Test 2025 Construction Materials and Management Concrete
Lightweight concrete is the concrete having its unit weight varying from:
1
3 kN/m3 to 18.5 kN/m3
2
5 kN/m3 to 25 kN/m3
3
10 kN/m3 to 22 kN/m3
4
4.5 kN/m3 to 20 kN/m3