Standard wastage of construction materials
1) Cement -1%
2) Reinforcement Steel - 3%
3) Structural Steel -10% wastage in plats and 5%wastage in other steel section.
4) Course Aggregates - 2.5%
5) Fine Aggregates - 2.5%
6) Formwork - 5%
7) Wood work and Joinery
Wastage in timber
a) Wastage in converting round logs into square sleepers - 20%
b) Wastage in converting squared sleepers into large scantlining - 10%
c) Wastage in converting squared sleepers into fillets /boarding - 12 to 30%
d) Wastage in cutting timber in stock sizes to required finished lengths -5%
e) Wastage in planing clean swan timber into finished sizes - 5 to 8%
1) Cement -1%
2) Reinforcement Steel - 3%
3) Structural Steel -10% wastage in plats and 5%wastage in other steel section.
4) Course Aggregates - 2.5%
5) Fine Aggregates - 2.5%
6) Formwork - 5%
7) Wood work and Joinery
Wastage in timber
a) Wastage in converting round logs into square sleepers - 20%
b) Wastage in converting squared sleepers into large scantlining - 10%
c) Wastage in converting squared sleepers into fillets /boarding - 12 to 30%
d) Wastage in cutting timber in stock sizes to required finished lengths -5%
e) Wastage in planing clean swan timber into finished sizes - 5 to 8%