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| Calculate the rate of 1m3 of concrete | |||||
| Concrete Gade 40 (1kg cement : 1.16kg sand : 2.45kg agg) | |||||
| Details: | |||||
| Cement (density, 1350 kg/m3) | RM200.00/tonne | ||||
| Sand (density 1550kg/m3) | RM60.00/tonne | ||||
| Aggregate (density 1400kg/m3) | RM70.00/tonne | ||||
| Labour contant for mixing | 2.75hrs/m3 | ||||
| Labour constant for carry and pour | 1.75hrs/m3 | ||||
| Labour constat for compaction | 0.75hrs/m3 | ||||
| Labour's wage per day | RM24.00 | ||||
| Wastage | 50% | ||||
| Profit | 15% | ||||

1. Justify the types and sizes of material for:
i. Water supply pipe in building
ii. Waste water pipe in building
2. Justify the importance of pipes in industrial structure related to environment.
i. Determine the selection of pipe sizes, materials for clean water distribution system and waste water collection.