Table 5 Building materials usage.
Building matrials | Using amount of Project A (ton) | Using amount of Project B′ (ton) | Using amount of Project C (ton) | Using amount of Project D′ (ton) | ||
|---|---|---|---|---|---|---|
Off-site | On-site | Off-site | On-site | |||
Ready-mix concrete | 4259 | 36,399 | 39,059 | 1145 | 9159 | 9835 |
Cement | 0 | 1989 | 2241 | 0 | 462 | 621 |
Sand | 0 | 11,747 | 13,298 | 0 | 3095 | 4859 |
Steel | 277 | 1732 | 1874 | 312 | 1951 | 2154 |
Brick | 0 | 8021 | 9441 | 0 | 6417 | 2614 |
Glass | 0 | 67 | 67 | 0 | 12 | 12 |
