Table 4.
Comparison of estimated DW with that reported by demolition contractors (unit: ton).
| Waste Type | Project A | Project B (Monitored) | |||||
|---|---|---|---|---|---|---|---|
| Estimated in This Study | Reported | Reported | Estimated in This Study | ||||
| mineral waste | concrete | 9563 | 37,645 | 46,842 | 16,381 | 16,880 | 6282 |
| block | 6695 | 8773 | |||||
| brick | 13,908 | 1088 | |||||
| mortar | 6251 | 461 | |||||
| roofing tile | 1228 | 276 | |||||
| timber | 671 | 195 | 256 | 262 | |||
| plastics | 377 | 198 | 24 | 557 | |||
| glass/ceramic | 570 | - | - | no data | |||
| metals | 421 | Not reported | Not reported | 617 | |||
| Soil | 1029 | - | - | 228 | |||
| Slate | 137 | 106.2 | Not reported | 18 | |||
| household waste | 62 | - | - | 29 | |||
| mixed waste | - | 1151 | 1183 | - | |||
| total | 40,911 | 48,492 | 17,844 | 18,591 | |||