Research Article
Utilization of Six Sigma in Quality Improvement of Recycled Aggregates Concrete
Table 4
Mix proportion by weight of the mixes used in the preliminary DOE program.
| | Mix | Cement | Water | Normal coarse aggregate (1/2) | Normal coarse aggregates
(3/4) | Normal coarse aggregates
(3/8) | Recycled coarse aggregates (1/2) | Recycled coarse aggregates (3/4) | Recycled coarse aggregates (3/8) | Normal fine aggregates | Recycled fine aggregates |
| | 1 | 5.52 | 11.04 | 5.6 | 5.6 | 5.6 | 1.8 | 1.8 | 1.8 | 2.5 | 7.5 | | 2 | 5.52 | 11.04 | 5.6 | 5.6 | 5.6 | 1.8 | 1.8 | 1.8 | 7.5 | 2.5 | | 3 | 5.52 | 11.04 | 1.8 | 1.8 | 1.8 | 5.6 | 5.6 | 5.6 | 2.5 | 7.5 | | 4 | 5.52 | 11.04 | 1.8 | 1.8 | 1.8 | 5.6 | 5.6 | 5.6 | 7.5 | 2.5 | | 5 | 4.6 | 6.6 | 5.6 | 5.6 | 5.6 | 1.8 | 1.8 | 1.8 | 2.5 | 7.5 | | 6 | 4.6 | 6.6 | 5.6 | 5.6 | 5.6 | 1.8 | 1.8 | 1.8 | 7.5 | 2.5 | | 7 | 4.6 | 6.6 | 1.8 | 1.8 | 1.8 | 5.6 | 5.6 | 5.6 | 2.5 | 7.5 | | 8 | 4.6 | 6.6 | 1.8 | 1.8 | 1.8 | 5.6 | 5.6 | 5.6 | 7.5 | 2.5 |
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