Research Article
Performance Evaluation of Stone Mastic Asphalt and Hot Mix Asphalt Mixtures Containing Recycled Concrete Aggregate
Table 1
Physical properties of RCA.
| | Test | Method | Value | Standard requirement |
| | LA abrasion | ASTM C131 | 24.5 | Below 30% | | Aggregate impact value | BS812: Part 3 | 11.31 | Below 15% | | Aggregate crushing value | BS812: Part 3 | 28.3 | Below 30% | | Flakiness index | BS812: Part 3 | 9.8 | Below 20% | | Angularity number | BS812: Part 3 | 8.40 | Between 6 to 9 | | Elongation index | BS812: Part 3 | 5.35 | Below 20% | | Sand equivalent | AASHTO T176 | 65 | Above 45% | | Water absorption (coarse) | ASTM C 127-07 | 2.69 | — | | Water absorption (fines) | ASTM C 128-07 | 4.28 | — | | Specific gravity (coarse) | ASTM C 127-07 | 2.18 | — | | Specific gravity (fine) | ASTM C 128-07 | 2.42 | — |
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