Research Article
Experimental Investigation on the Effects of Coffee Husk Ash as Partial Replacement of Cement on Concrete Properties
Table 3
Properties of coarse aggregate.
| | Tests performed | Test result | Test method | Allowable limit | Standard |
| | Unit weight | 1677.5 kg/m3 | ASTM C29 | 1200–1760 | ASTM C33 | | Specific gravity | 2.8 | ASTM C128 | 2.3–2.9 | ASTM C128 | | Absorption | 2% | ASTM C128 | 0.2–2% | ASTM C128 | | Moisture content | 0.86% | ASTM C566 | 0–10% | ASTM C33 |
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