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產品介紹
- Specifications :
| Characteristics | Standards | |
| Specific gravity | Min 2.62 | |
| Bulk Unit weight | Min 1450 kg/m3 | |
| Water absorption | Max 1.2% | |
| Mechanical Properties | ||
| Crushing Value | BS812 : Part 110:1990 | <25% |
| LosAngles Abrasion Test value | ASTM C 131-89 | <26% |
| Ten Percent Fine value | BS882:1992 | >180 kn |
| Elongation Index | BS812 | <30% |
| Flakiness Index | <30% | |
| Flakiness Index + Elongation Index | <50% | |
| Maximum allowable limits of deleterious substance that shall not be exceeded for coarse stone are shown in the following table: | ||
| Clay lumps | 2.00 | |
| Materials passing the 0.075 mm sieve for clay | 0.25 | |
| Materials passing the 0.075 mm sieve for fracture dust | 0.50 | |
| Grading for nominal size coarse stone shall comply with the following ASTM C-33 standard gradation: | ||
| < 05 mm | < 20 % | |
| 05 m – 25 mm | > 65 % | |
| > 25 mm | < 15 % | |