Table 5 gravel raw material quality test results.
From: Research on the properties of polymer stabilized coal gangue materials in rubber powder slag base
Technology index | Test results | Technical requirements | Test methods | |||
|---|---|---|---|---|---|---|
20–26.5 mm | 10–20 mm | 5–10 mm | 0–5 mm | |||
Crushing value (%) | – | 15.9 | – | ≦ 26 | T0316 | |
Apparent relative density | 2.746 | 2.736 | 2.722 | 2.718 | ≧ 2.6 | T0304 |
Water absorption(%) | 0.56 | 0.60 | 0.69 | – | ≦ 2.0 | T0304 |
Needle flake content(%) | 6.3 | 7.5 | 8.1 | – | ≦ 22 | T0312 |
< 0.075 mm particle content (%) | 0.41 | 0.60 | 0.35 | 12.91 | ≦ 2/≦ 15 | T0310 |
