Research Article
Preparation and Properties of an Active Cooling Antirutting Asphalt Mixture
Table 1
The main physical parameters of TAP.
| Product | Color | Appearance | Amount of negative ion released/ions·cm3 | Particle size/mesh | Mons’ hardness scale |
| Tourmaline anion powder | Yellow | Powder | >8000 | 2000 | 7.0–7.2 |
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