Research Article
Laboratory Investigation into Early-Age Strength Improvement of Cold Recycled Asphalt Mixture Containing Asphalt Emulsion and Cement
| | Index | Test result | Requirement |
| | Particle surface electric charge | Cationic | Cationic | | Emulsifier content (%) | 3.0 | — | | Asphalt content (%) | 63.0 | >62 | | Water content (%) | 34 | — | | Evaporation residue | | Penetration (25°C, 100 g, 5s)/0.1 mm | 69.5 | 50–300 | | Ductility (15°C, 5 cm/min) (cm) | 65.5 | >40 | | Softening temperature (°C) | 49.5 | — | | Storage stability (%) | | 1 d | 0.1 | <1 | | 5 d | 1.3 | <5 |
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