Research Article

Study on the Contact Stress Distribution Model of Asphalt Mixture Particles

Table 3

Performance index of fine aggregate.

Test projectUnitTechnical requirementsTest results

Apparent relative densityg/cm3≥2.52.922
Sand equivalent%≥6078
Sediment concentration (<0.075 mm)%≤30.8
Firmness (>0.3 mm)%≤123.4