Review Article

Microstructure in Adhesion Development Process and Strength Formation Mechanism in Early Stage of Cold Recycled Mixture with Emulsified Asphalt

Table 4

Effects of influencing factors on CRME [14, 28, 62, 87, 91, 93].

Influencing factorsEffects

Curing temperatureThe high temperature would accelerate curing.

Curing humidityCured in sealed conditions (high humidity) exhibited a slower curing rate and a higher long-term performance.

MaterialsCement dosageIncreasing it would increase the indirect tensile stress (ITS), the high-temperature stability and moisture susceptibility. CRME had better low-temperature cracking resistance with 1%–2% cement.
Emulsified asphalt dosageIncreasing it would increase the resistance against rutting and fatigue.
Water contentThe right amount of water is conducive to the compaction.
Aging degree of aged asphalt of RAPIt has a negative effect on the strength formation.

CompactionThe higher compaction power is beneficial to strength formation.