Fatigue Performance Analysis of Emulsified Asphalt Cold Recycled Mixture
To investigate the fatigue performance of emulsified asphalt cold recycled mixture,the semi-circular bending fatigue test(SCB fatigue test)was conducted on CIR-20 emulsified asphalt mixture specimens.The anti-fatigue performance of emulsified as-phalt cold recycled mixture under different stress ratios was thoroughly explored.The study found that the cement dosage has a signifi-cant impact on the fatigue performance of the recycled mixture.Adding 1.5%cement can enhance the crack resistance of emulsified asphalt cold recycled mixture.Under the same stress condition,the addition of cement has a negative impact on the fatigue performance of emulsified asphalt cold recycled mixture,leading to a reduction in fatigue life.Compared to hot mix asphalt mixture,emulsified as-phalt coldrecycledmixture exhibits better anti-fatigue performance under lowstress ratios(<0.35),while its anti-fatigue perform-ance is relatively poorer under high stress ratios(≥0.35).
road engineeringemulsified asphaltcold recycled mixturefatigue performanceSCB fatigue test
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