چکیده مقاله
Moisture damage of asphalt mixture is one of the key factors of asphalt cracking The aim of this14 study is to investigate the effect of aging on the performance of hot asphalt mixtures and examined15 the improvement of moisture damage performance by using an anti stripping additive via16 mechanism and functional test Two types of aggregates limestone and granite with different17 degrees of moisture sensitivity, two types of bitumen PG64 16 and PG58 22 with different18 performances, and Nano hydrated lime as bitumen modifiers were used The Pull Off test was19 performed to investigate the effect of different failure mechanisms cohesion and adhesion The20 Pull Off test results showed that, in terms of hot asphalt mixture hardening in dry and wet conditions,21 the additive relatively improved the yield modulus of the asphalt mixture, but the effect was greater22 in the wet condition and as a result, the ratio of wet to dry modulus increased A comparison of the23 Pull Off test results in two states of cohesion and adhesion failure demonstrated that Nano hydrated24 lime was more effective in enhancing bitumen and aggregate adhesion in the comparison with25 cohesion between bitumen molecules
کلیدواژهها
نویسندگان
Kaveh Ghasemdoost Abadi
MSc in Road and Transportation Engineering, Department of Civil Engineering, University of Guilan, Rasht, Islamic Republic of Iran
Mahyar Arabani
Professor in Road and Transportation Engineering, Department of Civil Engineering, University of Guilan, Rasht, Islamic Republic of Iran
Gholam Hossein Hamedi
Assistant Professor in Road and Transportation Engineering, Department of Civil Engineering, University of Guilan, Rasht, Islamic Republic of Iran
شیوه ارجاع
Ghasemdoost Abadi, Kaveh and Arabani, Mahyar and Hamedi, Gholam Hossein,1402,Evaluation of the Nano-Hydrated Lime effect on Cohesion and Adhesion Failure Mechanisms against Moisture Susceptibility,13th International Congress on Civil Engineering,Tehran
ارائهشده در
مجموعه مقالات سیزدهمین کنگره بین المللی مهندسی عمران25 مهر 1402 · تهران