Rheological and MECHANICAL Performance of Asphalt Binders and Mixtures Incorporating CaCO3 and LLDPE

查看全文 作　　者：Mohd Rosli Mohd [1]Hasan;Zhanping [2]You;Mohd Khairul Idham Mohd [3]Satar;Muhammad Naqiuddin Mohd [3]Warid;Nurul Hidayah Mohd [4]Kamaruddin;Sharvin [1]Poovaneshvaran 机构地区：[1]School of Civil Engineering,Universiti Sains Malaysia,Engineering Campus,14300 Nibong Tebal,Pulau Pinang,Malaysia;[2]Department of Civil and Environmental Engineering,Michigan Technological University,1400 Townsend Drive Houghton,MI 49931,USA;[3]Department of Geotechnics and Transportation,Faculty of Civil Engineering,Universiti Teknologi Malaysia,81310 Johor Bahru,Johor,Malaysia;[4]Faculty of Civil and Environmental Engineering,Universiti Tun Hussein Onn Malaysia,86400 Parit Raja,Batu Pahat,Johor,Malaysia. 出　　处：《Organic Polymer Material Research》索引2019年第1卷第1期,共12页 基　　金：The authors grateful to express their appreciation to Specialty Minerals Inc.(Bethlehem,PA,USA),Payne&Dolan Inc.(Waukesha,WI,USA),and Dow Chemical Company(Midland,MI,USA)for donating test materials.The authors would like to acknowledge the research assistantships to Mohd Rosli Mohd Hasan,Mohd Khairul Idham Mohd Satar,Muhammad Naqiuddin Mohd Warid,and Nurul Hidayah Mohd Kamaruddin.The authors also want to acknowledge Julia A.King from the Department of Chemical Engineering of Michigan Technological University for her significant contributions in materials preparation,test design,and paper revision.It is impossible for the authors to complete the work without her effort.Any opinions,findings and conclusions expressed in this paper are those of the authors’and do not necessarily reflect the views of the official views and policies of any institution or company. 摘　　要：This study was conducted to assess the performance of modified asphalt binders and engineering properties of mixtures prepared with incorporation 3 vol%and 6 vol%of calcium carbonate(CaCO3),linear low-density polyethylene(LLDPE),and combinations of CaCO3 and LLDPE.The rheological properties of control and modified asphalt binders were evaluated using a series of testing such as rotational viscometer(RV),multiple stress creep recovery(MSCR)and bending beam rheometer(BBR)tests.Meanwhile,four-point beam fatigue test,the dynamic modulus(E*)test and tensile strength ratio(TSR)test were conducted to assess the engineering properties of asphalt mixtures.Based on the findings,the RV and MSCR test result shows that all modified asphalt binders have improved performance in comparison to the neat asphalt binders in terms of higher viscosity and improved permanent deformation resistance.A higher amount of CaCO3 and LLDPE have led modified asphalt binders to better recovery percentage,except the asphalt binders modified using a combination of CaCO3 and LLDPE.However,the inclusion of LLDPE into asphalt binder has lowered the thermal cracking resistance.The incorporation of CaCO3 in asphalt mixtures was found beneficial,especially in improving the ability to resist fatigue cracking of asphalt mixture.In contrast,asphalt mixtures show better moisture sensitivity through the addition of LLDPE.The addition of LLDPE has significantly enhanced the indirect tensile strength values and tensile strength ratio of asphalt mixtures. 关 键 词：ASPHALT modification BINDER RHEOLOGY Mineral FILLER Mixture performance Plastic