Marshall stability properties of asphaltic concrete with kaolin clay under aging

12th International Civil Engineering Post Graduate Conference;3rd International Symposium on Expertise of Engineering Design

土木建筑工程

Hainin, M.R.^1 ; Ramadhansyah, P.J.^2 ; Awang, H.^2 ; Khairil Azman, M.^2 ; Intan Suhana, M.R.^2 ; Nordiana, M.^1 ; Norhidayah, A.H.^1 ; Haryati, Y.^1 ; Che Ros, I.^1

Faculty of Engineering, School of Civil Engineering, Universiti Teknologi Malaysia, Skudai, Johor Bahru

81310, Malaysia^1

Faculty of Civil Engineering and Earth Resources, Universiti Malaysia Pahang, Pahang, Gambang

26300, Malaysia^2

关键词: Aging conditions;    Asphalt binders;    Asphalt content;    Kaolin clay;    Long-term aging;    Marshall stability;    Stability performance;    Stability properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/220/1/012040/pdf
DOI  :  10.1088/1755-1315/220/1/012040

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The influence of kaolin clay on marshal stability properties of asphaltic concrete AC14 at different aging conditions was presented in this study. These aging conditions were named as un-aged, short-term, and long-term aging. The conventional asphalt binder of penetration grade 60/70 was used in this investigation. Four different levels of kaolin clay replacement were employed (i.e. 0%, 3%, 6%, and 9% by binder weight). Asphalt concrete mixes were prepared at selected optimum asphalt content (5%). The performance was evaluated based on Marshall Stability and voids characteristics. Results indicated the improving stability performance that the mixes modified with kaolin clay have under aging conditions. The result also showed that the use of 6% to 9% kaolin clay can produce more durable asphalt concrete mixtures with better serviceability.