Performance of Nano kaolin clay as modified binder in porous asphalt mixture

National Colloquium on Wind and Earthquake Engineering

Juraidah, A.^1 ; Ramadhansyah, P.J.^2 ; Azman, M Khairil^2 ; Nurulain, C.M.^3 ; Naqiuddin, M W Muhammad^3 ; Norhidayah, A.H.^3 ; Haryati, Y.^3 ; Nordiana, M.^3

Faculty of Civil Engineering, Universiti Teknologi MARA, Selangor, Shah Alam

40450, Malaysia^1

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

26300, Malaysia^2

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

81310, Malaysia^3

关键词: Grinding process;    Modified binders;    Penetration values;    Physical and mechanical properties;    Porous asphalt mixtures;    Resilient modulus tests;    Softening points;    Temperature susceptibility;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/244/1/012036/pdf
DOI  :  10.1088/1755-1315/244/1/012036

来源: IOP

【 摘 要 】

The performance of porous asphalt (PA) mixture incorporating Nano kaolin clay (NKC) was presented in this study. The study covers basic properties of PA including morphology characteristic, penetration and softening point test. In addition, cantabro loss and resilient modulus test with regards to the variations of mix design of the PA was also examined. The kaolin clay used in this study has gone through the grinding process to produce the NKC with the percentage replacement of bitumen used was 3%, 5%, 7% and 9%. The results show that the used of NKC improved the physical properties of PA by reducing the penetration value, meanwhile increasing the softening point value. This indicates that NKC enhanced the temperature susceptibility of PA. The experimental result also show that NKC modified binder improved the durability and resistance to rutting and cracking of PA. Furthermore, 5% NKC is also considered as the optimum NKC proportion. The utilization of NKC is able to improve the physical and mechanical properties of PA. Therefore, it can conclude that the performance of PA is also enhanced with utilization of NKC in the bitumen.