Thermal performance of waste materials as aggregate replacement in asphalt pavement

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

土木建筑工程

Ridha Oleiwi Aletba, Salam^1 ; Abdul Hassan, Norhidayah^1 ; Aminudin, Eeydzah^1 ; Putra Jaya, Ramadhansyah^2 ; Athma Mohd Shukry, Nurul^1 ; Mashros, Nordiana^1 ; Aziz, Md Maniruzzaman A.^1 ; Md Nor, Hasanan^1

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

81310, Malaysia^1

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

26300, Malaysia^2

关键词: Industrial development;    Infra-red cameras;    Internal temperature;    Rapid urbanizations;    Spectro-radiometers;    Surface temperatures;    Thermal Performance;    Urban heat island;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/220/1/012011/pdf
DOI  :  10.1088/1755-1315/220/1/012011

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The high surface temperature of the conventional asphalt pavement due to high solar energy absorption could contribute to the Urban Heat Island (UHI) phenomenon. Concurrent with this phenomenon, rapid urbanization and industrial development have led to a large quantity of waste products available for disposal or recycling. Therefore, this study investigates the thermal performance of selected waste materials that could potentially be used as aggregate in asphalt pavement to combat the problem of increased pavement surface temperature. A number of waste materials were selected for the thermal performance measurement and compared to granite as conventional aggregate. The cylindrical and slab samples of AC14 dense graded asphalt were prepared for the different selected aggregate types. The samples were then measured for solar reflectance using Spectroradiometer. In addition, the surface and internal temperature profiles of the samples were monitored using infrared camera and thermocouples, respectively, in exposed environments. Based on the results, it is possible to use some of the waste materials as an aggregate replacement in order to reduce the UHI impact.