Review of sustainability, pretreatment, and engineering considerations of asphalt modifiers from the industrial solid wastes

论文摘要

The escalating mass of solid waste at an overwhelming sum requires a global attention to strive for efficient waste management and to outsource the ecological treatments. The asphalt pavement industry that consumes a vast scale of natural resources while contributing to thermal and greenhouse emissions is viewed as a high potential alternative for the application of solid waste as asphalt modifier and substantial waste reduction. In efforts to urge for cleaner and greener asphalt production, a growing trend towards usageof solid waste as a renewable material is paving a sustainable future for the asphalt pavement industry. The economic options of incorporating solid waste into the asphaltic mixture coupled with proven effective performances are a green and cost-effective alternative to mitigate various pavement distresses. Various options either as coarse or fine aggregates and as fillers in powder, ash, or fibre form are to stimulate further research interest to incorporate a diversified range of solid waste into the asphalt binder and asphalt mixture. Prior to incorporating solid waste into the asphaltic mixture through the selected options, prerequisite tests in addressing engineering limitations due to the unknown properties of solid waste are reviewed. The concerns on environmental impact are given heavy metals leaching possibilities into water sources are addressed by Toxicity Characterization Leaching Procedure test, to leverage further the systematic reuse of solid waste in steering towards the cleaner production of the asphalt mixture. The microcosmic traits of solid waste namely surface morphology, mineralogical composition and chemical composition are summarized based on the usage of Scanning Electron Microscope, X-Ray Diffraction, and X-Ray Fluorescence, respectively. This systematic review is an enactment and stimulus for researchers to have a general overview before incorporating solid waste into asphalt mixture.

论文目录

• HIGHLIGHTS
• GRAPHICAL ABSTRACT
• 1.Introduction
• 2.Emerging interest and options to incorporate solid waste
• 3.Prerequisite properties of solid waste to address engineering limitations
•   3.1.Solid waste to be incorporated as aggregates
•   3.2.Solid waste to be incorporated as powder, ash or fibre
• 4.Possibility of heavy metals leaching
•   4.1.Implementation of the TCLP test to determine heavy metal leaching in the asphalt mixture
•   4.2.Methodology and regulations of the TCLP test
• 5.Pretreatment of solid waste
• 6.Influence of solid waste on mechanical performance of asphalt mixture
• 7.Microcosmic traits of asphalt and solid waste interactions
•   7.1.Surface morphology of solid waste using SEM
•   7.2.Mineralogical composition of solid waste using XRD
•   7.3.Chemical composition of solid waste using XRF
• 8.Considerations and way forward for the implementations
•   8.1.Potential challenges and solutions
•   8.2.Energy requirement and greenhouse gasses emission
•     8.2.1.Raw material production and processing
•     8.2.2.Asphalt mix placement
•     8.2.3.Transportation
•     8.2.4.Utility
•     8.2.5.Recycling
• 9.Conclusions and future developments
• Conflict of interest

文章来源

类型: 期刊论文

作者: Mohd Rosli Mohd Hasan,J-Wei Chew,Ali Jamshidi,Xu Yang,Meor Othman Hamzah

来源: Journal of Traffic and Transportation Engineering(English Edition) 2019年03期

年度: 2019

分类: 工程科技Ⅱ辑

专业: 公路与水路运输

单位: Meor Othman Hamzaha aSchool of Civil Engineering, Universiti Sains Malaysia,School of Highway, Chang'an University,School of Science and Engineering, University of Sunshine Coast,Department of Civil Engineering, Monash University

基金: Malaysian Ministry of Higher Education and Universiti Sains Malaysia(USM)Division of Research&Innovation through the Fundamental Research Grant Scheme(203,PAWAM,6071358),Short-Term Research Grant Scheme(304,PAWAM,60313048)

分类号: U414

页码: 209-244

总页数: 36

文件大小: 15456K

下载量: 116