Journal ArticleDOI
Evaluation of Moisture Susceptibility of Asphalt Mixtures Containing Bottom Ash
Menglan Zeng,Khaled Ksaibati +1 more
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TLDR
The use of bottom ash in asphalt mixtures is still in an early stage as discussed by the authors, which has not been adequately researched, is investigated in the study of the moisture resistance of asphalt mixture containing bottom ash, which has been used in constructing transportation facilities.Abstract:
Bottom ash, as a by-product of coal-fired electric power plants, has recently been used in constructing transportation facilities. However, the use of bottom ash in asphalt mixtures is still in an early stage. The moisture resistance of asphalt mixtures containing bottom ash, which has not been adequately researched, is investigated in this study. Eight asphalt mixtures produced with one type of asphalt cement, two types of aggregate, three sources of bottom ash, and lime additive were evaluated using the principles in AASHTO T283. Analysis of test data indicated that granite mixtures had higher tensile strength values than did limestone mixtures in dry conditions. Addition of lime or bottom ash did not substantially change these values. All mixtures tested met the Superpave volumetric mix design requirement of tensile strength ratio (TSR) after one freeze-thaw cycle. The addition of lime significantly improved the moisture resistance of the asphalt mixtures as measured by the TSR. With lime addition, aggregate type, bottom ash addition, and bottom ash source were all insignificant with respect to TSR. On the basis of TSR rate (TSRR), the addition of lime significantly improved the moisture resistance of the asphalt mixtures subjected to multiple freeze-thaw cycles. Without lime addition, bottom ash played a role similar to that of lime in improving the TSRR for the materials tested.read more
Citations
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An overview of metals recovery from thermal power plant solid wastes
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Evaluation of Moisture Damage Mechanisms and Effects of Hydrated Lime in Asphalt Mixtures through Measurements of Mixture Component Properties and Performance Testing
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Effects of moisture on strength and permanent deformation of foamed asphalt mix incorporating RAP materials
TL;DR: In this paper, a 24-h-soaking preconditioning method was selected to evaluate moisture effects on the strength and permanent deformation of hot-mixed asphalt and foamed asphalt (FA) mixes.
Journal ArticleDOI
Engineering and Environmental Characterization of Municipal Solid Waste Bottom Ash as an Aggregate Substitute Utilized for Asphalt Concrete
TL;DR: In this paper, the authors analyzed the physical and environmental properties of asphalt mixtures containing different amounts of MSW-BA used as an aggregate substitute, and they recommended that the use of the bottom ash in asphalt concrete mixtures be limited to be 20% ash, by total weight of the mix, in binder or base course and 10% in surface mix to ensure satisfactory pavement performance.
Journal ArticleDOI
Physical and Chemical Properties, Pretreatment, and Recycling of Municipal Solid Waste Incineration Fly Ash and Bottom Ash for Highway Engineering: A Literature Review
Yong Lu,Angran Tian,Junhui Zhang,Yongsheng Tang,Peixin Shi,Qiang Tang,Qiang Tang,Yucheng Huang +7 more
TL;DR: In this paper, the authors discussed the production process, physical and chemical properties, leaching properties, pretreatment methods, and applications of fly ash and bottom ash and found that fly ash has mechanical properties similar to natural aggregate.
References
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Hot mix asphalt materials, mixture design and construction
TL;DR: In this article, the authors provide technical information on Hot Mix Asphalt (HMA) to engineering students and present a textbook to assist the college professor in providing technical information to students.
Hot mix asphalt materials, mixture design and construction. second edition
TL;DR: In this article, the authors present a textbook for teaching undergraduate and graduate courses on Hot Mix Asphalt (HMA), which includes information on Stone Matrix Asphalt, Superpave performance grade (PG) asphalt binders, superpave mix design and asphalt modifiers.
Book ChapterDOI
Coal Combustion Product (CCP) Production and Use
TL;DR: The American Coal Ash Association (ACAA) conducts an annual voluntary, confidential, survey of U. S. coal fired electric utilities to gather data about the production and use of coal combustion products (CCPs) as mentioned in this paper.
Journal ArticleDOI
Shear and Deformation Characteristics of Municipal Waste Combustor Bottom Ash for Highway Applications
TL;DR: In this paper, municipal waste combustor (MWC) bottom ash from mass-burn (MB) and refuse-derived-fuel (RDF) facilities was evaluated for potential use as highway fill material.