Sustainable utilization of lime kiln dust as active filler in hot mix asphalt with moisture damage resistance

© 2018 Elsevier B.V. The Australian flexible road pavement network is experiencing a considerable degree of reveling and stripping damage in association with moisture. The next generation of hot mix asphalt (HMA) mixtures in Australia needs to have excellent engineering properties as well as higher...

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Main Authors: Peerapong Jitsanigam, Wahidul K. Biswas, Martyn Compton
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/58645
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-586452018-09-05T04:30:52Z Sustainable utilization of lime kiln dust as active filler in hot mix asphalt with moisture damage resistance Peerapong Jitsanigam Wahidul K. Biswas Martyn Compton Energy Engineering Environmental Science Materials Science © 2018 Elsevier B.V. The Australian flexible road pavement network is experiencing a considerable degree of reveling and stripping damage in association with moisture. The next generation of hot mix asphalt (HMA) mixtures in Australia needs to have excellent engineering properties as well as higher resistance to moisture damage. Hydrated lime (HL) with a relatively high content of active lime is used in HMA mixtures to improve engineering properties, and particularly to enhance the resistance of HMA mixture to moisture. HL is currently considered a superior mineral filler to crushed rock baghouse dust but it is commercially produced and relatively expensive. Lime kiln dust (LKD) is an industrial by-product which has hydrated lime HMA filler-like properties with similar fineness and a relatively high content of active lime. The lime components in LKD assists in promoting resistance to the stripping common in siliceous acidic aggregates. This project aims to determine an optimum proportion of LKD in an LKD-asphalt binder mixture, based on the properties of viscoelasticity and aggregate adhesion. Dynamic shear rheometer testing and rolling bottle tests were used to evaluate the properties of the LKD-asphalt binder mixtures with varying LKD content. The test results indicated that a 50% LKD content in the LKD-HMA binder mixture provided superior viscoelasticity properties., an acceptable adhesion of asphalt to aggregates was also observed. Last but not the least, a ‘cradle to gate’ life cycle assessment was carried out to capture the benefits of the use of LKD by-product. This showed that GHG emissions and embodied energy demand could potentially be reduced by 18.5% and 2.4%, respectively if a 50% LKD asphalt binder by mass mixture was used in the LKD-HMA mix. 2018-09-05T04:27:32Z 2018-09-05T04:27:32Z 2018-09-01 Journal 22149937 2-s2.0-85049560845 10.1016/j.susmat.2018.e00071 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85049560845&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/58645
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Energy
Engineering
Environmental Science
Materials Science
spellingShingle Energy
Engineering
Environmental Science
Materials Science
Peerapong Jitsanigam
Wahidul K. Biswas
Martyn Compton
Sustainable utilization of lime kiln dust as active filler in hot mix asphalt with moisture damage resistance
description © 2018 Elsevier B.V. The Australian flexible road pavement network is experiencing a considerable degree of reveling and stripping damage in association with moisture. The next generation of hot mix asphalt (HMA) mixtures in Australia needs to have excellent engineering properties as well as higher resistance to moisture damage. Hydrated lime (HL) with a relatively high content of active lime is used in HMA mixtures to improve engineering properties, and particularly to enhance the resistance of HMA mixture to moisture. HL is currently considered a superior mineral filler to crushed rock baghouse dust but it is commercially produced and relatively expensive. Lime kiln dust (LKD) is an industrial by-product which has hydrated lime HMA filler-like properties with similar fineness and a relatively high content of active lime. The lime components in LKD assists in promoting resistance to the stripping common in siliceous acidic aggregates. This project aims to determine an optimum proportion of LKD in an LKD-asphalt binder mixture, based on the properties of viscoelasticity and aggregate adhesion. Dynamic shear rheometer testing and rolling bottle tests were used to evaluate the properties of the LKD-asphalt binder mixtures with varying LKD content. The test results indicated that a 50% LKD content in the LKD-HMA binder mixture provided superior viscoelasticity properties., an acceptable adhesion of asphalt to aggregates was also observed. Last but not the least, a ‘cradle to gate’ life cycle assessment was carried out to capture the benefits of the use of LKD by-product. This showed that GHG emissions and embodied energy demand could potentially be reduced by 18.5% and 2.4%, respectively if a 50% LKD asphalt binder by mass mixture was used in the LKD-HMA mix.
format Journal
author Peerapong Jitsanigam
Wahidul K. Biswas
Martyn Compton
author_facet Peerapong Jitsanigam
Wahidul K. Biswas
Martyn Compton
author_sort Peerapong Jitsanigam
title Sustainable utilization of lime kiln dust as active filler in hot mix asphalt with moisture damage resistance
title_short Sustainable utilization of lime kiln dust as active filler in hot mix asphalt with moisture damage resistance
title_full Sustainable utilization of lime kiln dust as active filler in hot mix asphalt with moisture damage resistance
title_fullStr Sustainable utilization of lime kiln dust as active filler in hot mix asphalt with moisture damage resistance
title_full_unstemmed Sustainable utilization of lime kiln dust as active filler in hot mix asphalt with moisture damage resistance
title_sort sustainable utilization of lime kiln dust as active filler in hot mix asphalt with moisture damage resistance
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85049560845&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/58645
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