Mechanical, durability and microstructure properties of cold asphalt emulsion mixtures with different types of filler

The primary aim of this study is to investigate the enhancement of Cold Asphalt Emulsion Mixtures (CAEMs) using binary and ternary blended fillers (BBF and TBF), including an in-depth assessment of the microstructure. Ordinary Portland cement (OPC), fly ash (FA) and ground granulated blast furnace s...

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Main Authors: Nassar, Ahmed I., Mohammed, Mahmoud Khashaa, Thom, Nicholas, Parry, Tony
Format: Article
Published: Elsevier 2016
Subjects:
Online Access:https://eprints.nottingham.ac.uk/33158/
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author Nassar, Ahmed I.
Mohammed, Mahmoud Khashaa
Thom, Nicholas
Parry, Tony
author_facet Nassar, Ahmed I.
Mohammed, Mahmoud Khashaa
Thom, Nicholas
Parry, Tony
author_sort Nassar, Ahmed I.
building Nottingham Research Data Repository
collection Online Access
description The primary aim of this study is to investigate the enhancement of Cold Asphalt Emulsion Mixtures (CAEMs) using binary and ternary blended fillers (BBF and TBF), including an in-depth assessment of the microstructure. Ordinary Portland cement (OPC), fly ash (FA) and ground granulated blast furnace slag (GGBS) were used for the BBF while silica fume (SF) was added to the BBF to obtain TBF. The mechanical and durability results indicated that the TBF was more suitable than the BBF for the production of CAEMs. The microstructural assessment indicated that the effect of BBF on the internal microstructure of CAEMs was slightly negative and more noticeable in CAEMs containing FA. It is proposed that the addition of SF to BBF mixtures can eliminate the delay in formation of hydration products caused by the bitumen emulsion. Overall, the research suggests that the use of BBF-CAEMs might be appropriate for pavements in cold climate whereas TBF-CAEMs would be effective in road pavements exposed to severe conditions both in hot and cold climates.
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spelling nottingham-331582020-05-04T17:53:59Z https://eprints.nottingham.ac.uk/33158/ Mechanical, durability and microstructure properties of cold asphalt emulsion mixtures with different types of filler Nassar, Ahmed I. Mohammed, Mahmoud Khashaa Thom, Nicholas Parry, Tony The primary aim of this study is to investigate the enhancement of Cold Asphalt Emulsion Mixtures (CAEMs) using binary and ternary blended fillers (BBF and TBF), including an in-depth assessment of the microstructure. Ordinary Portland cement (OPC), fly ash (FA) and ground granulated blast furnace slag (GGBS) were used for the BBF while silica fume (SF) was added to the BBF to obtain TBF. The mechanical and durability results indicated that the TBF was more suitable than the BBF for the production of CAEMs. The microstructural assessment indicated that the effect of BBF on the internal microstructure of CAEMs was slightly negative and more noticeable in CAEMs containing FA. It is proposed that the addition of SF to BBF mixtures can eliminate the delay in formation of hydration products caused by the bitumen emulsion. Overall, the research suggests that the use of BBF-CAEMs might be appropriate for pavements in cold climate whereas TBF-CAEMs would be effective in road pavements exposed to severe conditions both in hot and cold climates. Elsevier 2016-07-01 Article PeerReviewed Nassar, Ahmed I., Mohammed, Mahmoud Khashaa, Thom, Nicholas and Parry, Tony (2016) Mechanical, durability and microstructure properties of cold asphalt emulsion mixtures with different types of filler. Construction and Building Materials, 114 . pp. 352-363. ISSN 1879-0526 Cold Asphalt Emulsion Mixtures; Blended fillers; Stiffness modulus; Repeated load axial test; Durability; Microstructure; Delay hydration process http://www.sciencedirect.com/science/article/pii/S0950061816304020 doi:10.1016/j.conbuildmat.2016.03.112 doi:10.1016/j.conbuildmat.2016.03.112
spellingShingle Cold Asphalt Emulsion Mixtures; Blended fillers; Stiffness modulus; Repeated load axial test; Durability; Microstructure; Delay hydration process
Nassar, Ahmed I.
Mohammed, Mahmoud Khashaa
Thom, Nicholas
Parry, Tony
Mechanical, durability and microstructure properties of cold asphalt emulsion mixtures with different types of filler
title Mechanical, durability and microstructure properties of cold asphalt emulsion mixtures with different types of filler
title_full Mechanical, durability and microstructure properties of cold asphalt emulsion mixtures with different types of filler
title_fullStr Mechanical, durability and microstructure properties of cold asphalt emulsion mixtures with different types of filler
title_full_unstemmed Mechanical, durability and microstructure properties of cold asphalt emulsion mixtures with different types of filler
title_short Mechanical, durability and microstructure properties of cold asphalt emulsion mixtures with different types of filler
title_sort mechanical, durability and microstructure properties of cold asphalt emulsion mixtures with different types of filler
topic Cold Asphalt Emulsion Mixtures; Blended fillers; Stiffness modulus; Repeated load axial test; Durability; Microstructure; Delay hydration process
url https://eprints.nottingham.ac.uk/33158/
https://eprints.nottingham.ac.uk/33158/
https://eprints.nottingham.ac.uk/33158/