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New developments with cold asphalt concrete binder course mixtures containing binary blended cementitious filler (BBCF)

Dulaimi, A and Al Nageim, H and Ruddock, F and Seton, L (2016) New developments with cold asphalt concrete binder course mixtures containing binary blended cementitious filler (BBCF). Construction and Building Materials, 124. pp. 414-423. ISSN 0950-0618

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Abstract

A weakness in early strength and the need for longer curing times in the case of cold bituminous emulsion mixtures (CBEMs) compared to hot mix asphalt have been cited as barriers to the wider utilization of these mixtures. A binary blended filler material produced from high calcium fly ash (HCFA) and a fluid catalytic cracking catalyst (FC3R) was found to be very effective in providing microstructural integrity with a novel fast-curing cold asphalt concrete for the binder course (CACB) mixture. Balanced oxide compositions within the novel filler were identified as responsible for an enhanced hydration reaction, resulting in a very high early strength and a significant improvement in permanent deformation and fatigue resistance. Improved water sensitivity for progressive hydration with the new binary filler was also established while SEM analysis confirmed the formation of hydration products after various curing ages. © 2016 Elsevier Ltd

Item Type: Article
Uncontrolled Keywords: 0905 Civil Engineering, 1202 Building
Subjects: Q Science > QD Chemistry
T Technology > TE Highway engineering. Roads and pavements
T Technology > TH Building construction
Divisions: Built Environment
Civil Engineering
Pharmacy & Biomolecular Sciences
Publisher: Elsevier
Date Deposited: 22 Nov 2016 10:30
Last Modified: 07 Sep 2017 07:33
DOI or Identification number: 10.1016/j.conbuildmat.2016.07.114
URI: http://researchonline.ljmu.ac.uk/id/eprint/4828

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