Improving Asphalt Emulsion Mixtures Properties Containing Cementitious Filler by Adding GGBS
Publication: Journal of Materials in Civil Engineering
Volume 29, Issue 5
Abstract
Production and use of sustainable cold asphalt emulsion mixtures (CAEMs) that are comparable to traditional hot mixtures and relevant for roads and highway construction might achieve several benefits such as reducing energy consumption, emissions, and total expenses. Furthermore, some of by-products and waste materials could be incorporated in these mixtures to enhance their properties. The purpose of this investigation is to produce CAEM incorporated by producing material(s) with mechanical properties and water sensitivity comparable to conventional hot asphalt mixtures. The mechanical properties have been evaluated by conducting indirect tensile stiffness modulus (ITSM) test and uniaxial compressive cyclic tests (UCCTs), while water sensitivity was evaluated by determining the indirect tensile strength ratio (ITSR). A waste fly ash (WFA) has been incorporated instead of mineral filler with different percentages (0–6% by weight of aggregate), while ground-granulated blast-furnace slag (GGBS) was added with dosages ranging from 0–3% by total mass of aggregate to produce the novel CAEMs. The results revealed a considerable enhancement in the performance of the new CAEM mixtures as a result of using WFA and GGBS in comparison with the conventional hot asphalt mixture properties.
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Published In
Journal of Materials in Civil Engineering
Volume 29 • Issue 5 • May 2017
Copyright
©2016 American Society of Civil Engineers.
History
Received: Jan 1, 2016
Accepted: Oct 18, 2016
Published online: Nov 30, 2016
Discussion open until: Apr 30, 2017
Published in print: May 1, 2017
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