Size effect of hydrated lime on the mechanical performance of asphalt concrete

Albayati, A, Wang, Y ORCID: https://orcid.org/0000-0003-4375-303X and Haynes, J 2022, 'Size effect of hydrated lime on the mechanical performance of asphalt concrete' , Materials, 15 (10) , p. 3715.

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Abstract

Despite widespread agreement on the beneficial nature of hydrated lime (HL) addition to asphalt concrete mixes, understanding of the effect of HL particle size is still limited. Previous investigations have focused mainly on two different size comparisons, and so certain guidance for a practical application cannot yet be produced. This study investigates three distinct sizes of HL, in the range of regular, nano, and sub-nano scales, for their effects on the properties of modified asphalt concretes. Five different percentages of HL as a partial replacement of ordinary limestone filler in asphalt concrete mixes were studied for wearing course application purposes. Experimental tests were conducted to evaluate the mechanical properties, including resistance to plastic flow, volumetric properties, moisture susceptibility, resilient modulus, and permanent deformation. The results revealed that a positive correlation exists between the mechanical properties and the fineness of HL particle sizes

Item Type: Article
Schools: Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre
Schools > School of Computing, Science and Engineering
Journal or Publication Title: Materials
Publisher: MDPI
Related URLs:
Depositing User: Y Wang
Date Deposited: 09 Jun 2022 11:29
Last Modified: 17 Aug 2022 09:45
URI: https://usir.salford.ac.uk/id/eprint/64004

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