Effect of Filler Type on Moisture Susceptibility of Asphalt Mixtures Using Mechanical and Thermodynamic Properties

AbstractIn order to evaluate the influence of filler type on the moisture susceptibility of asphalt mixtures, this study examined the thermodynamic properties of mastic and the mechanical properties of hot-mix asphalt subjected to multiple freeze-thaw cycles. Furthermore, the potential of using wast...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials in civil engineering 2019-04, Vol.31 (4)
Main Authors: Arbabpour Bidgoli, Mohammad, Naderi, Koorosh, Moghadas Nejad, Fereidoon
Format: Article
Language:English
Subjects:
Asphalt
Bituminous cements
Building materials
Cement
Civil engineering
Concrete aggregates
Damage assessment
Filler materials
Freeze thaw cycles
Freeze-thaw durability
Limestone
Mechanical properties
Moisture resistance
Portland cements
Sensitivity analysis
Technical Papers
Thermodynamic properties
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:AbstractIn order to evaluate the influence of filler type on the moisture susceptibility of asphalt mixtures, this study examined the thermodynamic properties of mastic and the mechanical properties of hot-mix asphalt subjected to multiple freeze-thaw cycles. Furthermore, the potential of using waste concrete aggregates as filler material was particularly evaluated using the moisture damage properties of asphalt mixtures. To fulfill these objectives, recycled concrete aggregates, limestone filler, and portland cement were used as filler materials in asphalt mixtures and siliceous stone powder was used as filler in control samples. The indirect tensile strength and resilient modulus tests were performed as commonly used experiments to assess the moisture sensitivity of asphalt mixtures. Furthermore, the surface free-energy components of mastics as well as the cohesion and adhesion of the mixtures were determined. The results of mechanical and thermodynamic experiments suggest that asphalt mixtures containing the portland cement filler outperform those containing other types of filler at all freeze-thaw cycles in terms of moisture susceptibility. However, recycled concrete aggregates are a sustainable alternative for the aggregate filler and, based on results, they can improve the moisture resistance of asphalt mixtures, particularly at increased freeze-thaw cycles.
ISSN:0899-1561
1943-5533
DOI:10.1061/(ASCE)MT.1943-5533.0002648