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The impact of temperature on the deformation properties of the unbound granular materials (UGMs) blended with reclaimed asphalt pavement (RAP) and virgin aggregates was investigated based on the single-stage repeated load triaxial (RLT) tests. Three types of the UGMs containing RAP (RAP-UGMs) as well as the UGMs of neat virgin aggregates (VA-UGMs) were tested at the temperatures of 40 degrees C, 22 degrees C, and 5 degrees C. Then, the permanent strain and resilient strain of the UGMs with and without RAP at different temperatures were fitted using the Tseng-Lytton model and a model proposed in this paper respectively. It was found that the rutting potential of UGMs can be lowered to some extent by using fine RAP in an appropriate amount which could be attributed to the enhancement of cohesion due to the presence of asphalt in the fine particles. Generally, the addition of fine RAP has small effect on the stable resilient strain of UGM. The rutting potential of both RAP-UGMs and VA-UGMs is significantly sensitive to temperature. To some extent, that of the VA-UGMs is slightly more sensitive than that of the UGMs containing fine RAP. However, the stable resilient strain of all the UGMs is almost not impacted by temperature. (C) 2018 Elsevier Ltd. All rights reserved.
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CONSTRUCTION AND BUILDING MATERIALS
ISSN: 0950-0618
Year: 2018
Volume: 169
Page: 443-451
7 . 4 0 0
JCR@2022
ESI Discipline: MATERIALS SCIENCE;
ESI HC Threshold:260
JCR Journal Grade:1
Cited Count:
WoS CC Cited Count: 9
SCOPUS Cited Count: 9
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 12
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