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    Performance Evaluation of Desulfurized Rubber Asphalt Based on Rheological and Environmental Effects

    Source: Journal of Materials in Civil Engineering:;2020:;Volume ( 032 ):;issue: 001
    Author:
    Jiarong Wang
    ,
    Zhengqi Zhang
    ,
    Zhuolin Li
    DOI: 10.1061/(ASCE)MT.1943-5533.0002971
    Publisher: ASCE
    Abstract: To understand the performance of desulfurized rubber asphalt (DRA) and its application feasibility comprehensively, the road performance, viscosity–temperature characteristics, rheological properties, storage stability, aging resistance, and environmental performance of DRA were investigated and compared with ordinary rubber (hereinafter called rubberized rubber) asphalt. The test results showed that rubberized rubber asphalt (RRA) performs better than DRA in elastic recovery, aging resistance, and rutting resistance, but DRA performs better than RRA in storage stability and low-temperature performance. DRA has similar fatigue resistance as RRA. Compared with RRA, the construction temperature of DRA can be reduced by about 30°C, which means that DRA has better workability. The performance grade (PG) of DRA was classified as PG 76-34, which indicates that DRA has a wider temperature range and can be applied to lower-temperature environments. In addition, the harmful gas emission of DRA is lower than that of RRA, so DRA is more environmentally friendly. Therefore, it is necessary to modify DRA with compound methodologies to enlarge its application.
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      Performance Evaluation of Desulfurized Rubber Asphalt Based on Rheological and Environmental Effects

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4267159
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    • Journal of Materials in Civil Engineering

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    contributor authorJiarong Wang
    contributor authorZhengqi Zhang
    contributor authorZhuolin Li
    date accessioned2022-01-30T20:48:38Z
    date available2022-01-30T20:48:38Z
    date issued1/1/2020 12:00:00 AM
    identifier other%28ASCE%29MT.1943-5533.0002971.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4267159
    description abstractTo understand the performance of desulfurized rubber asphalt (DRA) and its application feasibility comprehensively, the road performance, viscosity–temperature characteristics, rheological properties, storage stability, aging resistance, and environmental performance of DRA were investigated and compared with ordinary rubber (hereinafter called rubberized rubber) asphalt. The test results showed that rubberized rubber asphalt (RRA) performs better than DRA in elastic recovery, aging resistance, and rutting resistance, but DRA performs better than RRA in storage stability and low-temperature performance. DRA has similar fatigue resistance as RRA. Compared with RRA, the construction temperature of DRA can be reduced by about 30°C, which means that DRA has better workability. The performance grade (PG) of DRA was classified as PG 76-34, which indicates that DRA has a wider temperature range and can be applied to lower-temperature environments. In addition, the harmful gas emission of DRA is lower than that of RRA, so DRA is more environmentally friendly. Therefore, it is necessary to modify DRA with compound methodologies to enlarge its application.
    publisherASCE
    titlePerformance Evaluation of Desulfurized Rubber Asphalt Based on Rheological and Environmental Effects
    typeJournal Paper
    journal volume32
    journal issue1
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/(ASCE)MT.1943-5533.0002971
    page10
    treeJournal of Materials in Civil Engineering:;2020:;Volume ( 032 ):;issue: 001
    contenttypeFulltext
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