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标题：Sustainability assessment of EPS-geofoam in road construction: a case study
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作者：Dharmendra Kumar Srivastava ; Amit Srivastava ; Anil Kumar Misra 等
期刊名称：International Journal of Sustainable Engineering
印刷版ISSN：1939-7038
出版年度：2019
卷号：12
期号：5
页码：341-348
DOI：10.1080/19397038.2018.1508319
语种：English
出版社：Taylor & Francis Group
摘要：ABSTRACTIn the present study, construction procedure and performance assessment of expanded polystyrene EPS-geofoam layer, which is utilized in the repair and rehabilitation of road work, is demonstrated. EPS geo-foam application was suggested after observing excessive settlement and distress of approach roads near Cross drainage (C-D) works constructed on bypass road of an important National Highway Project in India. EPS-geofoam was used as an alternative to earth backfill in approaches of newly constructed culvert on the same bypass road on one side of the C-D work and, for comparison purpose; the other side of the C-D work was retained with existing earth backfill. EPS-Geofoam was convenient to handle, easy to place and executed effeciently in terms of machineries and man power. Also, after 6 months of observation, it was noted that Pavement Quality Concrete (PQC) constructed over earthfill material have shown sign of distress and longitudinal cracks were observed due to excessive settlement; on the other hand PQC constructed over EPS-geofoam was intact with no sign of distress. Outcome of the study suggest the use of EPS-geofoam in similar situations as per the proposed guidelines for construction as well as cross-sectional details and design recommended.
关键词：KEYWORDSEPS-geofoamHumepipe culvertGeotextilepavementnumerical analysisembankmentHume pipeearthen backfillperformance assessmentdurableeconomical