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    Volume 46, Issue 1 (January 2018)

    Assessment of Compaction Quality Based on Two Index Parameters from Roller-Integrated Compaction Measurements

    (Received 13 December 2015; accepted 4 October 2016)

    Published Online: 2017

    CODEN: JTEVAB

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    Abstract

    The average degree and uniformity of compaction are two important aspects of continuous compaction control. This paper presents the development and assessment of two new indices for evaluating the average degree and uniformity of field compaction. The proposed index δ accounts for measured compaction values and their corresponding area. The proposed index R relates to the spatial distribution of undercompacted areas. In situ compaction data collected from five subgrade sections are used to assess the applicability of the proposed indices. The results show that the combination of δ and R is capable of comprehensively evaluating field compaction quality. It is found that δ < 1 % and R > 0.5 can be used as the acceptance criteria for average degree of compaction and spatial uniformity of compaction, respectively.

    Author Information:

    Nie, Z.-H.
    School of Civil Engineering, Central South Univ., Changsha,

    Jiao, T.
    School of Civil Engineering, Central South Univ., Changsha,

    Wang, X.
    School of Civil Engineering, Central South Univ., Changsha,

    Qiu, T.
    Department of Civil and Environmental Engineering, The Pennsylvania State University, University Park, PA


    Stock #: JTE20150512

    ISSN:0090-3973

    DOI: 10.1520/JTE20150512

    Author
    Title Assessment of Compaction Quality Based on Two Index Parameters from Roller-Integrated Compaction Measurements
    Symposium ,
    Committee D18