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  • Optimization of aggregate testing using polynomial regression

    Author(s)
    Tam, Vivian
    Le, Khoa
    Griffith University Author(s)
    Le, Khoa N.
    Tam, Vivian WY.
    Year published
    2007
    Metadata
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    Abstract
    Recycled Aggregate (RA) has only been used as sub-grade applications, roadwork and unbound materials because it is believed that RA has lower strength and poorer quality than normal aggregate. This paper assesses RA quality by proposing a new testing procedure. The new procedure is developed by using correlation information among the standard twenty three tests commonly employed in the construction industry. Samples of RA from ten demolition sites were obtained with service life ranging from ten to forty years. One additional set of samples was specifically collected from the Tuen Mun Area 38 Recycling Plant, Hong Kong for ...
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    Recycled Aggregate (RA) has only been used as sub-grade applications, roadwork and unbound materials because it is believed that RA has lower strength and poorer quality than normal aggregate. This paper assesses RA quality by proposing a new testing procedure. The new procedure is developed by using correlation information among the standard twenty three tests commonly employed in the construction industry. Samples of RA from ten demolition sites were obtained with service life ranging from ten to forty years. One additional set of samples was specifically collected from the Tuen Mun Area 38 Recycling Plant, Hong Kong for testing. The characteristics of these eleven sets of samples were then compared with normal aggregate samples. A Vandermonde matrix for interpolation polynomials coefficient estimation is employed to yield detailed mathematical relationships between results of two particular tests, from that redundant tests can be identified. Different orders of interpolation polynomials are used for comparison, hence the best-fit equations with lowest fitting errors from different orders of polynomials can be found. This paper shows that four out of twenty three tests are required in the new testing procedure.
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    Journal Title
    Journal of Green Building
    Volume
    2
    Issue
    3
    Publisher URI
    http://www.collegepublishing.us/journal.htm
    DOI
    https://doi.org/10.3992/jgb.2.3.144
    Copyright Statement
    © 2007 College Publishing. Self-archiving of the author-manuscript version is not yet supported by this publisher. Please refer to the journal link for access to the definitive, published version or contact the author for more information.
    Subject
    Architecture
    Building
    Publication URI
    http://hdl.handle.net/10072/16100
    Collection
    • Journal articles

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