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What are the advantages of using rockfill over earthfill to build road embankment?

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With the use of rockfill to build embankment, it is not a concern regarding the build-up of pore water pressure during construction so that the embankment can be filled at the faster rate. Moreover, the use of rockfill allows a steeper angle in forming road embankment when compared with earthfill so that it results in a small amount of fill. As such, it helps save the cost of construction.

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This question is taken from book named – A Self Learning Manual – Mastering Different Fields of Civil Engineering Works (VC-Q-A-Method) by Vincent T. H. CHU.

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  • civil eng. Anwar Salih SHarif December 2, 2012 at 6:23 am

    1-which size of stone is used in highway rockfill ?
    2-what is the thickness of eachlayer of highway rockfill
    3-which type of roller used to compactoin, and what is its weight?
    4-howmany passess need to take compaction?
    5-which test is need to know compaction is ok.?

    with best regards

  • Denville April 15, 2015 at 11:38 am

    i need all the layers from road bad to bass

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