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

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.


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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Kanwarjot Singh

Kanwarjot Singh is the founder of Civil Engineering Portal, a leading civil engineering website which has been awarded as the best online publication by CIDC. He did his BE civil from Thapar University, Patiala and has been working on this website with his team of Civil Engineers.

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2 comments on "What are the advantages of using rockfill over earthfill to build road embankment?"

civil eng. Anwar Salih SHarif says:

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 says:

i need all the layers from road bad to bass

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