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What is the purpose of coating driven piles with bitumen?

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Coating driven piles with bitumen serves the following purposes:

(i) It acts as friction reducer and could effective reduce the effect of downdrag.

(ii) It offers protection of steel piles against acid attack from soils.

(iii) It helps to prevent pile corrosion.

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This question is taken from book named – A Closer Look at Prevailing Civil Engineering Practice – What, Why and How by Vincent T. H. CHU.

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  • mark peter September 9, 2010 at 2:14 am

    i am a civil engineer under graduate wanna know about the use of materials in construction

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