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What is difference in purpose for conducting surface regularity test and sand patch test (test on texture depth)?

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The purpose of surface regularity test is to measure the riding quality of pavements and the same requirement and standard is applied to both concrete and bituminous carriageway.

On the other hand, sand patch test is used for checking the skid resistance of road pavements. Moreover, it is related to traffic noise because the intensity of noise generated from road traffic is related to texture depth of carriageway.

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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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Comments
  • N.Krishna Reddy July 26, 2011 at 8:29 am

    Please send the prescribed format for measurement of surface regularity. How it shall be measured for Base course and wearing course.

  • srinivas June 25, 2014 at 4:38 am

    3m straight edge test will be applied. For base course +/- 6mm for wearing course +/- 3mm.

  • B.L.Rao April 7, 2018 at 3:46 am

    Format for recording of surface regularity with 3.0m straight edge for asphalt pavement courses,need an example.

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