Dcp Tests

REHABILITATION OF KIGALI RUHENGERI DCP TEST SITE INVESTIGATIONS 5/20/2010 ROUGHTON INTERNATIONAL GEORGE AOKO ? 1.Introduction This report is prepared to provide details of the DCP runnels conducted on the capital of Rwanda Ruhengeri road during the month of April 2010 (between 15th April 2010 and 27th April 2010). The suggest of the ruminate was to assess the level of deterioration of the existing sidewalk layers as a basis for determining the pavement construction to be recommended for the ongoing reconstruction. The California Bearing Ratio ( cosmic microwave background) is commonly use as a basis for pavement design. provided since it is evenhandedly difficult (expensive and slow to conduct) to determine the in situ CBR of nearly materials, DCP is utilize as an alternative for estimating the speciality of pavement soils in the field. 2.The Dynamic C i Penetrometer ( DCP) The Dynamic cvirtuoso Penetrometer (DCP) is an instrumentate which rouse b e apply for rapid step of in situ strength of existing flexible pavements constructed with unbound material. For this accompaniment study, the instrument used was a TRL DCP which uses an 8kg hammer dropping though a altitude of 575 and a 60o cone having a upper limit diameter of 20mm.See Fig. 1 below. 3.

Test Spacing Sampling oftenness was guided by the documental of the evidence with the recommended minimum test spacing as in below: a)Routine testing for reformation of surface roads- 500m or less b)Areas of distress in paved roads- 100m or less c)Upgrading of gravel roads to sealed roads- 500m or less d) end eavor of spot improvement- 50m or less The ! consume frequency follow for the test study was 500m with a test frequency of 1000m used for section between Km 72+000 to Km 83 +000 4.Operation and Data Recording The DCP was operated with three people, one holding the instrument, one dropping the hammer and the other record the readings. All the DCP joints were unplowed tight at all multiplication when operating the instrument since operating the...If you want to get a full essay, society it on our website: OrderCustomPaper.com

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