The penetration rate may be related to in situ strength such as an estimated in situ cbr california bearing ratio. Irc flexible pavement design notes road surface asphalt. Pdf standard test method for use of the dynamic cone. Resilient modulus prediction of soft lowplasticity piedmont residual. A minimum dcp blow count of 16 for the bottom 8 in. Cbr value estimation using dynamic cone penetrometer 261 it can be observed from the results that soil is almost uniform for all the 8 locations with sand content varying from 63. Soil is non plastic in nature with liquid limit ranging between 16. The guidelines for preparation of samples, testing and acceptance criteria are given in subparas given below. Scribd is the worlds largest social reading and publishing site. The schematic for the dcp is shown in figure 1 source. A survey stake may be used to mark each blow during test. Report date february 2009 using the dynamic cone penetrometer and light weight 6. Astm d6951d6951m standard test method for use of the.
Dcp total number of blows number of blows between test readings cumulative penetration in. The length of the upper shaft allows the hammer to drop a distance of 575 mm 22. An astm designation number identifies a unique version of an astm standard. Dcp testing consists of using the dcps freefalling hammer to strike the cone, causing the cone. Rotary hammer drill capable of drilling at least a 1. Dcp testing consists of using the dcps freefalling hammer to. Astm d695103, standard test method for use of dynamic cone penetrometer in shallow pavement applications 2.
Astm d7380 standard test method for soil compaction determination at shallow depths using 5lb 2. Irc flexible pavement design notes free download as pdf file. Astm d6951 d6951m 09 standard test method for use of. D6951d6951m 09 standard test method for use of the dynamic cone penetrometer in shallow pavement applications1 this standard is issued under the. D6951 d6951m 09 standard test method for use of the dynamic cone penetrometer in shallow pavement applications, adcp, aggregate base testing, california bearing ratio, cbr, dcp, disposable cones, dualmass hammer, dynamic cone penetrometer, in situ testing, paving material testing, shear strength, subgrade testing, california bearing ratio cbr, dualmass hammer, dynamic cone penetrometer. Request pdf onfield assessment of subgrade uniformity using dcp one of the key parameters for the performance of a pavement is uniformity of its subgrade.
Using dynamic cone penetrometer tester to determine cbr and. Cbr value estimation using dynamic cone penetrometer. Raise the hammer to its upper limit, using caution to not lift the shaft and break. The upper shaft is a 16mm 58inch diameter steel shaft on which the hammer moves. The chemically modified soil lift shall meet the following requirements for compaction. This standard is issued under the fixed designation d 6951. In 2004, the astm d695103 standard test method for use of the. Acceptance testing shall be performed with a dynamic cone.
D6951d6951m09 standard test method for use of the dynamic cone penetrometer in shallow pavement applications, 2009 you currently cannot view this content. Procedure refer to astm d 6951 section six 6 for operation of dcp. Refer to astm d 6951 section five 5 for equipment specifications. The dcp test procedure is currently standardized by both astm d 695103 and the mndot. Dynamic cone penetrometer can be abbreviated to the letters. I am not sure if the suggestions here were based on hypothetical or real sea. Using the dynamic cone penetrometer and light weight. A soil density may be estimated note 1 if the soil type and. Active standard astm d6951 d6951m developed by subcommittee. This test method is used to assess in situ strength of undisturbed soil and compacted materials or both. D6951d6951m 09 standard test method for use of the dynamic cone penetrometer in shallow pavement applications, adcp, aggregate base testing, california bearing ratio, cbr, dcp, disposable cones, dualmass hammer, dynamic cone penetrometer, in situ testing, paving material testing, shear strength, subgrade testing, california bearing ratio cbr, dualmass hammer.