Paige-Green, PPinard, MI2012-11-142012-11-142012-09Paige-Green, P and Pinard, MI. Optimum design of sustainable sealed low volume roads using the Dynamic Cone Penetrometer (DCP). 25th ARRB Conference: Shaping the future: Linking policy, research and outcomes, Perth, Australia, 23-26 September 2012http://hdl.handle.net/10204/631125th ARRB Conference: Shaping the future: Linking policy, research and outcomes, Perth, Australia, 23-26 September 2012Sustainable upgrading of unsealed roads to a low volume sealed standard is best accomplished by maximising the use of the in situ materials within the prevailing road environment. Over the years and under traffic loading, unsealed roads achieve a significant degree of subgrade compaction, localised weak areas tend to become strengthened and an accumulation of residual gravel wearing course provides a sound support or foundation for the new road. Optimising the use of these conditions usually results in a reduction in the need to import large quantities of virgin material. Appropriate testing with the simple DCP test device can be used to assess the in situ conditions including material quality and moisture regimes along the road alignment. This information can be used to identify uniform sections; the in situ layer strength diagrams of each of these sections can then be analysed with respect to the estimated traffic to determine the layer quality and thicknesses for a sustainable design. Estimation of the expected traffic can often be a problem in such situations and guidelines to assist in this regard are presented. Data from various road sections in Southern Africa are used to support the discussion.enLow volume roadDynamic Cone PenetrometerDCPUnsealed roadsSitu materialsTraffic loadingResidual gravelMoisture regimesConference PresentationPaige-Green, P., & Pinard, M. (2012). Optimum design of sustainable sealed low volume roads using the Dynamic Cone Penetrometer (DCP). http://hdl.handle.net/10204/6311Paige-Green, P, and MI Pinard. "Optimum design of sustainable sealed low volume roads using the Dynamic Cone Penetrometer (DCP)." (2012): http://hdl.handle.net/10204/6311Paige-Green P, Pinard M, Optimum design of sustainable sealed low volume roads using the Dynamic Cone Penetrometer (DCP); 2012. http://hdl.handle.net/10204/6311 .TY - Conference Presentation AU - Paige-Green, P AU - Pinard, MI AB - Sustainable upgrading of unsealed roads to a low volume sealed standard is best accomplished by maximising the use of the in situ materials within the prevailing road environment. Over the years and under traffic loading, unsealed roads achieve a significant degree of subgrade compaction, localised weak areas tend to become strengthened and an accumulation of residual gravel wearing course provides a sound support or foundation for the new road. Optimising the use of these conditions usually results in a reduction in the need to import large quantities of virgin material. Appropriate testing with the simple DCP test device can be used to assess the in situ conditions including material quality and moisture regimes along the road alignment. This information can be used to identify uniform sections; the in situ layer strength diagrams of each of these sections can then be analysed with respect to the estimated traffic to determine the layer quality and thicknesses for a sustainable design. Estimation of the expected traffic can often be a problem in such situations and guidelines to assist in this regard are presented. Data from various road sections in Southern Africa are used to support the discussion. DA - 2012-09 DB - ResearchSpace DP - CSIR KW - Low volume road KW - Dynamic Cone Penetrometer KW - DCP KW - Unsealed roads KW - Situ materials KW - Traffic loading KW - Residual gravel KW - Moisture regimes LK - https://researchspace.csir.co.za PY - 2012 T1 - Optimum design of sustainable sealed low volume roads using the Dynamic Cone Penetrometer (DCP) TI - Optimum design of sustainable sealed low volume roads using the Dynamic Cone Penetrometer (DCP) UR - http://hdl.handle.net/10204/6311 ER -