Anochie-Boateng, JosephKomba, Julius JTutumluer, E2012-05-042012-05-042012-02Anochie-Boateng, J, Komba, J and Tutumluer, E. 2012. Aggregate surface areas quantified through laser measurements for South African asphalt mixtures. ASCE Journal of Transportation Engineering, vol. 1(317), doi:http://dx.doi.org/10.1061/(ASCE)TE.1943-5436.00004160733-947X1943-5436http://ascelibrary.org/teo/resource/3/jtpexx/317?isAuthorized=nohttp://hdl.handle.net/10204/5835Copyright: 2012 ASCE. This is the post-print version of the work. The definitive version is published in ASCE Journal of Transportation Engineering, vol. 1(317), doi:http://dx.doi.org/10.1061/(ASCE)TE.1943-5436.0000416For several decades, efforts have been made by engineers and researchers in the road and airfield pavements, and railroads to develop methods/procedures for accurate quantification of aggregate shape and packing properties. The difficult part of the process has been the fact that aggregate particles have irregular and non-ideal shapes. New research capabilities, including laserbased technology can effectively address the difficulties associated with aggregate shape measurements to optimize asphalt mix design. This paper introduces the use of a three-dimensional (3D) laser scanning method to directly measure the surface area of aggregates used in road pavements in South Africa. As an application of the laser-based measurements, the asphalt film thicknesses of five typical South African mixtures were calculated and compared with the film thicknesses calculated from the traditional Hveem method. Based on the laser scanning method, a new surface area factors were developed for coarse aggregates used in the asphalt mixtures. Overall, the study demonstrated applicability of 3D laser scanning method to characterize coarse aggregate.enAsphalt mixturesAggregate surface areaAsphalt film thicknessSurface area factorsHveem method3D Laser scanning methodArticleAnochie-Boateng, J., Komba, J. J., & Tutumluer, E. (2012). Aggregate surface areas quantified through laser measurements for South African asphalt mixtures. http://hdl.handle.net/10204/5835Anochie-Boateng, Joseph, Julius J Komba, and E Tutumluer "Aggregate surface areas quantified through laser measurements for South African asphalt mixtures." (2012) http://hdl.handle.net/10204/5835Anochie-Boateng J, Komba JJ, Tutumluer E. Aggregate surface areas quantified through laser measurements for South African asphalt mixtures. 2012; http://hdl.handle.net/10204/5835.TY - Article AU - Anochie-Boateng, Joseph AU - Komba, Julius J AU - Tutumluer, E AB - For several decades, efforts have been made by engineers and researchers in the road and airfield pavements, and railroads to develop methods/procedures for accurate quantification of aggregate shape and packing properties. The difficult part of the process has been the fact that aggregate particles have irregular and non-ideal shapes. New research capabilities, including laserbased technology can effectively address the difficulties associated with aggregate shape measurements to optimize asphalt mix design. This paper introduces the use of a three-dimensional (3D) laser scanning method to directly measure the surface area of aggregates used in road pavements in South Africa. As an application of the laser-based measurements, the asphalt film thicknesses of five typical South African mixtures were calculated and compared with the film thicknesses calculated from the traditional Hveem method. Based on the laser scanning method, a new surface area factors were developed for coarse aggregates used in the asphalt mixtures. Overall, the study demonstrated applicability of 3D laser scanning method to characterize coarse aggregate. DA - 2012-02 DB - ResearchSpace DP - CSIR KW - Asphalt mixtures KW - Aggregate surface area KW - Asphalt film thickness KW - Surface area factors KW - Hveem method KW - 3D Laser scanning method LK - https://researchspace.csir.co.za PY - 2012 SM - 0733-947X SM - 1943-5436 T1 - Aggregate surface areas quantified through laser measurements for South African asphalt mixtures TI - Aggregate surface areas quantified through laser measurements for South African asphalt mixtures UR - http://hdl.handle.net/10204/5835 ER -