Anochie-Boateng, JosephKomba, Julius JO'Connell, Johannes S2011-11-172011-11-172011-07Anochie-Boateng, J, Komba, J and O'Connell, J. 2011. Laser-based approach for determining flakiness index of aggregates used in pavements. 30th Southern African Transport Conference (SATC 2011), Pretoria, South Africa, 11-14 July 20119781920017514http://hdl.handle.net/10204/530130th Southern African Transport Conference (SATC 2011), Pretoria, South Africa, 11-14 July 2011There are concerns about the standard methods/procedures for quantifying shape properties of rock aggregates used in road and airfield pavements. The CSIR has recently acquired a portable three-dimensional (3D) laser scanning device to address some of these concerns, i.e., to automate the determination of aggregate shape properties including form, angularity, texture, and flatness/flakiness. This paper presents a new approach to determine the flakiness index of rock aggregates used in pavements. The 3D laser device was used to directly measure the volume of aggregate samples used in five typical South African asphalt mixes. The results obtained from the laser device were used to compute flakiness index of the aggregate samples. The computed flakiness indices were in good agreement with the measurements from the standard methods, thus validating the correctness of the laser approach and the effectiveness of the volume method to compute flakiness index.enLaser scanning techniqueRock aggregatesFlakiness indexRoad pavementTransportPavementsSATC 2011Conference PresentationAnochie-Boateng, J., Komba, J. J., & O'Connell, J. S. (2011). Laser-based approach for determining flakiness index of aggregates used in pavements. http://hdl.handle.net/10204/5301Anochie-Boateng, Joseph, Julius J Komba, and Johannes S O'Connell. "Laser-based approach for determining flakiness index of aggregates used in pavements." (2011): http://hdl.handle.net/10204/5301Anochie-Boateng J, Komba JJ, O'Connell JS, Laser-based approach for determining flakiness index of aggregates used in pavements; 2011. http://hdl.handle.net/10204/5301 .TY - Conference Presentation AU - Anochie-Boateng, Joseph AU - Komba, Julius J AU - O'Connell, Johannes S AB - There are concerns about the standard methods/procedures for quantifying shape properties of rock aggregates used in road and airfield pavements. The CSIR has recently acquired a portable three-dimensional (3D) laser scanning device to address some of these concerns, i.e., to automate the determination of aggregate shape properties including form, angularity, texture, and flatness/flakiness. This paper presents a new approach to determine the flakiness index of rock aggregates used in pavements. The 3D laser device was used to directly measure the volume of aggregate samples used in five typical South African asphalt mixes. The results obtained from the laser device were used to compute flakiness index of the aggregate samples. The computed flakiness indices were in good agreement with the measurements from the standard methods, thus validating the correctness of the laser approach and the effectiveness of the volume method to compute flakiness index. DA - 2011-07 DB - ResearchSpace DP - CSIR KW - Laser scanning technique KW - Rock aggregates KW - Flakiness index KW - Road pavement KW - Transport KW - Pavements KW - SATC 2011 LK - https://researchspace.csir.co.za PY - 2011 SM - 9781920017514 T1 - Laser-based approach for determining flakiness index of aggregates used in pavements TI - Laser-based approach for determining flakiness index of aggregates used in pavements UR - http://hdl.handle.net/10204/5301 ER -