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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/5301

Title: Laser-based approach for determining flakiness index of aggregates used in pavements
Authors: Anochie-Boateng, J
Komba, J
O'Connell, J
Keywords: Laser scanning technique
Rock aggregates
Flakiness index
Road pavement
Transport
Pavements
SATC 2011
Issue Date: Jul-2011
Citation: Anochie-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 2011
Series/Report no.: Workflow request;7426
Abstract: 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.
Description: 30th Southern African Transport Conference (SATC 2011), Pretoria, South Africa, 11-14 July 2011
URI: http://hdl.handle.net/10204/5301
ISBN: 9781920017514
Appears in Collections:Infrastructure engineering
General science, engineering & technology

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