Anochie-Boateng, JosephKomba, Julius JVentura, DVerhaeghe, Benoit MJA2011-11-172011-11-172011-09Anochie-Boateng, J, Komba, J, Ventura, D and Verhaeghe, B. 2011. Effect of sample geometry on bulk relative density of hot-mix asphalt mixes. 10th Conference on Asphalt Pavements for Southern Africa (CAPSA 2011), Champagne Sports Resort, KwaZulu-Natal, South Africa, 11-14 September 20119780620514149http://hdl.handle.net/10204/530010th Conference on Asphalt Pavements for Southern Africa (CAPSA 2011), Champagne Sports Resort, KwaZulu-Natal, South Africa, 11-14 September 2011This study emanated from the revision of South African mechanistic-empirical pavement design method. At the CSIR road pavement laboratory, the bulk relative density (BRD) of compacted hot-mix asphalt (HMA) mixes is determined on cores and beams with different number of cut/cored surfaces. Significant variations in voids were observed in the HMA core and beam samples from the same compacted slabs. The objective of this paper is to present the findings of the effect of specimen geometry and cut surfaces on BRD, and the calculated air voids of five South African HMA mixes using the conventional saturated surface dry and the vacuum sealing methods. The BRD results obtained from the two methods showed that the number of cut surfaces significantly affects the BRD of the compacted samples used for this study. However, the BRDs/air voids were comparable regardless of the sample geometry. It is suggested that compacted samples prepared for the determination of HMA properties such as permanent deformation and fatigue life should have the same number of cut surfaces regardless of the sample geometry.enBulk relative densityHot mix asphaltAir voidsSaturated surface dryVacuum sealingAsphalt pavementsCAPSA 2011Conference PresentationAnochie-Boateng, J., Komba, J. J., Ventura, D., & Verhaeghe, B. M. (2011). Effect of sample geometry on bulk relative density of hot-mix asphalt mixes. http://hdl.handle.net/10204/5300Anochie-Boateng, Joseph, Julius J Komba, D Ventura, and Benoit MJA Verhaeghe. "Effect of sample geometry on bulk relative density of hot-mix asphalt mixes." (2011): http://hdl.handle.net/10204/5300Anochie-Boateng J, Komba JJ, Ventura D, Verhaeghe BM, Effect of sample geometry on bulk relative density of hot-mix asphalt mixes; 2011. http://hdl.handle.net/10204/5300 .TY - Conference Presentation AU - Anochie-Boateng, Joseph AU - Komba, Julius J AU - Ventura, D AU - Verhaeghe, Benoit MJA AB - This study emanated from the revision of South African mechanistic-empirical pavement design method. At the CSIR road pavement laboratory, the bulk relative density (BRD) of compacted hot-mix asphalt (HMA) mixes is determined on cores and beams with different number of cut/cored surfaces. Significant variations in voids were observed in the HMA core and beam samples from the same compacted slabs. The objective of this paper is to present the findings of the effect of specimen geometry and cut surfaces on BRD, and the calculated air voids of five South African HMA mixes using the conventional saturated surface dry and the vacuum sealing methods. The BRD results obtained from the two methods showed that the number of cut surfaces significantly affects the BRD of the compacted samples used for this study. However, the BRDs/air voids were comparable regardless of the sample geometry. It is suggested that compacted samples prepared for the determination of HMA properties such as permanent deformation and fatigue life should have the same number of cut surfaces regardless of the sample geometry. DA - 2011-09 DB - ResearchSpace DP - CSIR KW - Bulk relative density KW - Hot mix asphalt KW - Air voids KW - Saturated surface dry KW - Vacuum sealing KW - Asphalt pavements KW - CAPSA 2011 LK - https://researchspace.csir.co.za PY - 2011 SM - 9780620514149 T1 - Effect of sample geometry on bulk relative density of hot-mix asphalt mixes TI - Effect of sample geometry on bulk relative density of hot-mix asphalt mixes UR - http://hdl.handle.net/10204/5300 ER -