DSpace
 

Researchspace >
General science, engineering & technology >
General science, engineering & technology >
General science, engineering & technology >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/5300

Title: Effect of sample geometry on bulk relative density of hot-mix asphalt mixes
Authors: Anochie-Boateng, J
Komba, J
Ventura, D
Verhaeghe, B
Keywords: Bulk relative density
Hot mix asphalt
Air voids
Saturated surface dry
Vacuum sealing
Asphalt pavements
CAPSA 2011
Issue Date: Sep-2011
Citation: Anochie-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 2011
Series/Report no.: Workflow request;7432
Abstract: 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.
Description: 10th Conference on Asphalt Pavements for Southern Africa (CAPSA 2011), Champagne Sports Resort, KwaZulu-Natal, South Africa, 11-14 September 2011
URI: http://hdl.handle.net/10204/5300
ISBN: 9780620514149
Appears in Collections:Infrastructure engineering
General science, engineering & technology

Files in This Item:

File Description SizeFormat
Anochie-Boateng3_2011.pdf267.65 kBAdobe PDFView/Open
View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback