Anochie-Boateng, JosephGeorge, Theresa B2018-06-152018-06-152017-06Anochie-Boateng, J. and George, T.B. 2017. Investigation of the use of waste crushed glass in the production of asphalt mixes. Proceedings of Institution of Civil Engineers: Construction Materials: doi.org/10.1680/jcoma.16.000841747-650X1747-6518http://www.icevirtuallibrary.com/doi/abs/10.1680/jcoma.16.00084doi.org/10.1680/jcoma.16.00084http://hdl.handle.net/10204/10266Copyright: 2017 ICE Publishing. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website.Recent study at the Council for Scientific and Industrial Research in South Africa has revealed the potential to substitute depleting natural aggregates with waste crushed glass in asphalt mixes. This paper presents an investigation of the use of crushed glass as an aggregate replacement in a conventional dense-graded asphalt wearing course commonly used on highways in South Africa. The objective of this study was to design a densegraded hot-mix asphalt that utilises 15% of waste crushed glass as a substitute material for sand, and to compare its performance with a conventional dense-graded mix. The mix design was based on current South African methods. The overall results indicate that the glass asphalt mix meets the South African criteria, thus the mix design is acceptable. The optimum binder content of the glass asphalt mix was 5·1%, compared with 5·0% for the conventional dense-graded asphalt mix. Further investigation of the stiffness and rutting performance characteristics indicated that the asphalt mix with crushed glass could outperform the conventional asphalt mix in terms of resistance to rutting. The measured performance data were used to develop semi-empirical dynamic modulus and permanent deformation models for the two asphalt mixes.enRoads sustainabilityPavement sustainabilityConstruction materials recyclingConstruction materials reuseArticleAnochie-Boateng, J., & George, T. B. (2017). Investigation of the use of waste crushed glass in the production of asphalt mixes. http://hdl.handle.net/10204/10266Anochie-Boateng, Joseph, and Theresa B George "Investigation of the use of waste crushed glass in the production of asphalt mixes." (2017) http://hdl.handle.net/10204/10266Anochie-Boateng J, George TB. Investigation of the use of waste crushed glass in the production of asphalt mixes. 2017; http://hdl.handle.net/10204/10266.TY - Article AU - Anochie-Boateng, Joseph AU - George, Theresa B AB - Recent study at the Council for Scientific and Industrial Research in South Africa has revealed the potential to substitute depleting natural aggregates with waste crushed glass in asphalt mixes. This paper presents an investigation of the use of crushed glass as an aggregate replacement in a conventional dense-graded asphalt wearing course commonly used on highways in South Africa. The objective of this study was to design a densegraded hot-mix asphalt that utilises 15% of waste crushed glass as a substitute material for sand, and to compare its performance with a conventional dense-graded mix. The mix design was based on current South African methods. The overall results indicate that the glass asphalt mix meets the South African criteria, thus the mix design is acceptable. The optimum binder content of the glass asphalt mix was 5·1%, compared with 5·0% for the conventional dense-graded asphalt mix. Further investigation of the stiffness and rutting performance characteristics indicated that the asphalt mix with crushed glass could outperform the conventional asphalt mix in terms of resistance to rutting. The measured performance data were used to develop semi-empirical dynamic modulus and permanent deformation models for the two asphalt mixes. DA - 2017-06 DB - ResearchSpace DP - CSIR KW - Roads sustainability KW - Pavement sustainability KW - Construction materials recycling KW - Construction materials reuse LK - https://researchspace.csir.co.za PY - 2017 SM - 1747-650X SM - 1747-6518 T1 - Investigation of the use of waste crushed glass in the production of asphalt mixes TI - Investigation of the use of waste crushed glass in the production of asphalt mixes UR - http://hdl.handle.net/10204/10266 ER -