A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Quantification of Compactability of Bituminous Mixtures with Different Aggregate Gradations Using Superpave Gyratory Compactor and Shear Box Compactor
https://orcid.org/http://orcid.org/0000-0001-7053-0785
https://orcid.org/http://orcid.org/0000-0002-7091-5930
Bituminous mixtures offer varying compactive resistance due to gradation, binder type, its content, and temperature. Most of the attempts to quantify laboratory-scale compaction resistance have used Superpave Gyratory Compactor (SGC). However, SGC has criticism related to poor spatial uniformity of air voids, whereas the Shear Box Compactor (SBC) is reported to have less spatial variation in air voids. The focus of this study is to investigate and document the sensitivity of SGC and SBC on the variation in aggregate gradation during compaction. In this work, two aggregate gradations designed based on particle packing theory for achieving optimum packing, and a control sample with Bituminous Concrete mid-gradation as per the current Indian Specifications are used. Compaction curves obtained from both the compactors are analyzed in terms of various compaction indices and their correlation to laboratory rutting performance is investigated. It is identified that certain indices of SGC and SBC are sensitive to the rutting performance of the mixtures prepared with different aggregate gradation.
Quantification of Compactability of Bituminous Mixtures with Different Aggregate Gradations Using Superpave Gyratory Compactor and Shear Box Compactor
https://orcid.org/http://orcid.org/0000-0001-7053-0785
https://orcid.org/http://orcid.org/0000-0002-7091-5930
Bituminous mixtures offer varying compactive resistance due to gradation, binder type, its content, and temperature. Most of the attempts to quantify laboratory-scale compaction resistance have used Superpave Gyratory Compactor (SGC). However, SGC has criticism related to poor spatial uniformity of air voids, whereas the Shear Box Compactor (SBC) is reported to have less spatial variation in air voids. The focus of this study is to investigate and document the sensitivity of SGC and SBC on the variation in aggregate gradation during compaction. In this work, two aggregate gradations designed based on particle packing theory for achieving optimum packing, and a control sample with Bituminous Concrete mid-gradation as per the current Indian Specifications are used. Compaction curves obtained from both the compactors are analyzed in terms of various compaction indices and their correlation to laboratory rutting performance is investigated. It is identified that certain indices of SGC and SBC are sensitive to the rutting performance of the mixtures prepared with different aggregate gradation.
Quantification of Compactability of Bituminous Mixtures with Different Aggregate Gradations Using Superpave Gyratory Compactor and Shear Box Compactor
https://orcid.org/http://orcid.org/0000-0001-7053-0785
https://orcid.org/http://orcid.org/0000-0002-7091-5930
Bituminous mixtures offer varying compactive resistance due to gradation, binder type, its content, and temperature. Most of the attempts to quantify laboratory-scale compaction resistance have used Superpave Gyratory Compactor (SGC). However, SGC has criticism related to poor spatial uniformity of air voids, whereas the Shear Box Compactor (SBC) is reported to have less spatial variation in air voids. The focus of this study is to investigate and document the sensitivity of SGC and SBC on the variation in aggregate gradation during compaction. In this work, two aggregate gradations designed based on particle packing theory for achieving optimum packing, and a control sample with Bituminous Concrete mid-gradation as per the current Indian Specifications are used. Compaction curves obtained from both the compactors are analyzed in terms of various compaction indices and their correlation to laboratory rutting performance is investigated. It is identified that certain indices of SGC and SBC are sensitive to the rutting performance of the mixtures prepared with different aggregate gradation.
Quantification of Compactability of Bituminous Mixtures with Different Aggregate Gradations Using Superpave Gyratory Compactor and Shear Box Compactor
RILEM Bookseries
Di Benedetto, Hervé (editor) / Baaj, Hassan (editor) / Chailleux, Emmanuel (editor) / Tebaldi, Gabriele (editor) / Sauzéat, Cédric (editor) / Mangiafico, Salvatore (editor) / Thushara, V. T. (author) / Murali Krishnan, J. (author)
RILEM International Symposium on Bituminous Materials ; 2020 ; Lyon, France
Proceedings of the RILEM International Symposium on Bituminous Materials ; Chapter: 193 ; 1519-1525
RILEM Bookseries ; 27
2021-09-26
7 pages
Article/Chapter (Book)
Electronic Resource
English
Superpave Gyratory Compactor Provides Clues to Compactability of Mixes
British Library Online Contents | 1998
Transitioning from Texas Gyratory Compactor to Superpave Gyratory Compactor
| British Library Online Contents | 2006
Transitioning from Texas Gyratory Compactor to Superpave Gyratory Compactor
| British Library Conference Proceedings | 2006
Transitioning from Texas Gyratory Compactor to Superpave Gyratory Compactor
| British Library Conference Proceedings | 2006