Mechanistic Laboratory Evaluation and Field Construction of Recycled Concrete Materials for Use in Road Substructures

Autor:	Brian D. Taylor, Curtis F Berthelot, Diana Podborochynski, Duane Guenther, Rielle Haichert, Colin Wandzura
Rok vydání:	2010
Předmět:	business.industry Mechanical Engineering Rubble Urban infrastructure engineering.material Urban road Civil engineering Field (computer science) law.invention Asphalt concrete Portland cement Constructability Land reclamation law engineering business Civil and Structural Engineering
Zdroj:	Transportation Research Record: Journal of the Transportation Research Board. 2167:41-52
ISSN:	2169-4052 0361-1981
DOI:	10.3141/2167-05
Popis:	Given the renewal of urban infrastructure and the increased costs of landfilling concrete rubble materials, opportunities exist to optimize the reclamation and recycling of portland cement concrete (PCC) and hot-mix asphalt concrete (HMAC) rubble through their innovative use in road rehabilitation. The primary objective of this study was to demonstrate the ability to reclaim, process, and recycle stockpiled concrete materials to provide improved structural mechanistic–climatic material properties and to meet or exceed the mechanical properties of conventional granular road materials. This research was based on advancements made in 2009 as part of the Green Streets Infrastructure Program in the city of Saskatoon, Saskatchewan, Canada. A second objective of this research was to pilot the field application of reclaimed and recycled HMAC and PCC rubble in typical urban road reconstruction applications. Recycled HMAC and PCC materials were used in the pilot reconstruction of a road that was exhibiting substructure moisture problems and structural failure. This study showed that recycled HMAC and PCC rubble materials could be processed to achieve mechanistic laboratory properties that exceeded those of conventional granular-based materials. This study also demonstrated efficient constructability and high end-product structural asset value of a typical rehabilitated urban road structure test section in the city of Saskatoon by using recycled HMAC and PCC rubble. On the basis on these findings, the use of quality processed HMAC and PCC rubble materials for road reconstruction was found to be a technical and environmentally sustainable solution.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a8a263d6bea383cdf9778c514cebabc8 https://doi.org/10.3141/2167-05 Zobrazit plný text záznamu