Development of a Crumb Rubber Modified (CRM) Asphalt Concrete Mix Design PDF Download

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Development of a Crumb Rubber Modified (CRM) Asphalt Concrete Mix Design

Development of a Crumb Rubber Modified (CRM) Asphalt Concrete Mix Design PDF Author: Mustaque Hossain
Publisher:
ISBN:
Category : Asphalt-rubber
Languages : en
Pages : 112

Book Description
The objective of this project was to develop an asphalt mix design method incorporating crumb rubber and using the "Wet" or "Dry" method of producing Crumb Rubber Modified Asphalt (CRM). Several resurfacing projects have been constructed using both the "Wet" and "Dry" methods. Based on this study, the Kansas Department of Transportation could use CRM mixes with a binder content between 7.5% and 9.0% depending on the percent air voids, with 19% to 22% rubber content. In this study, it was observed that using 24% rubber produced mixes that were too sticky to manage. With a rubber content of less than 18% combined with AC-5 it was difficult to satisfy the minimum viscosity requirements. Fracture tests can be used as a basis to determine the optimum binder content for any asphalt-rubber mix.
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