The effect of crumb rubber in dense graded and open graded cold mixture asphalt

Author:

Wulandari P S,Tjandra D

Abstract

Abstract Recycling tires is one of the eco-friendly way for reducing environmental problems. Incorporating crumb rubber in asphalt mixtures is an alternative way for reusing the end-of-life tires in road construction. The main purpose of this study is to evaluate the cold mix asphalt incorporating crumb rubber as a substitute for a part of fine aggregates. In this study, the aggregate gradations for mix design were selected according to the specification, Dense Graded Emulsion Mixtures (DGEM) Type IV and Open Graded Emulsion Mixtures (OGEM) Type E/20. The design bitumen content in this study was optimized for stability, void in mixture (porosity), and density. Crumb Rubber (CR) emulsion mixtures were made with optimum bitumen content at 8% by mass of total mixture for DGEM and OGEM. In order to incorporate crumb rubber into the cold emulsion mixtures, laboratory testing were performed for 25% and 50% of fine aggregates replaced with an equal volume of crumb rubber. In general, CR emulsion mixtures showed good results in all parameters. The CR emulsion mixtures also had a good comparison to hot mix asphalt specification for medium volume traffic loads with porosity less than 10%. From this study, crumb rubber can be recommended as a substitution material of fine aggregates in cold mix asphalt.

Publisher

IOP Publishing

Subject

General Engineering

Reference10 articles.

1. Effect of Crumb Rubber as Fine Aggregate Replacement in Cold Mixture Asphalt;Wulandari;Civil Engineering Dimension,2019

2. The use of crumb rubber for replacing fine aggregate in cold mixture asphalt;Wulandari;IOP Conference Series: Materials Science and Engineering,2019

3. Properties of Cold Asphalt Emulsion Mixtures (CAEMs) using materials from old road pavement milling;Thanaya;Procedia Engineering,2014

4. Review and Recommendation of Cold Asphalt Emulsion Mixtures (CAEMs) Design;Thanaya;Civil Engineering Dimension,2007

5. Crumb rubber asphalt mixtures: A literature review;Picado-Santos;Construction and Building Materials,2020

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