A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Evaluation of Crumb Tire Rubber-Modified Hot Mix Asphalt Concrete in Sudan
Scrap tires form a major part of the world's solid waste management problem. In recent years, the waste tire problem has become so acute that there is an urgent need to find an optimum and effective way to use scrap tires in asphalt mixtures. This paper investigates used tire rubber as an asphalt modifier and its potential prospects to enhance bitumen physical and asphalt mixture properties in a hot climate like Sudan. Bitumen grade 60/70 blended with a different percentage of crumb used tire rubber. Engineering and physical properties of bitumen and bitumen/rubber mortar were evaluated. Marshall Mix was designed and used to evaluate the bituminous mixtures properties. Extensive laboratory studies and tests have been done to evaluate the effect of crumb tire rubber on bitumen and bituminous mixture concrete. The laboratory results indicated that crumb rubber modifier provides better engineering properties in terms of rheological properties, penetration, softening point, specific gravity flash and fire point tests. They further indicated that crumb rubber modifier decreases the stability and density, increases the flow, and slightly increases the air voids and the voids of mineral aggregate. The study recommended that further studies should be conducted in mixing time and temperatures as well as a field test on rubberized constructed section.
Evaluation of Crumb Tire Rubber-Modified Hot Mix Asphalt Concrete in Sudan
Scrap tires form a major part of the world's solid waste management problem. In recent years, the waste tire problem has become so acute that there is an urgent need to find an optimum and effective way to use scrap tires in asphalt mixtures. This paper investigates used tire rubber as an asphalt modifier and its potential prospects to enhance bitumen physical and asphalt mixture properties in a hot climate like Sudan. Bitumen grade 60/70 blended with a different percentage of crumb used tire rubber. Engineering and physical properties of bitumen and bitumen/rubber mortar were evaluated. Marshall Mix was designed and used to evaluate the bituminous mixtures properties. Extensive laboratory studies and tests have been done to evaluate the effect of crumb tire rubber on bitumen and bituminous mixture concrete. The laboratory results indicated that crumb rubber modifier provides better engineering properties in terms of rheological properties, penetration, softening point, specific gravity flash and fire point tests. They further indicated that crumb rubber modifier decreases the stability and density, increases the flow, and slightly increases the air voids and the voids of mineral aggregate. The study recommended that further studies should be conducted in mixing time and temperatures as well as a field test on rubberized constructed section.
Evaluation of Crumb Tire Rubber-Modified Hot Mix Asphalt Concrete in Sudan
Osman, S. A. (author) / Adam, A. A. M. (author)
Second International Conference on Sustainable Construction Materials: Design, Performance, and Application ; 2012 ; Wuhan, China
Sustainable Construction Materials 2012 ; 235-248
2012-12-13
Conference paper
Electronic Resource
English
Recycling , Tires , Solid wastes , Construction materials , Sustainable development , Cement , Concrete , Asphalts , Cracking , Aggregates , Pavements , Sudan
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