A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fibers from Recycled Tire as Reinforcement in Hot Mix Asphalt
Previous laboratory and field research has demonstrated that virgin synthetic and cellulose fibers provide important attributes for hot mix asphalt (HMA): reduced asphalt (mastic) draindown during construction for certain types of mixtures, reinforcement which significantly reduces cracking; and, in some cases, reduced rutting. By-product fibers from grinding of scrap tires offer an excellent, low-cost alternative to virgin and cellulose fibers. Currently, most of these fibers are being disposed of in landfills or incinerated. Two types of recycled tire fibers were evaluated to determine whether they can be used in different types of HMA mixtures as a replacement of currently used cellulose fibers or mineral fiber. The researchers tested three different types of mixtures: stone mastic asphalt (SMA), permeable friction course (PFC), and coarse mix high binder (CMHB) mixtures with two different types of recycled tire fibers, one cellulose fiber, and no fiber. HMA specimens were prepared using all of these combinations and tested using several common laboratory test procedures. The laboratory tests used to evaluate the mixtures were: draindown test, dynamic modulus test, overlay test, indirect tensile strength test, and Hamburg wheel tracking test.
Fibers from Recycled Tire as Reinforcement in Hot Mix Asphalt
Previous laboratory and field research has demonstrated that virgin synthetic and cellulose fibers provide important attributes for hot mix asphalt (HMA): reduced asphalt (mastic) draindown during construction for certain types of mixtures, reinforcement which significantly reduces cracking; and, in some cases, reduced rutting. By-product fibers from grinding of scrap tires offer an excellent, low-cost alternative to virgin and cellulose fibers. Currently, most of these fibers are being disposed of in landfills or incinerated. Two types of recycled tire fibers were evaluated to determine whether they can be used in different types of HMA mixtures as a replacement of currently used cellulose fibers or mineral fiber. The researchers tested three different types of mixtures: stone mastic asphalt (SMA), permeable friction course (PFC), and coarse mix high binder (CMHB) mixtures with two different types of recycled tire fibers, one cellulose fiber, and no fiber. HMA specimens were prepared using all of these combinations and tested using several common laboratory test procedures. The laboratory tests used to evaluate the mixtures were: draindown test, dynamic modulus test, overlay test, indirect tensile strength test, and Hamburg wheel tracking test.
Fibers from Recycled Tire as Reinforcement in Hot Mix Asphalt
A. Chowdhury (author) / J. W. Button (author) / A. Bhasin (author)
2006
62 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Highway Engineering , Solid Wastes Pollution & Control , Recycling , Tires , Fibers , Asphalts , Hot mix paving mixtures , Recycled materials , Asphalt pavements , Construction materials , Rubber , Binders , Tensile strength , Laboratory tests , Evaluation
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