Recycled materials paper
Li, D, Mills, JE, Benn, BT & Ma, X 2014, 'Abrasion and impact resistance investigation of crumbed rubber concrete (CRC)', in ST Smith (ed.), 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23), vol. I, Byron Bay, NSW, 9-12 December, Southern Cross University, Lismore, NSW, pp. 255-260. ISBN: 9780994152008.
Large volumes of rubber tyres are disposed of annually and only a small quantity are recycled. This paper examines the abrasion and impact resistance of crumbed rubber concrete (CRC), which uses crumbed rubber from used tyres as a partial replacement for the fine aggregate. Furthermore styrenebutadiene rubber (SBR) latex was added to some of the crumb rubber mixes to gauge its effect. Laboratory tests focused on the slump, compression strength, abrasion and impact resistance of traditional concrete, rubberized concrete with rubber content of 10% and 20% and SBR modified rubberized concrete. A comparison of the experimental results for the abrasion resistance and impact resistance of traditional concrete, rubberized concrete and rubberized concrete with SBR latex was conducted. Test results indicated that although rubberized concrete had slightly lower compression strength than traditional concrete it is still possible to produce rubberized concrete with satisfactory strength using good concrete mix design and appropriate rubber content. Results also showed that CRC has better impact and abrasion resistance than traditional concrete.