20-10-2014, 10:10 AM
Abstracts: The amount of waste tyres increasing the environmental and aesthetic pollution, utilization of waste tyres in size aggregate in the various bituminous mixes if it cut in the form of aggregate, called "rubber aggregate" which reduces the pollution with the use of conventional aggregate available in exhaustible quantity.Crumb Rubber Modified Bitumen (CRMB) is hydrocarbon binder obtained through physical and chemical interaction of crumb rubber (produced by recycling of used tyres) with bitumen and some specific additives. The Flextal range of CRMB offers binders which are stable and easy to handle with enhanced performances. CRMB is suitable for pavements submitted to all sorts of weather conditions, highways, traffic denser roads, junctions, heavy duty and high traffic sea port roads etc. It is a durable and economical solution for new construction and maintenance of wearing courses. Bitumen modification was made with the activated crumb rubber concentrate and its efficacy was examined in terms of its consistency and rheological properties.