EXPERIMENTAL STUDY ON BEHAVIOUR OF PAVER BLOCK USING CRUSHED RUBBER POWDER

The durability and aesthetic aspects of concrete paver blocks made them as an excellent material choice for construction of driveways, walkways, retaining walls, patios and other flat outdoor spaces. Interlocking Concrete Block Pavement (ICBP) has been extensively used in a number of countries as a specialized problem-solving technique for providing pavement in areas where conventional types of construction are less durable due to many operational and environmental constraints. But now being adopted extensively in different uses where the conventional construction of pavement using hot bituminous mix or cement concrete technology is not feasible or desirable. Waste tyres in India are categorized as solid waste or hazardous waste. It is estimated that about 60% of waste tyres are disposed through unknown routes in the urban as well as rural areas. The hazards of waste tyres include air pollution associated with open burning of tyres cause odour, visual impacts, and other harmful contaminants which is the major reason for green-house effect and the consequent hazards. By considering the advantages of rubber pads, in this project the rubber powder is used as a cement replacing material in Concrete paver blocks in order to increase the strength of paver and to reduce the emitted carbon di oxide percentage while casting cement concrete paver. The optimum percentage of the rubber pad is finalized from the results of the experimental work and preferred for the pavement works. By replacing 20% of rubber powder for cement is used to obtain the compressive strength of 51Mpa and impact strength of 15 blows. Therefore by replacing the cement by rubber powder is increase the compressive and impact strength of paver block upto 50%.