PROMOTING ACCESS TO AFRICAN RESEARCH

Journal of Civil Engineering Research and Practice

Log in or Register to get access to full text downloads.

Remember me or Register



DOWNLOAD FULL TEXT Open Access  DOWNLOAD FULL TEXT Subscription or Fee Access

Potential of waste tires as aggregates in concrete

Raphael N Mutuku, Walter O Oyawa, Job N Mogeni

Abstract


Used vehicular tires, if improperly disposed, poses serious environmental problems related to health, fire and pollution hazards. Their limited recycled uses and the high costs of shredding have led to their scattered large stockpiles in Kenya. In this study, the effect of replacing ordinary coarse aggregate in concrete with shredded rubber chips, ranging from 0% to 40%, is investigated. Results obtained show that the incorporation of varying contents of rubber chips produces concrete of reduced compressive and tensile strengths. However, flexural stress-strain characteristics of concrete incorporating rubber chips show higher energy absorption capacity. Potential use of this kind of concrete includes nonstructural purposes such as lightweight concrete walls and blocks, building facades and crash barriers.

Keywords: concrete aggregates, rubber chips, rubberized concrete, used tires, waste recycling

Journal of Civil Engineering Research and Practice Vol. 3(1) 2006: 75-84



http://dx.doi.org/10.4314/jcerp.v3i1.29155
AJOL African Journals Online