From the twentieth first century to date, the world has seen a rapid production of non-biodegradable materials like rubber with some having less than a decade expiry date such as vehicle tyres. This has generated enormous amount of solid waste which can be best managed by recycling methods; recycling in concrete is one possible means of achieving this goal since it’s the single most widely used material in the world. Although concrete compressive strength is reduced by addition of rubber depending on the percentage of rubber added and the average size of rubber used as aggregate. This study investigates Rubberized Bama Gravel concrete (RBGC) when three varied contents of rubber (10%, 20% and 30% by mass) were used to replace the mineral aggregate for both fine and coarse rubber aggregates respectively as compared to the controlled mix. A mix ratio of 1:1½:3 and 1:2:4, and water cement ratio of 0.5 and 0.6 were respectively used during the investigation. Tests carried out on Bama aggregate were specific gravity, aggregate impact and aggregate crushing; and on concrete are workability, density and destructive compressive strength. The study has shown that rubberized concrete is weak in compressive strength. But they have good water resistance with low absorption, low shrinkage and high impact resistance.The reduction in compressive strength of 10% fine rubber aggregate is about 10% which could be used as a structural member, while others (20%, 30% fine rubber aggregate and 10%, 20%, 30% chipped rubber aggregate) cannot be used as structural members as there is a significant decrease in compressive strength of concrete but rather as floors, kerbs, blocks and other non-structural.
Rubberized Concrete, Bama Gravel, Structural Member
- Almaleeh, A. M., Shitote, S. M., & Nyomboi, T. (2017). Use of waste rubber tyres as aggregate in concrete. Journal of Civil Engineering and Construction Technology, 8(2), 11-19.
- British Standards Institution (BSI) (2002), BS EN 12390-3:2002: Testing hardened concrete —Part 3: Compressive strength of test specimens, BSI, London.
- British Standards Institution (BSI) (2000), BS 410-1: 2000 Test sieves. Technical requirements and testing. Test sieves of metal wire cloth
- British Standards Institution (BSI) (2000), BS 410-2: 2000 Test sieves. Technical requirements and testing. Test sieves of perforated metal plate.
- British Standards Institution (BSI) (2000a), BS EN 12350-2:2000: Testing fresh concrete. Part 2: Slump test, BSI, London.
- British Standards Institution (BSI) (1992), BS 882:1992: Specification for aggregates from natural sources for concrete, BSI, London.
- British Standards Institution (BSI) (1990), BS 812-110:1990: Testing aggregates- Methods for determination of aggregate crushing value, BSI, London.
- British Standards Institution (BSI) (1990), BS 812-112:1990: Testing aggregates- Methods for determination of aggregate impact value, BSI, London.
- British Standards Institution (BSI) (1986), BS 3148:1986 Method of test for water for making concrete, BSI, London.
- Kamil, E., Kaloush, George, P. E., B., W., & P.E., H. Z. (2005). Properties of crumb Rubber Concrete. Journal of the Transportation Research Board under the category Materials and Construction, 2, 8-14.
- Mavoulidou, M., & Figueiredo, J. (2010). Discarded Tyre Rubber As Concrete Aggregate:A Possible Outlet For Used Tyres. Global NEST Journal, 12(4), 359-367.
- Onundi, L. O., Izam, Y. D., & Umar, S. G. (1999). The categorization and assessment of a Local aggregate, Bama gravel for the production of a medium grade concrete. Nigeria journal of Practical Engineering, 1, 32-33.
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