STRUCTURAL BEHAVIOUR OF BEAM WITH RECYCLED BUILDING MATERIALS

Wadhah Tawfeeq, Noof Al-Shidi, Sara Al-Saidi, Karwan Al-Mamari, Zuwaina Al-Mamari, Said Al-Zaabi
2017 International Journal of Advanced Engineering and Management Research   unpublished
Concrete block, interlock, and tiles are waste that causes environmental pollution. Approximately three quarters of volume of concrete mix is occupied by aggregate. The utilization of material previously mentioned as a course aggregate in concrete would have a positive effect on the economy and reduce environmental pollution. In this project, an experimental investigation conducted to study the flexural behaviour of beam with recycled building material as a coarse aggregate. General properties
more » ... General properties of aggregate were studied such as specific gravity, water absorption, clay percentage and Abrasion. Ten beams casted with different crushed building waste material replacement contents varying from 25%, 50%, and 100%. All the beams are simply supported and subjected to one concentrated loads at mid-span of the beam. It has found that the plain cement concrete specimen has shown a typical crack propagation pattern which leaded into splitting of beam. In cylinder the maximum tensile splitting strength was found at 50% interlock about 3.32 N/mm2.Also the maximum stress in cubes was found at 25% tiles about 38.67 N/mm2.And the maximum flexural stress for the prisms was found at 50% concrete block and 100% interlock about 5.4 N/mm2. The load carrying capacity were compared with theoretical values calculated using BS8110 (Design Manual).
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