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• W2247253460 abstract "In Malaysia the abundant availability of waste oil palm shell (OPS) had given rise to a number of researches onthe use of OPS as lightweight aggregates (LWA) to produce lightweight concrete (LWC). This paper presentsthe experimental results on mechanical properties and structural behaviour of OPS concrete (OPSC). Thebehaviour of grade 30 OPSC was compared with that of similar grade normal weight concrete (NWC). Tenpercent of silica fume and five percent of fly ash were added as mineral admixtures in the OPSC. An in-depthmix design programme was conducted to obtain the appropriate mix design for the OPSC. Mechanicalproperties investigated include compressive strength, modulus of rupture, splitting tensile strength and Young’s Modulus. To study the flexural behaviour of OPSC, four reinforced OPSC and NWC beams of size 150 mm x250 mm x 2600 mm were prepared. Each beam was tested under four point loading until failure. Theexperimental results were also compared with theoretical values and numerical analysis. The results show thatthe OPSC produced a density reduction of about 22% compared to NWC. However, the modulus of elasticity ofOPSC was found to be about 46% of NWC. Similarly, OPSC produced 15% lower modulus of rupture comparedto NWC. The flexural behaviour of OPSC beams shows superior performance compared to that of NWC. Theexperimental moment capacities of OPSC beams were found higher than the theoretical ultimate momentcapacities obtained from the theoretical values and numerical analysis. The experimental ultimate momentcapacity of OPSC beam was also found close to that of NWC beams. Though the lower modulus of rupture of OPSC resulted in early cracks, the OPSC beams exhibited a lot of cracking that resulted in smaller crackspacing and crack widths compared to NWC beams. The crack widths of OPSC beams were also found within the serviceable limit state. The ductility ratio of OPSC beams was found to be twice that of the NWC beams." @default.
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• W2247253460 date "2009-01-01" @default.
• W2247253460 modified "2023-09-24" @default.
• W2247253460 title "Structural Behaviour Of Oil Palm Shell Concrete Beams" @default.
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