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Fresh and hardened properties of self-compacting lightweight concrete using coarse palm oil clinker
Owi, Siew Feen1, Roslli Noor Mohamed2, Azman Mohamed3.
The utilisation of industrial waste from the palm oil industry offers benefit to the
construction industry and environment. This paper presents the experimental investigation of the
fresh and hardened properties of self-compacting lightweight concrete (SCLWC) using coarse
palm oil clinker (POC). In this study, POC, a waste by-product of palm oil mill, was utilised at
100 % full replacement of coarse aggregates in the production of self-compacting concrete (SCC).
Fresh properties of the concrete mix were determined through tests of slump flow, V-funnel, Jring,
L box and sieve segregation. Meanwhile, the hardened concrete properties were evaluated
by means of density, ultrasonic pulse velocity (UPV), compression, tensile splitting and flexural
tests. The fresh and hardened properties of SCLWC were compared to normal SCC using normal
weight coarse aggregates. Test results indicated that the SCLWC exhibited accepted selfcompacting
characteristics as recommended by European Guidelines. The SCLWC can be
classified as lightweight concrete since its hardened density at 28 days was 1985 kg/m3
and good
in quality according to its UPV values. In addition, the substitution of POC reduced the
compressive and tensile strengths of the concrete due to its lightweight and porous nature. Based
on the performance of SCLWC utilising coarse POC aggregates, the POC is potentially viable to
replace natural aggregates and suitable to be used in SCLWC.
Affiliation:
- Universiti Teknologi Malaysia, Malaysia
- Universiti Teknologi Malaysia, Malaysia
- Universiti Teknologi Malaysia, Malaysia
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