1Department of Civil Engineering, Afe Babalola University, Ekiti, Nigeria
2Department of Civil Engineering, Landmark University, Omu-Aran, Nigeria
Online published on 8 November, 2017.
This study is focused on assessing the effectiveness of palm kernel shell (PKS) as partial replacement aggregates for normal concrete. The tests carried out on PKS concrete at a constant water cement ratio of 0.5 with mix ratios 1: 2: 4 and 1½: 1: 3 with PKS varied from 0%-30%. The results of the slump and compaction factor test showed that all mixes were workable for all replacement levels considered. The compressive strength values obtained ranges between 32.2N/mm2-13.4N/mm2 with implies that, the addition of PKS in the production of light weight concrete is suitable for both mix ratios. The cost analysis also revealed reduction in cost by 6.5%, 13% and 19.5% for PKS replacement at 10%, 20% and 30% respectively. It is concluded that PKS is effective, less expensive as partial replacement aggregates and also reduces environmental pollution.
Concrete, Compressive strength, aggregates, cement, slump and PKS
