Publication: A study of the usage of palm kernel shell in light weight concrete
Date
2015
Authors
Usama Issa Ayash
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Abstract
Oil Palm Shell OPS has been used in order to produce sustainability, environmentally friendly, affordable, and lightweight constructions. Palm kernel shell has been used as waste materials in lightweight concrete from the palm oil industrial. This research involves studying the stability of palm kernel shell (PKS) concrete considered as lightweight concrete and compared the result to control concrete. The study covers their compressive strength, slump of workability, water absorption and determination of density. This paper also discusses on how to achieve low density and high compressive strength by using palm kernel shell from 0% to 100% in steps of 25%. All the Experiments have been conducted by replacing 0%, 25%, 50%, 75% and 100% of palm kernel shell. All samples were tested to investigate the compressive strength at 7, 14 and 28 days. The mix design chosen is 1: 0.15: 1.2: 1.8 (cement micro silica: sand: coarse aggregate) with water cement ratio 0.45. Nine samples have been tested in each mix. The test results showed that 25%, 50% and 75% of replacement of palm kernel shell concrete manage to produce the low density that is lightweight concrete with high compressive strength in these values of 30.2042 MPa, 25.6844 MPa and 20.012 MPa respectively at 28 days. The test result showed that 100% of replacements of palm kernel shell concrete manage to produce the low density with low compressive strength in this value of 10.097 MPa at 28 days. Comparing to control concrete, the test result for control concrete has achieved the highest compressive strength in this value of 33.0144 MPa with normal density. The results showed that it is possible to make environmentally friendly structural lightweight concrete by combing high volume waste lightweight aggregates from the palm oil industry.
Description
TA439.U82 2015
Keywords
Lightweight concrete