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Effects of palm oil clinker as coarse aggregates replacement in self curing concrete

Mohd.Sam, Abdul Rahman and Mohamed, Azman and Abd. Khalid, Nur Hafizah and Abd. Kadir, Mariyana Aida and Abdul Shukor Lim, Nor Hasanah and Sulaiman, Muhd. Fauzy (2017) Effects of palm oil clinker as coarse aggregates replacement in self curing concrete. Malaysian Journal of Civil Engineering, 29 (2). pp. 241-253. ISSN 1823-7843

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Official URL: https://mjce.utm.my/index.php/MJCE/article/view/14...

Abstract

Concrete, if properly design, can be one of the most durable material and widely used in construction due to its availability and good compressive strength. A good quality concrete can be produced not only through good design of concrete mix proportions but also good and proper curing process that ensure a complete hydration process of the cement. However, sometimes proper curing process was not provided during concreting on site due to various reasons. This study investigates the effects of 10 mm crushed Palm Oil Clinker (POC) as partial aggregates replacement to act as internal reservoirs in concrete to provide internal curing process of cement. This process or technique is also popularly known as self-curing process for concrete. The POC which has the density of 780 kg/m3 was used to replace 20% of the coarse aggregates. A water/cement ratio of 0.53 was used in the concrete mix design. Three different curing conditions were employed, namely, normal water curing, air curing and 7 days in water plus outside curing conditions. The workability of the POC and control concretes was determined through slump test. The concrete samples were tested for compression at the age of 3, 7 and 28 days while concrete prisms and cylindrical samples were tested at the age of 7 and 28 days. The experimental results show that the inclusion of POC was found to increase the workability of concrete by 27% but reduced the concrete compressive strength by about 6% compared with the control concrete. In addition, the flexural and tensile strengths of POC concrete were found to be less than the control concrete due to the properties of the POC which was lightweight and porous. The experimental results show that the porous structure of the POC aggregates can be utilised as water reservoir for the process of internal curing for the self-curing concrete.

Item Type:Article
Uncontrolled Keywords:concrete, palm oil clinker, self-curing concrete, compressive strength, hydration
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:80363
Deposited By: Fazli Masari
Deposited On:10 May 2019 15:16
Last Modified:10 May 2019 15:16

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