Engineering properties of concrete with poly (VINYL) alcohol (PVA) treated oil palm shell (OPS) aggregates

Lim, Chee Wui (2010) Engineering properties of concrete with poly (VINYL) alcohol (PVA) treated oil palm shell (OPS) aggregates. [Final Year Project Report / IMRAD] (Unpublished)

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Abstract

Every year, waste oil palm shell (OPS) is produced in large quantities from the agriculture industry which produce pollution to the environment. Hence, there are many researches done to use waste OPS as aggregate in concrete which would contribute towards a cleaner environment and also reduce the cost of raw materials for construction. However, OPS is an organic aggregate that may decay and its properties may degrade after a certain period of time. Therefore, it is important to improve the properties of OPS with Polyvinyl Alcohol (PVA). This report presents the results of an experimental study to determine the properties of concrete with raw OPS and treated OPS aggregate. These include the fresh and hardened properties of concrete. These properties will also be compared with conventional concrete. Results obtained from the study showed that the compressive strength, flexural strength and splitting tensile strength of l 00% pre-treated OPS concrete were 28 N/mm, 3.09 N/mm and 2.87 N/mm respectively at 28 days. The 28 days air-dry density of 100% treated OPS concrete was 1804 kg/m" which is about 20% lower compared to the control concrete. Hence, the treated OPS concrete (100% replacement) still satisfied the strength and density requirement for structural lightweight concrete classification. Results showed that the workability, compressive strength, flexural strength and splitting tensile strength of the pre-treated OPS concrete has better performance compared to original OPS concrete.

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