A STUDY ON THE EFFECTS OF THE REPLACEMENT OF COCONUT SHELL AS COARSE AGGREGATE IN CONCRETE

Abstract
In this constructed environment, the rising cost of building construction materials is the factor of
great concern. The prices of building materials are rising day by day. The coarse aggregates are
the main ingredients of concrete.
In this study, coconut shell is used as lightweight aggregate in concrete. The properties of coconut
shell and coconut shell aggregate concrete is examined and the use of coconut shell aggregate in
construction is tested. Coconut shell exhibits more resistance against crushing compared to
conventional aggregate. Density of coconut shell is 521.5 kg /m3 and these is within the specified
limits for lightweight aggregate. There is no need to treat the coconut shell before use as an
aggregate. A water cement ratio of 0.5has been used throughout the project.
Properties of coconut shell aggregate concrete were studied and compared with the control
concrete. Compressive and tensile tests on hardened concrete was performed.
Use of coconut shell aggregate concrete as structural lightweight concrete is recommended.
Coconut shell aggregate is a potential construction material and simultaneously reduces the
environmental problem of solid waste and is readily available at a lower cost than normal
aggregates.

 

AttachmentSize
Imani Yusuf Taherali.pdf566.17 KB
imani.docx10.81 KB