Examining Concrete Properties using Coconut Fiber Ash and Fly Ash as Partial Replacement for Cement
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International Journal of Engineering Trends and Technology (IJETT) | 
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| © 2017 by IJETT Journal | ||
| Volume-46 Number-5 |
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| Year of Publication : 2017 | ||
| Authors : Peresia Blapoh Wungko, K.Bindumathi |
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| DOI : 10.14445/22315381/IJETT-V46P241 |
Citation
Peresia Blapoh Wungko, K.Bindumathi "Examining Concrete Properties using Coconut Fiber Ash and Fly Ash as Partial Replacement for Cement", International Journal of Engineering Trends and Technology (IJETT), V46(5),238-243 April 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Abstract
Concrete is a composition of cement,
coarse aggregate, fine aggregate and water which
makes it a composite material. Fly ash which is a
waste material is used as a supplementary
cementitious material in the production of Portland
cement and when added to concrete, it gives good
workability, greater strength, decreases permeability
and increases durability. Coconut fiber is an
agricultural waste which can be burned into ash and
when added to concrete as a partial replacement of
cement, it has great potentials.
The aim of this project work is to investigate
concrete properties using coconut fiber ash and fly
ash as partial replacement for cement in regards to
the compressive strength which is investigated for
3,7, 28,56 and 90 days. Since concrete is weak in
tension due to its brittle nature, it is necessary to
conduct the split tensile strength test. Durability test
which is an important factor to prove a concrete
ability to resist weather action, chemical attack, and
abrasion while maintaining its desired engineering
properties is also investigated in this project work.
In this project work, mix proportion of M40 grade of
concrete was used for 8 mixes in accordance with IS
456: 2000 and IS 10262: 2009. These mixes were an
inclusion of separate mixes of conventional concrete
as well as different percentages of coconut fiber ash
and fly ash as a partial replacement for cement of
which the various results obtained for the partial
mixes strength will be compared to the strength of
the conventional concrete. The addition of coconut
fiber ash ranges from 20% to 40 % and fly ash
ranges from 10% to 25%.
Nowadays, regular materials used for construction
are very expensive and unaffordable by many lower
income people, thereby unaware of the usages of
some waste materials which can be partially
replaced as construction material and at the same
time reducing cost. Sensitization is to be created in
the usage of those waste materials such as coconut
fiber ash as a construction material which is also an
objective of this project work.
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Keywords
concrete, coconut fiber ash,
workability, durability, fly ash, compressive
strength, split tensile strength.