STUDY OF ADDITIONAL COCONUT SHELL ASH AGAINST COMPRESSIVE STRENGTH AND AIR CAVITIES ON K-300 QUALITY CONCRETE

Cahyo Prabowo, Bowo (2021) STUDY OF ADDITIONAL COCONUT SHELL ASH AGAINST COMPRESSIVE STRENGTH AND AIR CAVITIES ON K-300 QUALITY CONCRETE. Other thesis, Universitas Darul Ulum.

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Abstract

Concrete is one of the most important materials
and most often used in the building and construction sector
in Indonesia. Cement as one of the constituents of concrete can be
cause damage to the environment, starting from taking
raw materials, the production process to the ash pollution caused.
Therefore, alternative materials are needed that can be used
as a substitute for cement by utilizing waste
organic, like coconut shell ash, remembering the coconut shell
has the potential to cause organic waste which is still very low
processing. In this study, it is expected that the number of
cement in concrete can be reduced by investigating the potential
coconut shell ash as a substitute for cement in percentage
and its effect on the compressive strength of concrete.
The research method used is the study
experimental in the laboratory. In this study, 6
(six) variations in the percentage of coconut shell ash, namely 0% (control); 4%;
8%; 12%; 16%; and 20% of the initial cement weight with an amount of
the test object for each percentage variation is 3. Compressive strength testing
concrete is carried out when the concrete reaches the age of 7 days, 14 days and 28
day.
The results of the study found that in a strong test,
The normal compressive strength of 28 days old concrete is 300 kg/cm2 with a value of
air cavity by 0.023%. While the value of the optimum compressive strength
concrete with a mixture of coconut shell ash at the age of 28 days is
as much as 4% with a compressive strength value of 319.11 kg/cm2 or an increase of 6.37%
than normal concrete. While the value of the smallest air cavity is
in a mixture of 8% coconut shell ash with a value of 0.011%.

Item Type: Thesis (Other)
Uncontrolled Keywords: coconut shell ash, beton ramah lingkungan, kuat tekan beton
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TH Building construction
University Structure > Fakultas Teknik > Teknik Sipil
University Structure > Fakultas Teknik > Teknik Sipil
Divisions: Fakultas Teknik > Teknik Sipil
Depositing User: iwan cahyono
Date Deposited: 20 Oct 2021 14:27
Last Modified: 20 Oct 2021 14:27
URI: http://repository.undar.ac.id/id/eprint/1724

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