CD Skripsi

Analisis Kuat Tekan Dan Workability Bata Ringan Cellular Lightweight Concrete Dengan Substitusi Kalsium Karbonat

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ABSTRACT
The development of the times in the field of science continues to increase every
year, giving rise to new ideas, especially in the field brick wall construction. The
wall construction has new innovations,namelylightweight brick as a substitute for
conventional red brick. Lightweight bricks are made by including air bubbles in
the mortar mixture, so that the brick weight becomes lighter. One of the main
building blocks of lightweight bricks is cement which is a factor in the strength of
lightweight bricks. The non-renewable nature of cement makes cement prices
increasingly expensive from time to time, resulting in innovations using other
materials that can be used as partial substitutes for cement, namely calcium
carbonate. The study aims to identify the optimal composition of cellular
lightweight concrete, with a mixture of calcium carbonate as a substitute for the
amount of cement based on the compressive strength of the trial sample and flow
table with the planned percentage of calcium carbonate variation. The test object
in the form of a trial sample in the form of a cube is made to have a size of 10 cm
on each side with 5 variations of substitution of calcium carbonate (CaCO3) 0%,
5%, 10%, 15% and 20% of the cement amount, each variation has 12 samples.
Next, do a flow table test to measure the workability of the trial sample dough
mixture and test the compressive strength at the age of 3 days, 7 days, 14 days
and 28 days. The results of the flow table test on the trial sample mixture have
flow values for 0% variation of 106.98%, 5% variation of 102.98%, 10%
variation of 97.03%, 15% variation of 93.98%, and variation 20% of 96.08%. The
results of the compressive strength of the trial sample at the age of 28 days for 0%
variation of 0.740 MPa, 5% variation of 0.783 MPa, 10% variation of 0.907
MPa, 15% variation of 1.423 MPa, and 20% variation of 0.913 MPa. Lightweight
bricks specimens with actual sizes were made based on the optimum compressive
strength of the trial sample test specimens, with a length of 60 cm, a width of 10
cm and a height of 20 cm as many as 8 samples. The results of the compressive
strength of lightweight bricks at the age of 28 days with a variation of 15%
calcium carbonate were 1.317 MPa. The conclusion of this study that the
percentage variation of 15% calcium carbonate by weight of cement resulted in
the highest compressive strength of the trial sample, with an additional 0.68 MPa
or 92.34% of the compressive strength of the trial sample without calcium
carbonate.
Keywords: Calcium Carbonate, Compressive Strength, Flow Table, Lightweight
Bricks

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 01. 122 (0025)

Penerbit

Pekanbaru : Universitas Riau –Fakultas Teknik – Teknik Sipil., 2022

Deskripsi Fisik

x, 66 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 01. 122 (0025)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK SIPIL

Info Detail Spesifik

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Pernyataan Tanggungjawab

Daus

Versi lain/terkait

Lampiran Berkas

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