Ahmad, Hilfi Harisan (2018) Sifat Mekanis Beton Beragregat Artifisial Ringan. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Beton adalah material yang terdiri dari agregat kasar dan halus dan semen.
Agregat memiliki porsi tertinggi kurang lebih 70 persen volume beton. Agregat
didapat dari alam, namun untuk beberapa daerah ketersediaan agregat sangat
terbatas dan mencegah kerusakan lingkungan akibat eksploitasi sumber daya alam,
maka posisi agregat kasar pada beton dapat digantikan oleh agregat arifisial, yang
terdiri dari fly ash, kapur, silica fume dengan metode cold bonded. Agregat yang
dihasilkan berbentuk pellet dan berukuran 10 sampai 20 mm proporsi yang tepat
untuk bahan campuran 70 persen fly ash, 30 persen kapur dan penambahan sebesar
25 persen silica fume dari berat kapur. Pengujian agregat artifisial meliputi
pengujian impak, keausan, berat volume dan berat jenis. Nilai impak adalah sebesar
18,83 persen dan nilai keausan adalah sebesar 55,97 persen. Pengujian beton
dengan agregat artifisial menghasilkan nilai kekuatan tekan rata-rata pada usia 28
hari sebesar 32 MPa. Beton dengan agregat artifisial memiliki berat jenis lebih
ringan dibandingkan dengan beton normal. Agregat artifisial memiliki berat jenis
sebesar 1,85 gram/cm3 sehingga agregat artifisial memiliki berat jenis 44 persen
lebih ringan bila dibandingkan berat jenis agregat kasar alami.
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Concrete is a material made from coarse and fine aggregates besides cement and
water as the binder. These aggregates form the highest portion of approximately 70
percent of the total volume of concrete. Normally, aggregates are obtained from
natural resources. However, some areas have only very limited supply of
aggregates. To prevent the environmental damage from this aggregate exploitation
from its natural resources, the natural aggregates of the concrete can be replaced by
the artificial ones consisting of fly ash, lime, silica fumes, etc. It can be produced
by several methods and one of them is by the cold-bonded method. The resulting
aggregates made by this method are the pellet-shaped aggregate with the size of 10
to 20 mm. The mixture proportion of this aggregate consists of 70 percent fly ash,
30 percent lime, and additional 25 percent silica fume of the lime weight. The
mechanical properties and characteristics of the artificial aggregate was
investigated which include the impact, abrasion, volume weight, and specific
gravity tests. The impact and abrasion test values were found to be 18.83 and 55.97
percent, respectively. The concrete compressive test using artificial aggregate has
the average value of 32 MPa at the age of 28 days. Concrete with artificial aggregate
has much lower density than normal-weight concrete. The artificial aggregate has
a density of 1.85 gram/cm3 such that it is 44 percent lighter than the natural coarse
aggregate.
| Item Type: | Thesis (Masters) |
|---|---|
| Additional Information: | RTS 620.191 Ahm s |
| Uncontrolled Keywords: | Agregat Artifisial, Agregat Ringan, Beton, Fly Ash, Kapur, Pengganti Agregat Kasar, Silica Fume. |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA683 Precast concrete construction. Prestressed concrete construction. |
| Divisions: | Faculty of Civil, Environmental, and Geo Engineering > Civil Engineering > 22101-(S2) Master Theses |
| Depositing User: | ansi aflacha |
| Date Deposited: | 23 Nov 2018 07:58 |
| Last Modified: | 22 Apr 2024 08:47 |
| URI: | http://repository.its.ac.id/id/eprint/60001 |
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