PENGARUH SUHU TINGGI TERHADAP PASTA GEOPOLIMER

RACHMAN, FATHIRUL and KURNIAWAN, TAUFAN (2016) PENGARUH SUHU TINGGI TERHADAP PASTA GEOPOLIMER. Diploma thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Indonesia merupakan salah satu negara yang memiliki kepadatan penduduk tertinggi di dunia. berkembangnya infrastruktur tersebut, muncul pula berbagai masalah seperti kurang diimbanginya perkembangan infrastruktur dan pertumbuhan di bidang peraturan keselamatan kebakaran. Ketimpangan laju pertumbuhan tersebut, pada akhirnya memicu tingginya angka kebakaran bangunan. Kebakaran yang terjadi pada bangunan seringkali menyebabkan kerusakan pada elemenelemen strukturnya. Kualitas dan kekuatan beton portland akan mengalami penurunan seiring dengan kenaikan suhu dan lama terjadinya kebakaran tersebut. Untuk itu perlu dikembangkan bahan struktur lain yang memiliki ketahanan lebih tinggi seperti beton geopolimer. Selain memiliki ketahanan yang tinggi, beton geopolimer juga ramah lingkungan. Beton geopolimer tidak menggunakan semen Portland yang dikenal sebagai salah satu pengahasil gas CO2 terbesar. Pada penelitian ini benda yang diuji adalah pasta geopolimer disusun dari campuran abu terbang tipe C dari PT.Petrokimia Gresik, alkali aktifator berupa sodium hidroksida 6, 10 dan14 Molar .Benda uji berupa silinder 2,5 cm x 5 cm dan kubus 5 cm x 5 cm akan melalui proses perawatan pada suhu ruang sampai umur 28 hari dan di uji bakar pada suhu 200oC,600oC dan 1000oC selama 4 jam. Kemudian untuk mengetahui kuat tekan dan ketahanan, maka dilakuakan pengujian kuat tekan, porositas, UPV, dan hammer test. Hasil penelitian ini menunjukkan bahwa Kuat tekan pasta geopolimer ( 6,10 dan 14 molar) pada suhu 2000 C lebih kuat dibanding perawatan suhu ruang. Kembali turun kuat tekannya pada suhu 6000 C dan benda uji rusak pada suhu 10000 C. ===== Indonesia is a developing country which has the highest population density in the world, lack of Infrastructure development gives sorts of problems, such as low adaptable infrastructure development and less innovation of fire safety regulations. Both of two reasons that have been mentioned can impact high rates of fire accident. As we know that fire accident will make some elements the of building structure become weaker. Quality and strength of Portland concrete can be decreased not only by the increasing temperature but also about duration of fire accident. It is necessary to improve other structural material that has a higher resistance such an example is geopolymer concrete. Moreover, geopolymer concrete is high resistance of high temperature and also environmentally friendly. Geopolymer concrete doesn’t contain Portland cement which is one of the highest CO2 gas producer. On this research, specimen that we used is geopolymer pasta that composed of fly-ash type C from PT. Petrokimia Gresik, the alkali activator is sodium hydroxide 6,10,14 Molar. Forms of the specimen are, cylinder 2,5 cm x 5 cm and in a form of cube which dimension is 5 cm x 5 cm. Both will have treatment process in room temperature up to 28 days. Specimens will be tested in a burning process on 200°C,600°C,1000°C temperatures for 4 hours. Then, some methods to measure the compressive strength and resistance are compressive strength test, porosity, UPV and also hammer test. The result of this research shows that, compressive test of geopolymer pasta (6,10,14 Molar) on 200°C is stronger than in a room temperature treatment. The compressive strength was decreased on 600°C and wrecked on 1000°C.

Item Type: Thesis (Diploma)
Uncontrolled Keywords: Abu terbang, Pasta, Geopolimer, Suhu tinggi, Fly ash, Geopolymer Paste, High Temperature
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA440 Concrete--Cracking
Divisions: Faculty of Civil Engineering and Planning > Civil Engineering > (D3) Diploma
Depositing User: - Davi Wah
Date Deposited: 03 Jan 2017 03:33
Last Modified: 27 Dec 2018 06:08
URI: http://repository.its.ac.id/id/eprint/1256

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