Pengaruh suhu pemanasan 60`C pada balok lentur beton geopolimer di lingkungan korosif

Kirom, Muchammad Saiful (2015) Pengaruh suhu pemanasan 60`C pada balok lentur beton geopolimer di lingkungan korosif. Diploma thesis, Institut Technology Sepuluh Nopember.

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Abstract

Indonesia memiliki luas lautan yang lebih besar daripada luas daratan. Untuk itu diperlukan infrastruktur yang menunjang mobilitas antar pulau, salah satunya dengan membangun jembatan dan tol diatas laut. Namun, beton Portland sebagai bahan struktur utama fasilitas tersebut memiliki kelemahan yaitu rentan terhadap serangan korosi air laut. 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 CO2terbesar. Pada penelitian ini beton geopolimer disusun dari campuran abu terbang tipe C dari PT.Paiton, alkali aktifator berupa sodium hidroksida 14M dan sodium silikat, serta agregat kasar dan halus.Benda uji berupa silinder dan balok akan melalui proses pemanasan dan tanpa pemanasan kemudian dirawat pada suhu ruang dan air laut sampai umur 28 hari. Kemudian untuk mengetahui sifat mekanik, maka dilakuakan pengujian kuat tekan, kuat belah, porositas, UPV, dan hammer test. Selain itu, untuk benda uji balok dilakukan pengujian kuat lentur. Hasil penelitian ini menunjukkan bahwa perawatan dengan oven 600C selama 24 jam pada beton geopolimer cenderung menaikkan sifat mekanik dan kuat lentur. ================================================================================================== Indonesia's ocean area is larger than the land area. So, it is necessary to have an infrastructure that supports mobility between the islands, one of them is by build bridges and tolls above the sea. However, Portland concrete as the main structural material has a disadvantage that is vulnerable to sea water corrosion attack. For this condition, it is necessary to develop other structural material that has a higher resistance such as geopolymer concrete. In addition to having high durability, geopolymer concrete is also environmentally friendly. Geopolymer concrete is not using Portland cement that is known as one of the largest producer of CO2. In this study, the geopolymer concrete composed from a mixture of type C fly ash from PT.Paiton, an alkaline activator such as 14M sodium hydroxide and sodium silicate, as well as coarse and fine aggregate.The test specimen in the form of cylinders and beams going through a process of heating and without heating and then treated at room temperature and sea water up to the age of 28 days. Then to determine the mechanical properties, the researcher did a compressive strength testing, strong sides, porosity, UPV, and hammer test. Moreover, to the beam test object, the researcher did a flexural strength testing. The result of this study indicates that a treatment with 600C oven for 24 hours at geopolymer concrete tends to increase the mechanical properties and flexural strength.

Item Type: Thesis (Diploma)
Additional Information: RSS 620.136 Kir p
Uncontrolled Keywords: Abu terbang, Beton, Geopolimer, Oven, Lingkungan Air Laut
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA683 Precast concrete construction. Prestressed concrete construction.
Divisions: Faculty of Civil Engineering and Planning > Civil Engineering > 22401-(D3) Diploma 3
Depositing User: Mr. Tondo Indra Nyata
Date Deposited: 29 Apr 2019 06:13
Last Modified: 29 Apr 2019 06:13
URI: http://repository.its.ac.id/id/eprint/62865

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