Harefa, Andrew Jonathan Sochi and Nurhidayatullah, Eka Faisal (2020) PENGARUH PENAMBAHAN KAPUR PADAM 55% DAN 35% TERHADAP KUAT TEKAN BETON GEOPOLYMER MENGGUNAKAN 2 KOMPOSISI ABU AMPAS TEBU 45% DAN 65% THE EFFECT OF ADDITION OF 55% AND 35% OF HYDRATED LIME ON THE COMPRESSIVE STRETH OF GEOPOLYMER CONCRETE USING 2 COMPOSITIONS OF 45% AND 65% BAGASSE CINDERS. Tugas Akhir thesis, University Technology Yogyakarta.
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Abstract
ABSTRAK Inovasi teknologi diperlukan untuk mendukung perkembangan infrastruktur dalam dunia teknik sipil, termasuk inovasi teknologi pada beton. Dalam pengembangan infrastruktur di daerah terpencil akan menghadapi persoalan keterbatasan penggunaan semen sebagai salah satu bahan bangunan yang tergolong langka. Di sisi lain daerah terpencil tersebut memiliki kekayaan alam berupa batu kapur (KP) dan ampas tebu (AT), sedangkan keterbatasan infrastruktur yang ada menyebabkan bahan-bahan bangunan menjadi sulit diperoleh. Penelitian berikut ini akan memaparkan hasil eksperimental penggunaan abu tebu dan kapur padam sebagai bahan bangunan alternatif dalam campuran beton, yang bertujuan untuk mengganti bahan semen. Beberapa penelitian terdahulu menyebutkan bahwa abu yang dihasilkan dari sisa pembakaran mempunyai sifat pozzolan yang tinggi karena mengandung silika seperti halnya semen. Pembuatan mix design dilakukan setelah pengujian semua material dan bahan selesai dilakukan sehingga mendapatkan data yang diperlukan untuk membuatan campuran beton. Acuan mix design yaitu SNI-03-2834-2000. Benda uji yang digunakan adalah 3 beton normal, 3 beton geopolymer (AT45%:KP55%) dan 3 beton geopolymer (AT65%:KP35%) yang direndam selama 28 hari dengan mengacu SNI 2493-2011. Sedangkan pengujian kuat tekan yang dilakukan mengikuti peraturan yang berlaku yaitu SNI 1974:2011. Hasil penelitian menunjukkan bahwa kadar abu ampas tebu dan kapur padam 45%:55% dan 65%:35% memiliki nilai kuat tekan beton rata-rata sebesar 0,923 MPa (45%:55%) dan 0,523 MPa (65%:35%) dibandingkan nilai kuat tekan rata-rata beton normal sebesar 24,976 MPa, dengan demikian bahan-bahan AT dan KP belum direkomendasikan sebagai bahan pengganti semen dalam pembuatan beton geopolymer struktural dan non-struktural. Kata Kunci: Abu Ampas Tebu, Alkali Aktivator, Beton Geopolymer, Kapur Padam, Kuat ABSTRACT Technological innovation is needed to support the development of infrastructure in the world of civil engineering, including technological innovation in concrete. Infrastructure development in remote areas will face the problem of limited use of cement as one of the relatively rare building materials. On the other hand, this remote area has natural resources in the form of hidrated lime and bagasse. The limitations of the existing infrastructure make building materials difficult to obtain. The following research will describe the experimental results of using bagasse cinders and hydrated lime as alternative building materials in concrete mixtures, which aim to replace cement material. Previous studies have suggested that ash produced from combustion remains has high pozzolanic properties because it contains silica as well as cement. Mix design is made after testing all materials is completed so as to get the data needed to make a concrete mixture. Reference mix design is SNI-03-2834-2000. The specimens used were 3 normal concrete, 3 geopolymer concrete (BC 45%: HL55%) and 3 geopolymer concrete (BC 65%: HL35%) which were immersed for 28 days with reference to SNI 2493-2011. While the compressive strength testing is carried out following the applicable regulations namely SNI 1974: 2011. The results showed that the levels of bagasse cinders and hydrated lime 45%: 55% and 65%: 35% had an average compressive strength of 0.923 MPa (45%: 55%) and 0.523 MPa (65%: 35%) compared with an average compressive strength value of normal concrete of 24.976 MPa. Thus, baggase cinders and hydrated lime materials have not been recommended as a substitute for cement in the manufacture of structural and non-structural geopolymer concrete. Keywords: Bagasse Cinders, Alkali Activator, Geopolymer Concrete, Hydrated Lime, Compressive Strength.
| Item Type: | Thesis (Skripsi, Tugas Akhir or Kerja Praktek) (Tugas Akhir) |
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| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Fakultas Sains dan Teknologi > S1 Teknik Sipil |
| Depositing User: | Kaprodi S1 Teknik Sipil UTY |
| Date Deposited: | 14 Oct 2020 08:50 |
| Last Modified: | 14 Oct 2020 08:50 |
| URI: | http://eprints.uty.ac.id/id/eprint/5863 |
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