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All Journal REKA RACANA EXTRAPOLASI: Jurnal Teknik Sipil axial : jurnal rekayasa dan manajemen konstruksi Portal: Jurnal Teknik Sipil KURVATEK Jurnal Leverage, Engagement, Empowerment of Community (LeECOM) Jurnal Teknik Industri Terintegrasi (JUTIN) DEVICE Extrapolasi Jurnal Teknik Sipil Journal of Scientech Research and Development Journal of Planning and Research in Civil Engineering Senadika

Bantot Sutriono, Bantot

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Author-ID : 547883

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Other

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Pengaruh Silica Fume sebagai Subtitusi Semen terhadap Nilai Resapan dan Kuat Tekan Mortar (Hal. 12-21) Sutriono, Bantot; Trimurtiningrum, Retno; Rizkiardi, Aditya
RekaRacana: Jurnal Teknil Sipil Vol 4, No 4: Desember 2018
Publisher : Institut Teknologi Nasional, Bandung

ABSTRAKBeton dan mortar banyak digunakan sebagai bahan konstruksi di seluruh dunia. Meningkatnya permintaan beton dan mortar juga meningkatkan permintaan semen di pasar yang berdampak negatif bagi lingkungan. Industri semenÂ menghasilkan sekitar 6 hingga 7 persen dari seluruh CO2 di seluruh dunia. Oleh karena itu, para peneliti mencoba mengembangkan gagasan tentangbeton ramah lingkungan, dengan mengurangi penggunaan semen dengan menggunakan bahan alternatif seperti silica fume. Silica fume adalah bahan pozzolan yang kaya akan silika dan dapat bereaksi kimia dengan kalsium hidroksida, membentuk gel kalsium silikat (CSH) pada beton. Tujuan dari penelitian ini adalah untuk menyelidiki pengaruh silica fume sebagai pengganti parsial semen terhadap nilai resapan dan kekuatan tekan mortar. Persentase silica fume bervariasi 0%, 5%, 10%, 12% dan 15%. Hasil pengujian menunjukkan nilai resapan minimum adalah 3,276% diperoleh campuran dengan 15% silica fume dan kuat tekan maksimum 312,574 kg/cm2 diperoleh campuran dengan 8% silica fume.Kata kunci: silica fume, nilai resapan, kuat tekan, mortarÂ ABSTRACTConcrete and mortar are widely used as contruction materials. The increasing demand of concrete and mortar also increase the demand of cement in the market which has negative impact for environment. The cement industry produced for approximately 6 to 7 percent of all CO2 worldwide. Therefore, the researches try to develop the idea of green concrete with reducing the utilize of cement with using the alternative materials such as silica fume. Silica fume is a pozzolanic material that contain rich of silica and has chemical reaction with calcium hydroxide forming calcium silicate hydrate (C-S-H) gel in concrete.The aimed of this research is to investigate the influence of silica fume as partial replacement of cement on absoption and compressive strength of mortar.The percentage of silica fume were varied from 0%, 5%, 10%, 12% and 15%. The test result showed that the minimum absorption value is 3.276% obtain from the mixture with 15% of silica fume and the maximum compressive strength is 312.574 kg/cm2 obtain from the mixture with 8% of silica fume.Keywords: Silica fume, absorption, compressive strength, mortar

Pengaruh Bahan Tambah Gula Pasir Terhadap Waktu Pengikatan dan Kuat Tekan. (Hal. 1-11) Trimurtiningrum, Retno; Sutriono, Bantot; Arrowrichta, Billy; Watu, Hiasintus Bertus; Misrawi, Misrawi
RekaRacana: Jurnal Teknil Sipil Vol 6, No 1: Maret 2020
Publisher : Institut Teknologi Nasional, Bandung

ABSTRAKDalam pelaksanaan pembangunan konstruksi beton, seringkali ditemui beberapa kendala, seperti lokasi batching plan yang berbeda dengan lokasi proyek serta tingginya temperatur saat pengecoran, sehingga dapat mempercepat waktu pengikatan beton. Untuk mencegah waktu pengikatan lebih awal, diperlukan bahan tambah kimia yang dapat memperlambat waktu pengikatan yaitu retarder. Akan tetapi, bahan tambah kimia mempunyai harga yang relatif tinggi. Oleh karena itu, pada penelitian ini digunakan gula sebagai bahan tambah alternatif, karena gula merupakan salah satu penyusun dalam komposisi retarder serta mempunyai harga yang cukup ekonomis. Persentase gula pasir yang digunakan bervariasi, yaitu 0% (sebagai benda uji kontrol); 0,03%; 0,05% dan 0,1%. Hasil pengujian menunjukkan waktu pengikatan terlama diperoleh campuran dengan persentase gula sebanyak 0,1% dengan waktu ikat awal 157 menit dan waktu ikat akhir 258 menit, sedangkan hasil pengujian kuat tekan maksimum sebesar 225,38 kg/cm2 diperoleh campuran dengan persentase gula sebanyak 0,05%.Kata kunci: waktu pengikatan, gula, kuat tekan, retarderABSTRACTIn concrete construction process, several obstacles are often to be encountered such as the location of the batching plan that is different from the project location, as well as the high temperature while casting causes the acceleration of concrete setting time. To prevent earlier setting time, chemical admixture which can slow down the setting time is needed, namely retarders. However, chemical admixtures have relatively high prices. Therefore, in this study, sugar was used as an alternative ingredient, because sugar is one of the retarderâ€™s composition and has relatively economical price. The percentages of sugar were varied, which are 0% (as a control specimen); 0.03%; 0.05% and 0.1%. The test results showed that the longest setting time is obtained by mixture with 0.1% of sugar, with the initial setting time 157 minutes and the final setting time 258 minutes, while the maximum compressive strength test results are 225,38 kg/cm2 obtained by a mixture with 0,05% of sugar.Keywords: setting time, sugar, compressive strength, retarder

Co-Authors Arifin, Moch.Ali Arrowrichta, Billy Budimanto, Eko Budimanto, Eko Budy Wiryawan Dewi Pertiwi Difinubun, M Fahzan Dimas Permana Fadilla, Deska Vira Fambudi, Ivan Oky Febry Fikri, Mohammad Rijal Mathias, Leonardo Mauludiyana, Gita Michella Beatrix Misrawi, Misrawi Nurul Rochmah Permana, Alung Nanda Ramadhan, M. Fathin Ramdani, Moh. Khafidz Amrulloh Retno Trimurtiningrum Ridho’i, Ahmad Rizkiardi, Aditya Saputri, Denis Tiyas Ayu Subianto, Ahmad Yusub Trimurtiningrum, Retno Watu, Hiasintus Bertus Winarko, Edy Wulandari, Shinta Berlinda

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