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PENGARUH PENAMBAHAN SILICA FUME TERHADAP KUAT TEKAN BETON BUSA MENGGUNAKAN SIKA VISCOCRETE 3115 N Ahmad Iswahyudhi; Febryandi; debby sinta devi
Jurnal Teknik Sipil Vol 8 No 1 (2024): Jurnal Gradasi Teknik Sipil - Juni 2024
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/gradasi.v8i1.2339

Abstract

Beton merupakan material yang sangat penting dan banyak digunakan untuk pembangunan infrastruktur. Beton busa adalah beton ringan yang terbuat dari semen atau mortar dengan campuran foaming agent yang mempunyai bentuk struktur yang berongga dan bergelembung udara, mempunyai berat jenis antara 400 – 1600 kg/m3. Kelebihan utamanya adalah memiliki berat volume yang rendah dan memiliki sifat insulasi yang sangat baik. Penggunaan busa telah banyak digunakan terutama sebagai bahan pengisi beton. Silica Fume dapat digunakan sebagai pengganti sebagian dari semen atau bahan tambahan untuk meningkatkan karakteristik beton seperti kuat tekan. Sika viscocrete 3115 N merupakan salah satu jenis bahan tambah yang bertujuan untuk mempercepat waktu ikat beton. Tujuan dilakukan penelitian ini adalah untuk mengetahui pengaruh variasi penggunaan silica fume terhadap kuat tekan beton busa yang menggunakan sika viscocrete 3115 N. Metode yang digunakan dalam penelitian ini adalah metode eksperimental. Variasi substitusi silica fume yang digunakan adalah 6%, 8% dan 10% terhadap berat semen. Sika viscocrete yang digunakan adalah sebesar 0,5 %, dan foaming agent 30%. Berdasarkan hasil pengujian yang telah dilakukan, optimum substitusi penggunaan silica fume pada beton busa adalah 8% dengan nilai kuat tekan yang lebih tinggi sebesar 2,48 MPa.
EXPERIMENTAL STUDY OF THE UTILIZATION OF PINEAPPLE LEAF FIBER WITH THE ADDITION OF EPOXY RESIN TO THE TENSILE STRENGTH BREAK OF THE CONCRETE Nisumanti, Sartika; Hasanah, Miftahul; Febryandi
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 24 No. 2 (2024): July
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v24i2.63-68

Abstract

In its development, many new concrete modifications were found, such as lightweight concrete, fiber concrete, polymer concrete, high-strength concrete and ultra-high-strength concrete. Epoxy resin can accelerate the hardening process of concrete because epoxy itself generates heat so that it helps accelerate hardening. In previous studies, the addition of areca nut shell fiber and 0.8% epoxy resin can increase the split tensile strength of concrete. Based on the description above, it is necessary to conduct research on the split tensile strength of concrete that combines a mixture of pineapple leaf fiber and epoxy resin. So this research uses pineapple leaf fiber and epoxy resin. Pineapple leaf fiber and epoxy resin are expected to be strength-enhancing materials that can produce concrete with more optimal split tensile strength.  The purpose of this study was to determine the effect of the addition of epoxy resin and the percentage variation of pineapple leaf fiber on the split tensile strength of concrete and its comparison with normal concrete and to determine the percentage level of the addition of the most optimum pineapple leaf fiber to produce the maximum concrete split tensile strength test value among the planned variations. The method used in this research is experimental. From the results of the average split tensile strength test at 28 days, the epoxy resin variation of 0.8% achieved a strength of 2.87 MPa, the 0.15% variation achieved 2.37 MPa, and the 0.5% variation achieved 2.47 MPa
PENGARUH PENGGUNAAN SERBUK KAYU JATI DAN SIKA VISCOCRETE TERHADAP KUAT TEKAN BETON febryandi; Sinta Devi, Debby; Marlina, Leni
Jurnal Tekno Global Vol. 13 No. 02
Publisher : UNIVERSITAS INDO GLOBAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36982/jtg.v13i02.4842

Abstract

ABSTRACT Due to the growing infrastructure, the use of concrete construction is increasing. Concrete is a construction material made from a mixture of coarse aggregate, fine aggregate, cement, water, and other additives. Teak wood powder is a sawn residue from wood waste that is utilized as a fine aggregate substitute. Teak wood powder contains cellulose, hemilose, and lignin, and has the ability to bind materials well and inhibit water diffusion so as to increase the compressive strength of concrete. In addition, the addition of Sika viscocrete is also carried out to increase the compressive strength of concrete. This research analyzes the use of teak wood powder as fine aggregate with variations of 5%, 10% and 15% and sika viscocrete 0.8% by weight of cement. The test results obtained at the compressive strength of 28 days of age with the use of 5% teak wood powder is 28.03 MPa, while for 10% variation of 28 days of age obtained compressive strength of 22.04 MPa, for 15% variation of 28 days of concrete compressive strength of 20.76 MPa. The use of teak wood powder at 5% can increase the compressive strength of concrete by 6.3% compared to normal concrete added with Sika viscocrete. In addition, when compared to normal concrete without sika viscocrete, the increase occurred by 9.09%. Therefore teak wood powder can be used as an effective additive to increase the compressive strength of concrete, as well as making a positive contribution to sustainability in the construction industry. Keywords: Teak wood powder, sika viscocrete, concrete compressive strength   ABSTRAK Konstruksi beton semakin populer seiring dengan kemajuan infrastruktur. Beton adalah bahan konstruksi yang terbuat dari campuran agregat kasar, agregat halus, semen, air, dan bahan tambahan lainnya. Serbuk kayu jati merupakan sisa pengergajian dari limbah kayu yang dimanfaatkan sebagai substitusi agregat halus. Serbuk kayu jati mengandung selulosa, hemilosa, dan lignin, dan memiliki kemampuan untuk mengikat material dengan baik serta menghambat difusi air sehingga dapat meningkatkan kekuatan tekan beton. Selain itu penambahan sika viscocrete juga dilakukan untuk menambah kuat tekan beton. Pada penelitian ini bertujuan untuk mengetahui bagaimana pengaruh penggunaan serbuk kayu jati sebagai agregat halus dengan variasi 5%,10% dan 15% dan sika viscocrete 0,8% terhadap berat semen. Hasil uji yang didapatkan pada kuat tekan umur 28 hari dengan penggunaan 5% serbuk kayu jati adalah sebesar 28,03 MPa, sedangkan untuk variasi 10% umur 28 hari didapatkan kuat tekan sebesar 22,04 MPa, untuk variasi 15% umur 28 hari kuat tekan beton 20,76 MPa. Penggunaan serbuk kayu jati sebesar 5% dapat meningkatkan kuat tekan beton sebesar 6,3% dibandingkan dengan beton normal ditambah dengan sika viscocrete. Selain itu jika dibandingkan dengan beton normal tanpa sika viscocrete peningkatan terjadi sebesar 9,09%. Oleh karena itu serbuk kayu jati dapat digunakan sebagai bahan tambahan yang efektif untuk meningkatkan kuat tekan beton, serta memberikan kontribusi positif terhadap keberlanjutan dalam industri konstruksi. Kata Kunci: Serbuk kayu jati, sika viscocrete, kuat tekan beton
EXPERIMENTAL STUDY OF THE UTILIZATION OF PINEAPPLE LEAF FIBER WITH THE ADDITION OF EPOXY RESIN TO THE TENSILE STRENGTH BREAK OF THE CONCRETE Nisumanti, Sartika; Hasanah, Miftahul; Febryandi
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 24 No. 2 (2024): July
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v24i2.63-68

Abstract

In its development, many new concrete modifications were found, such as lightweight concrete, fiber concrete, polymer concrete, high-strength concrete and ultra-high-strength concrete. Epoxy resin can accelerate the hardening process of concrete because epoxy itself generates heat so that it helps accelerate hardening. In previous studies, the addition of areca nut shell fiber and 0.8% epoxy resin can increase the split tensile strength of concrete. Based on the description above, it is necessary to conduct research on the split tensile strength of concrete that combines a mixture of pineapple leaf fiber and epoxy resin. So this research uses pineapple leaf fiber and epoxy resin. Pineapple leaf fiber and epoxy resin are expected to be strength-enhancing materials that can produce concrete with more optimal split tensile strength.  The purpose of this study was to determine the effect of the addition of epoxy resin and the percentage variation of pineapple leaf fiber on the split tensile strength of concrete and its comparison with normal concrete and to determine the percentage level of the addition of the most optimum pineapple leaf fiber to produce the maximum concrete split tensile strength test value among the planned variations. The method used in this research is experimental. From the results of the average split tensile strength test at 28 days, the epoxy resin variation of 0.8% achieved a strength of 2.87 MPa, the 0.15% variation achieved 2.37 MPa, and the 0.5% variation achieved 2.47 MPa