Pengaruh Penggunaan Serat Sabut Kelapa Terhadap Kuat Tekan Dan Kuat Lentur Beton

Purwanto, Purwanto; Rahmawati, Dwi; Sutarno, Sutarno

doi:10.26623/teknika.v16i2.4224

Cited by 3 publications

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“…Pada riset yang di jalani oleh Risdianto & Tobing (2019), Akumulasi serat serabut kelapa pada beton bisa kurangi kekuatan tekan beton. Kekuatan tekan normal beton usia 7, 14, 21 serta 28 hari ialah 17, 12MPa, 21, 50MPa, 23, 48MPa, 25, 75MPa.…”

Section: Pendahuluan Latar Belakangunclassified

Analisis Penggunaan Serat Ijuk Terhadap Sifat Mekanis Beton Normal

Koesoema,

Kushartono

2023

j. mitra teknik sipil

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Concrete is a mixture of cement, coarse aggregate, fine aggregate, water and or without admixture or additional mixed ingredients. There are various types of concrete, one of which is fibrous concrete. Fibrous concrete is a composite structure consisting of ordinary concrete and other materials in the form of fibers. In this research using a mixture of palm fiber with an average diameter of 0.24 mm. The treatment method is carried out by 5 days of immersion in water followed by steam for less than 5 hours. This research uses a volume variation of 1%, 2%, 3% with lengths of 2 and 3 cm palm fiber, respectively. Based on this research, it is known that the use of a mixture of palm fiber in concrete can increase the value of tensile strength and flexural strength with the addition of the percentage of palm fiber. the use of palm fiber mixed into concrete is produced by a length of 2 cm with a percentage of 1% with a percentage increase of 1.01% in compressive strength, a percentage of 2% with a percentage increase of 76.7% in tensile strength, and a length of 3 cm with a percentage of 3% with a percentage increase of 39.8% in flexural strength. Abstrak Beton merupakan campuran dari semen, agregat kasar, agregat halus, air, dan atau tanpa admixture atau bahan campuran tambahan. Ada bermacam macam jenis beton salah satunya beton berserat. Beton berserat merupakan bagan komposit yang terdiri dari beton biasa dan bahan lain yang berupa serat. Pada riset ini menggunakan campuran serat ijuk dengan diameter rata rata sebesar 0,24 mm. metode perawatan dilakukan dengan 5 hari perendaman dengan air dilanjutkan steam selama kurang 5 jam. Riset ini menggunakan variasi volume 1%, 2%, 3% dengan panjang serat ijuk berturut turut sepanjang 2 dan 3 cm. diketahui berdasarkan riset ini penggunaan campuran serat ijuk pada beton dapat meningkatkan nilai kuat tarik dan kuat lentur seiring penambahan persentase serat ijuk. penggunaan serat ijuk yang di campurkan ke dalam beton dihasilkan oleh Panjang 2 cm dengan persentase 1% dengan persentase peningkatan 1,01% pada kekuatan tekan, persentase 2% dengan persentase peningkatan 76,7% pada kekuatan tarik, dan Panjang 3 cm dengan persentase 3% dengan persentase peningkatan 39,8% pada kekuatan lentur.

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Section: Pendahuluan Latar Belakangunclassified

Analisis Penggunaan Serat Ijuk Terhadap Sifat Mekanis Beton Normal

Koesoema,

Kushartono

2023

j. mitra teknik sipil

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“…Handouts are teaching materials that contain a summary of material which contains a summary of material originating from several relevant sources (Prastowo, 2015). Handouts are written teaching materials in a concise way to guide students through the learning process and can help students achieve more directed learning, because the Handout contains the core material that will be provided by the teacher during the learning process (Purwanto & Rahmawati, 2017).…”

Section: Introductionmentioning

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The Influence of RADEC Learning (Read, Answer, Discuss, Explain, Create) assisted by Media Handouts and Students' Curiosity on the Ability to Understand Mathematical Concepts

2023

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This research was conducted at MTs Nurul Hidayah with the aim of knowing (1) the effect of the Read, Answer, Discuss, Explain, Create (RADEC) learning model assisted by Handout media on understanding mathematical concepts; (2) the influence of students' curiosity on the ability to understand concepts; and (3) the interaction of the handout-assisted RADEC learning model and students' curiosity about their ability to understand mathematical concepts. The research method used was quasy experiment with the non-equivalent group design. The collection of research data was obtained from tests of students' ability to understand concepts and curiosity questionnaires. This research was conducted on class VIII students of MTs Nurul Hidayah with a total of 60 students who were selected through cluster random sampling technique. Based on hypothesis testing through two-way ANOVA, it was obtained (1) there was an influence of the Read, Answer, Discuss, Explain, Create (RADEC) learning model assisted by Handout media on understanding mathematical concepts, (2) there was an influence of students' curiosity on the ability to understand concepts, (3) there is no interaction of the handout-assisted RADEC learning model and students' curiosity about their ability to understand mathematical concepts.

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“…Campuran RPC mengeliminasi penggunaan agregat kasar, material yang digunakan dalam produksi RPC antara lain adalah semen portland, pasir kuarsa, super-plasticizer (SP) dan silica fume. Saat ini RPC mulai dikembangkan berbahan pozzolanic dalam bentuk abu terbang (Kushartomo, Supartono and Kurniawan, 2013), bubuk terak baja, terak tanur sembur granulasi tanah, abu sekam padi (Annisa, Helmi and Irianti, 2019), bubuk kaca, dan batu kapur sebagai campuran serta tanah diatome sebagai sumber silika yang telah dikembangkan di daerah provinsi Aceh (Alkhaly et al, 2021).…”

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Tinjauan Sifat Mekanis Reactive Powder Concrete melalui Perlakuan Uap dengan Abu Sekam Padi sebagai Alternatif Material Pozzolan

Sapriandi,

Amrizal,

Sayahdin

et al. 2024

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Abstrak Reactive Powder Concrete (RPC) merupakan jenis dari beton mutu ultra tinggi dengan karakteristik kuat tekan, dan kuat lentur yang sangat tinggi. Komponen penyusun RPC semen dengan kandungan yang tinggi, bahan yang sangat halus berupa silika dalam jumlah tinggi, dan tanpa agregat kasar. Pada penelitian ini dilakukan tinjauan sifat mekanis berupa uji kuat tekan dan kuat lentur RPC melalui perlakuan uap dengan abu sekam padi sebagai alternatif material pozzolan. Pengujian kuat tekan dilakukan pada kubus berukuran 70,7 x 70,7 x 70,7 mm umur 7 hari dan 28 hari, dan kuat lentur pada balok berukuran 70,7 x 70,7 x 300 mm umur 28 hari. Variasi abu sekam padi digunakan 15%, 20%, 25%, 30% dan 35% dari berat semen dengan jumlah benda uji sebanyak 3 sampel per variasi. Perawatan uap dimulai setelah satu hari pengecoran selama 72 jam pada suhu 90℃ kemudian dilakukan perendaman. Hasil pengujian menunjukan bahwa kuat tekan tertinggi umur 7 hari diperoleh pada variasi abu sekam padi 30% dan merupakan yang paling optimum dengan kuat tekan sebesar 108,37 MPa, selanjutnya pada RPC umur 28 hari kuat tekan tertinggi diperoleh pada variasi ASP 35% sebesar 116,59 MPa. Kemudian kuat lentur RPC tertinggi umur 28 hari diperoleh pada variasi abu sekam padi 30% dan merupakan yang paling optimum dengan kuat lentur sebesar 13,80 MPa. Hal ini menunjukkan bahwa abu sekam padi pada campuran RPC melalui perlakuan uap dapat dijadikan alternatif material pozzolan untuk menghasilkan kuat tekan dan kuat lentur RPC yang tinggi. Kata Kunci: Reactive Powder Concrete, Abu sekam padi, Kuat tekan, Kuat lentur, Perawatan uap Abstract Reactive Powder Concrete (RPC) is a type of ultra high quality concrete with very high compressive strength and flexural strength characteristics. High-content cement, a very fine material with a high silica content, and no coarse aggregate are the components of RPC. In this study, rice husk ash (RHA) was used as an alternative pozzolanic material, and steam treatment was utilized to study the mechanical properties of RPC through compressive strength and flexural strength tests. Examinations of compressive strength were performed using cubes of 70.7 x 70.7 x 70.7 mm at 7 days and 28 days, while tests of flexural strength were performed using beams size 70.7 x 70.7 x 300 mm at 28 days. With a total of three samples for each variation, rice husk ash was employed at rates of 15%, 20%, 25%, 30%, and 35% by weight of cement. After casting for one day at 90°C for 72 hours, steam treatment started before being submerged in water. The results revealed that the 30% variation of rice husk ash had the highest compressive strength at 7 days, with an optimal compressive strength of 108.37 MPa, followed at 28 days by the 35% variation of RHA, with a maximum compressive strength of 116.59 MPa. Furthermore, the highest flexural strength of RPC at 28 days ages was obtained at 30% variation of rice husk ash and was the optimum with a flexural strength of 13.80 MPa. This study indicates that rice husk ash can be utilized as a substitute pozzolanic material in RPC mixes to develop high compressive and flexural strengths. Keywords: Reactive Powder Concrete, Rice husk ash, Compressive strength, Flexural strength, Steam curing.

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Pengaruh Penggunaan Serat Sabut Kelapa Terhadap Kuat Tekan Dan Kuat Lentur Beton

Cited by 3 publications

References 1 publication

Analisis Penggunaan Serat Ijuk Terhadap Sifat Mekanis Beton Normal

Analisis Penggunaan Serat Ijuk Terhadap Sifat Mekanis Beton Normal

The Influence of RADEC Learning (Read, Answer, Discuss, Explain, Create) assisted by Media Handouts and Students' Curiosity on the Ability to Understand Mathematical Concepts

Tinjauan Sifat Mekanis Reactive Powder Concrete melalui Perlakuan Uap dengan Abu Sekam Padi sebagai Alternatif Material Pozzolan

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