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Pengaruh Penambahan Limbah Sisa Penyaringan Minyak Kelapa Sawit Sebagai Bahan Tambah Terhadap Kuat Tekan Dan Kuat Lentur Beton Muhammad Gala Garcya; Zulfikar Djauhari; Alex Kurniawandy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The research aims to obtain the characteristic of concrete using Spent Bleaching Earth (SBE) as substitute material on normal concrete. It is focused on compressive strength, setting time, and flexure strength. The percentage of SBE it used are 0%, 2%, and 4% of the cement weight. The result show SBE is not suitable to be a cement replacement because it show the decrease of compressive and flexure strength. But the setting time on SBE is slower than 0% SBE substitution and need more time to harden than normal concrete.Keywords : Spent Bleaching Earth, setting time, compressive strength, flexure strength

Aplikasi Jaringan Saraf Tiruan dengan Metode Fungsi Tan-Sigmoid dalam Memprediksi Kinerja Struktur Bangunan Gedung Muhammad Gala Garcya; Zulfikar Djauhari; Reni Suryanita
Sainstek (e-Journal) Vol. 9 No. 1 (2021)
Publisher : Sekolah Tinggi Teknologi Pekanbaru

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Gempa bumi merupakan salah satu ancaman terbesar terhadap gedung, sehingga perlu untuk mendesain gedung dengan memperhitungkan pembebanan gempa bumi yang terjadi. Dengan bantuan software finite element dapat diperoleh respons struktur berupa displacement, velocity, dan acceleration yang terjadi akibat gempa bumi. Jaringan Saraf Tiruan (JST) merupakan salah satu metode yang dapat memprediksi kerusakan bangunan dengan memanfaatkan data respons struktur dengan waktu analisis yang relatif lebih singkat dibandingkan menganalisis struktur satu per satu. Penelitian ini bertujuan untuk menganalisis data gempa dengan magnitude intensitas tinggi yang berbeda-beda. Data input dan output diperoleh melalui software Finite Element untuk menghasilkan jumlah data yang diperlukan JST yaitu sebanyak 4489 data. Pada penelitian ini, komposisi yang digunakan untuk training, testing, dan validating adalah 60%, 25%, dan 15% masing – masingnya. Data input yang digunakan yaitu waktu, acceleration arah x dan y, velocity arah x dan y, serta displacement arah x dan y. Sedangkan untuk data target yang digunakan yaitu kinerja struktur yang ditentukan oleh FEMA 356 dan simpangan antar lantai arah x dan y. Hasil pengujian menunjukkan analisis oleh JST yang menggunakan transfer function Tan-Sigmoid menunjukkan nilai R2 sebesar 97,542% dan Mean Square Error (MSE) yang dihasilkan yaitu sebesar 1,2449.E-07. Hal ini menunjukkan analisis JST dengan transfer function Tan-Sigmoid dapat digunakan untuk memprediksi kinerja dari struktur dengan cepat dan akurat. Dengan demikian metode ini diharapkan dapat direkomendasikan untuk Structural Engineer dan perencana gedung dalam mendesain bangunan gedung bertingkat tahan gempa.

PREDIKSI KERUSAKAN KINERJA STRUKTUR BANGUNAN GEDUNG MENGGUNAKAN JARINGAN SARAF TIRUAN DENGAN METODE PURELIN Muhammad Gala Garcya; Faisal Ananda; Armada Sukri
Jurnal TeKLA Vol 4, No 2 (2022): TeKLA Vol. 4 No. 2
Publisher : Politeknik Negeri Bengkalis

An earthquake is one of the natural events whose magnitude cannot be predicted. This is can happen because the direction of the earthquake work depends on the movement of the soil that supports it. This is generally the biggest threat to construction, especially buildings. Buildings are expected to be built because they can use even a small area of land. However, over time, it is common for buildings to collapse due to earthquakes, so a more detailed analysis is needed to design a better earthquake-resistant building. Time history analysis is one of the analyzes used to evaluate buildings against earthquakes. However, time history analysis has a weakness, namely the duration of the analysis tends to be long, so determining whether a structure is still able to function according to plan is difficult to measure. Analysis of artificial neural networks by utilizing structural response data is expected to be able to predict the structural performance of building structures. The purelin method reads data linearly but in this case, predicts based on previous data or is known as the Backpropagation Analysis method.

EFEKTIFITAS SUPERPLASTICIZER PADA BETON BERBASIS LIMBAH SAWIT TERHADAP SIFAT MEKANIS DAN SIFAT FISIK BETON Muhammad Gala Garcya; Juli Ardita Pribadi; Boby Rahman
ABEC Indonesia Vol. 11 (2023): 11th Applied Business and Engineering Conference
Publisher : Politeknik Negeri Bengkalis

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Spent Bleaching Earth (SBE) is one of the problems that triggers soil damage due to its fairly common use but minimal utilization of this waste. SBE is waste resulting from Crude Palm Oil (CPO) filtering. CPO during initial processing has a color that tends to be dark, so it requires bleaching powder (Fresh Spent Bleaching Earth) to filter the oil. The remainder of this filtering is known as SBE. If this waste is allowed to accumulate for too long, it has the potential to cause damage to the soil and the surrounding environment, even land fires due to the oil content in it. Therefore, in the form of utilizing and reducing environmentally damaging waste, innovation is needed, such as using this waste into the concrete mix. The process of making this concrete will be the same as concrete in general but using a different mix so that this waste can be optimally utilized. Based on the test results obtained, SBE has the potential to be one of the recommendations for concrete mixtures that are applied to seawater because the compressive strength increases as the concrete ages by 36.2% at 28 days. Whereas in fresh water the compressive strength value tends to decrease by 15.9%. So based on testing, SBE is more suitable for use in seawater environments than freshwater. Keywords: Waste Concrete, Compressive Strength, Palm Processed Oil, Spent Bleaching Earth

STUDI KOMPARASI EKSPERIMENTAL BALOK BETON BERTULANG DENGAN MENGGUNAKAN ABAQUS CAE SEBAGAI PERBANDINGAN NILAI BEBAN DAN LENDUTAN Bernando, Nofri; Jauhari, Zev Al; Garcya, Muhammad Gala
Jurnal TeKLA Vol 6, No 1 (2024): Vol.6 No.1 Juli 2024
Publisher : Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/tekla.v6i1.3471

Effective field testing of concrete structures requires a great deal of rigor and understanding the response and behavior to concrete loads. The bending of the beam tends to be smaller, so reinforcing steel is used to increase the displacement of the beam. However, errors often occur in the implementation so that there is often a decrease in the quality of the concrete. The arrangement of the reinforcement is not in accordance with the requirements for the load received, so it is necessary to create a model according to the load to be applied without conducting multiple trials (trial errors). The abaqus CAE software is a modeling application that belongs to the Finite Element. Modeling reinforced concrete beams in the abaqus application for this study is expected to get results close to experimental tests in the field. namely the comparison between experimental test results of reinforced concrete beams with the results of analysis in the abaqus CAE software. The results of flexure testing of reinforced concrete beams in the field obtained a maximum load value of 106.22 KN with a deflection of 1.126 mm. While the modeling of reinforced concrete beams in the abaqus application obtained a maximum load value of 146.203 KN with a deflection of 4.83 mm.

STUDI PERBANDINGAN NILAI BEBAN DAN LENDUTAN EKSPERIMENTAL BALOK BETON BERTULANG DENGAN TAMBAHAN SIKACIM COCRETE ADDITIVE MENGGUNAKAN ABAQUS CAE Andi, Septian Rizki; Al Jauhari, zev; Garcya, Muhammad Gala
Jurnal TeKLA Vol 6, No 1 (2024): Vol.6 No.1 Juli 2024
Publisher : Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/tekla.v6i1.3497

Effective testing of concrete structures in the field requires a lot of precision and understanding the response and behavior of loads, namely the comparison between experimental test results of reinforced concrete beams and the results of analysis in the CAE abaqus software. The abaqus CAE software is a modeling application that belongs to the Finite Element. Concrete with high quality is quite difficult to work. Therefore, the chemical Sikacim Concrete Additive is added to make work easier and maintain the quality of the concrete. This research will be a recommendation on the reinforcement placement arrangement that can increase the load value of the test object. Modeling reinforced concrete beams in the abaqus application for this study is expected to get results close to experimental tests in the field. The result with the addition of Sikacim Concrete Additive of 1% by weight of cement to the compressive strength of concrete has increased from normal concrete, namely from 25.81 MPa to 28.98 MPa. The results of flexure testing of reinforced concrete beams in the field obtained a maximum load value of 123.18 KN with a deflection of 1,07 cm. While the modeling of reinforced concrete beams in the abaqus application obtained a maximum load value of 155,738 KN with a deflection of 0.565Â cm. the deflection of these 2 variations is a better recommendation compared to field testing and abaqus modeling without variations. The deflection in variation 1 is 0.485 cm with a load of 155.73 KN and variation 2 is 0.413 cm with a load of 178.477 KN.

Effectiveness of Using Spent Bleaching Earth Stabilized Using Seashells on Concrete Compressive Strength Garcya, Muhammad Gala; R, Juli Ardita Pribadi; Rahman, Boby; Maulana, Ryan
ABEC Indonesia Vol. 12 (2024): 12th Applied Business and Engineering Conference
Publisher : Politeknik Negeri Bengkalis

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Bleaching Earth is a material used to refine palm oil to make it brighter in color as we currently consume.However, due to this, the accumulation of Bleaching Earth is increasingly uncontrolled and continues to accumulate.Previously, this research had been carried out but had not found a major impact on concrete durability. Especially incoastal areas which are often exposed to high chloride ions and have the potential to damage concrete. This research aimsto create a material that can modify the properties of concrete to have better durability by modifying Spent BleachingEarth using seashells. This research uses a cylinder measuring 150 x 300 mm with a various admixture. In this research, 3(three) stabilization fraction models were tried, namely Fraction A with 60% SBE and 40% Seashells, fraction B with50% SBE and 50% Seashells, and fraction C with 40% SBE and 60% Seashells. The research showed that fraction Bshowed compressive strength reaching 22,85 MPa and Fraction C showed compressive strength up to 29,44 MPa at 28days. Meanwhile, Fraction A experienced a decrease in compressive strength, reaching only 20,64 MPa compared tonormal concrete of 21,90 MPa at 28 days. This could be caused by many things, so further research is needed regardingthe stabilization of these two materials. Based on the research, it can be concluded that Fraction C can be arecommendation because it has higher strength than other fractions and needs to be tested in aggressive environments,especially in coastal areas

Pengaruh Penambahan Limbah Sisa Penyaringan Minyak Kelapa Sawit Sebagai Bahan Tambah Terhadap Kuat Tekan Dan Kuat Lentur Beton Garcya, Muhammad Gala; Djauhari, Zulfikar; Kurniawandy, Alex
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

The research aims to obtain the characteristic of concrete using Spent Bleaching Earth (SBE) as substitute material on normal concrete. It is focused on compressive strength, setting time, and flexure strength. The percentage of SBE it used are 0%, 2%, and 4% of the cement weight. The result show SBE is not suitable to be a cement replacement because it show the decrease of compressive and flexure strength. But the setting time on SBE is slower than 0% SBE substitution and need more time to harden than normal concrete.Keywords : Spent Bleaching Earth, setting time, compressive strength, flexure strength

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