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Pemanfaatan Limbah Perusahaan Daerah (Cangkang Ale-Ale, Kernel, Serbuk Kayu, dan Lem Plywood) sebagai Pengganti Agregat Kasar Campuran Beton â€˜Ain, Hurul; Polonia, Betti Ses Eka; Ravi, Ahmad
POROS TEKNIK Vol. 12 No. 1 (2020)
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/porosteknik.v12i2.894

Kabupaten Ketapang Provinsi Kalimantan Barat merupakan daerah yang kaya dengan sumber daya alam laut dan perkebunan. Kerang Ale-ale merupakan sumber daya alam laut potensial. Sumber daya alam hasil perkebunan yaitu sawit yang dikelola oleh perusahaan dan menghasilkan limbah berupa cangkang kernel dan sumber daya alam hasil perkebunan yaitu kayu yang dikelola menjadi plywood yang menghasilkan limbah serbuk kayu dan lem sisa mesin produksi. Limbah-limbah tersebut belum dikelola secara maksimal. Hal tersebut menjadi suatu tantangan untuk melakukan penelitian supaya cangkang kerang Ale-ale, cangkang kernel, serbuk kayu plywood, dan lem plywood tersebut dapat digunakan sebagai bahan pengganti agregat kasar dalam campuran beton. Hasil penelitian menunjukkan bahwa pemanfaatan limbah-limbah berpotensi sebagai bahan pengganti agregat kasar dalam campuran beton ringan struktural serta bahan-bahan tersebut berpengaruh terhadap kuat tekan beton. Hasil Uji Kuat Tekan Beton Normal dengan umur 28 hari adalah 172,12 kg/cm2. Untuk bahan cangkang ale-ale diperoleh hasil kuat uji tekan sebesar 136,64 kg/cm2, bahan campuran kernel sebesar 25,02 kg/cm2, bahan serbuk kayu sebesar 40,41 kg/cm2, dan bahan lem plywood sebesar 177,05 kg/cm2. Limbah lem Plywood mempunyai nilai kuat tekan yang lebih tinggi dari beton normal dan mempunyai nilai kuat tekan yang paling tinggi di antara campuran limbah lainnya.

The EFFECT OF RISE HUSK ASH ON CONCRETE MIXING QUALITY FORMULA 'Ain, Hurul; Putranto, Alan; Polonia, Betti Ses Eka; Ravi, Ahmad
Jurnal Teknik Sipil Vol 4 No 1 (2020): Jurnal Gradasi Teknik Sipil - Juni 2020
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/gradasi.v4i1.878

The effect of the addition of rice husk ash (rice husk ash) to the K-175 formula quality concrete mixture, as an aggregate mixture to the concrete compressive strength test using a Compression Testing Machine to get the compressive strength value of concrete and can be used as an alternative material as an additional material in making concrete in improving the quality of building construction. The study uses K-175 concrete quality characteristics as a test material. Test object in the shape of a cube with a size of 15cm x 15cm. With 4 variations in levels of addition of rice husk ash by 0%, 1.5%, 3.5%, and 5% by weight of cement. The husk ash used is the husk ash that escaped the 2.36 mm filter size. From each type of mixture made 9 test specimens, every 3 specimens for the age of concrete 7 days, 14 days and 28 days. Concrete mortar design using ASTM method. With material sources using fine aggregate from the Pawan Ketapang River and coarse aggregate from Merak, Banten. Stages of implementation include examining the nature of aggregate materials, sample making, and testing of concrete compressive strength.

RECYCLE GLASS WASTE AS A REPLACEMENT OF FINE AGGREGATE IN CONCRETE MIX STANDARD COMPARISON Syf. Umi Kalsum; Polonia, Betti Ses Eka; Hurul 'Ain
Jurnal Teknik Sipil Vol 5 No 2 (2021): Jurnal Gradasi Teknik Sipil - Desember 2021
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/gradasi.v5i2.1188

Recycling is one way that is used to minimize the amount of waste that exists. Recycling is also a process to reduce the use of new raw materials, reduce energy use, reduce pollution, land degradation and greenhouse gas emissions. Materials that can be recycled consist of waste of glass, plastic, paper, metal, textiles and electronic goods. Glass has characteristics suitable as concrete aggregates, considering that glass is a material that does not absorb water. In addition, glass has high abrasion resistance. Meanwhile, the waste glass flux lowers the temperature to the temperature at which the formers will melt. Stabilizers in glass waste are made of calcium carbonate, which makes the glass waste solid and water-resistant. This glass waste is recycled by mixing it into the concrete mix. The recycling method is done by pounding the glass and putting it into the concrete mix stage. The purpose of mixing the glass waste is expected to increase the compressive strength of concrete. The use of glass waste as a mixed material affects the compressive strength of the concrete. The concrete with the most inferior to highest compressive strength is 4% variation concrete, 2% variation concrete, and traditional concrete. Optimal percentage addition of glass waste impacts on maximum concrete compressive strength is 2% mixture variation which obtained 11,88 Mpa & 11,32 Mpa.

ANALYSIS OF LATERITE SOIL WITH PORTLAND CEMENT MIXED VARIATIONS AND THE EFFECT ON THE CBR UNSOAKED Ahmad Ravi; Hurul 'Ain; Polonia, Betti Ses Eka; M. Hanif Faisal
Jurnal Teknik Sipil Vol 5 No 2 (2021): Jurnal Gradasi Teknik Sipil - Desember 2021
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/gradasi.v5i2.1205

Ketapang and Kayong Utara Regency have road construction that often suffers damage before the planned life age caused by the behavior of expansive clay. The subgrade is a fundamental structure in building road construction because the subgrade will support traffic loads or construction loads. The strength and durability of the pavement structure road will depend on the properties and bearing capacity of the subgrade. Practically soil stabilization is a reinforcement engineering against foundation or subgrade by using mixed materials. Therefore, different soil improvement variations are needed. Based on the test result, the CBR value of Sukadana initially gets a 2.95% point. The CBR value for the 6% and 10 % mixture, respectively, gets 17.14% and 25.02%. The CBR value of Sungai Melayu Rayak originally get 4.65% point. Then, for the 6% and 10% mixture, the CBR values increased by 13.78% and 18%. The value of the bearing capacity of the highway soil construction can be know from the results of CBR testing on each variation. The CBR also can measure the strength of the soil. The addition of cement to the earth tends to increase the bearing capacity of the ground. It is because cement can function as a binder between soil particles with chemical compounds contained in cement.

Pemanfaatan Limbah Perusahaan Daerah (Cangkang Ale-Ale, Kernel, Serbuk Kayu, dan Lem Plywood) sebagai Pengganti Agregat Kasar Campuran Beton Hurul Ain; Betti Ses Eka Polonia; Ahmad Ravi
POROS TEKNIK Vol. 12 No. 1 (2020)
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/porosteknik.v12i2.894

Kabupaten Ketapang Provinsi Kalimantan Barat merupakan daerah yang kaya dengan sumber daya alam laut dan perkebunan. Kerang Ale-ale merupakan sumber daya alam laut potensial. Sumber daya alam hasil perkebunan yaitu sawit yang dikelola oleh perusahaan dan menghasilkan limbah berupa cangkang kernel dan sumber daya alam hasil perkebunan yaitu kayu yang dikelola menjadi plywood yang menghasilkan limbah serbuk kayu dan lem sisa mesin produksi. Limbah-limbah tersebut belum dikelola secara maksimal. Hal tersebut menjadi suatu tantangan untuk melakukan penelitian supaya cangkang kerang Ale-ale, cangkang kernel, serbuk kayu plywood, dan lem plywood tersebut dapat digunakan sebagai bahan pengganti agregat kasar dalam campuran beton. Hasil penelitian menunjukkan bahwa pemanfaatan limbah-limbah berpotensi sebagai bahan pengganti agregat kasar dalam campuran beton ringan struktural serta bahan-bahan tersebut berpengaruh terhadap kuat tekan beton. Hasil Uji Kuat Tekan Beton Normal dengan umur 28 hari adalah 172,12 kg/cm2. Untuk bahan cangkang ale-ale diperoleh hasil kuat uji tekan sebesar 136,64 kg/cm2, bahan campuran kernel sebesar 25,02 kg/cm2, bahan serbuk kayu sebesar 40,41 kg/cm2, dan bahan lem plywood sebesar 177,05 kg/cm2. Limbah lem Plywood mempunyai nilai kuat tekan yang lebih tinggi dari beton normal dan mempunyai nilai kuat tekan yang paling tinggi di antara campuran limbah lainnya.

The Effect of Rise Husk Ash on Concrete Mixing Quality Formula Hurul 'Ain; Alan Putranto; Betti Ses Eka Polonia; Ahmad Ravi
Jurnal Teknik Sipil Vol 4 No 1 (2020): Jurnal Gradasi Teknik Sipil - Juni 2020
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/gradasi.v4i1.878

The effect of the addition of rice husk ash (rice husk ash) to the K-175 formula quality concrete mixture, as an aggregate mixture to the concrete compressive strength test using a Compression Testing Machine to get the compressive strength value of concrete and can be used as an alternative material as an additional material in making concrete in improving the quality of building construction. The study uses K-175 concrete quality characteristics as a test material. Test object in the shape of a cube with a size of 15cm x 15cm. With 4 variations in levels of addition of rice husk ash by 0%, 1.5%, 3.5%, and 5% by weight of cement. The husk ash used is the husk ash that escaped the 2.36 mm filter size. From each type of mixture made 9 test specimens, every 3 specimens for the age of concrete 7 days, 14 days and 28 days. Concrete mortar design using ASTM method. With material sources using fine aggregate from the Pawan Ketapang River and coarse aggregate from Merak, Banten. Stages of implementation include examining the nature of aggregate materials, sample making, and testing of concrete compressive strength.

RECYCLE GLASS WASTE AS A REPLACEMENT OF FINE AGGREGATE IN CONCRETE MIX STANDARD COMPARISON Syf. Umi Kalsum; Betti Ses Eka Polonia; Hurul 'Ain
Jurnal Teknik Sipil Vol 5 No 2 (2021): Jurnal Gradasi Teknik Sipil - Desember 2021
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/gradasi.v5i2.1188

Recycling is one way that is used to minimize the amount of waste that exists. Recycling is also a process to reduce the use of new raw materials, reduce energy use, reduce pollution, land degradation and greenhouse gas emissions. Materials that can be recycled consist of waste of glass, plastic, paper, metal, textiles and electronic goods. Glass has characteristics suitable as concrete aggregates, considering that glass is a material that does not absorb water. In addition, glass has high abrasion resistance. Meanwhile, the waste glass flux lowers the temperature to the temperature at which the formers will melt. Stabilizers in glass waste are made of calcium carbonate, which makes the glass waste solid and water-resistant. This glass waste is recycled by mixing it into the concrete mix. The recycling method is done by pounding the glass and putting it into the concrete mix stage. The purpose of mixing the glass waste is expected to increase the compressive strength of concrete. The use of glass waste as a mixed material affects the compressive strength of the concrete. The concrete with the most inferior to highest compressive strength is 4% variation concrete, 2% variation concrete, and traditional concrete. Optimal percentage addition of glass waste impacts on maximum concrete compressive strength is 2% mixture variation which obtained 11,88 Mpa & 11,32 Mpa.

ANALYSIS OF LATERITE SOIL WITH PORTLAND CEMENT MIXED VARIATIONS AND THE EFFECT ON THE CBR UNSOAKED Ahmad Ravi; Hurul 'Ain; Betti Ses Eka Polonia; M. Hanif Faisal
Jurnal Teknik Sipil Vol 5 No 2 (2021): Jurnal Gradasi Teknik Sipil - Desember 2021
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/gradasi.v5i2.1205

Ketapang and Kayong Utara Regency have road construction that often suffers damage before the planned life age caused by the behavior of expansive clay. The subgrade is a fundamental structure in building road construction because the subgrade will support traffic loads or construction loads. The strength and durability of the pavement structure road will depend on the properties and bearing capacity of the subgrade. Practically soil stabilization is a reinforcement engineering against foundation or subgrade by using mixed materials. Therefore, different soil improvement variations are needed. Based on the test result, the CBR value of Sukadana initially gets a 2.95% point. The CBR value for the 6% and 10 % mixture, respectively, gets 17.14% and 25.02%. The CBR value of Sungai Melayu Rayak originally get 4.65% point. Then, for the 6% and 10% mixture, the CBR values increased by 13.78% and 18%. The value of the bearing capacity of the highway soil construction can be know from the results of CBR testing on each variation. The CBR also can measure the strength of the soil. The addition of cement to the earth tends to increase the bearing capacity of the ground. It is because cement can function as a binder between soil particles with chemical compounds contained in cement.

Effectiveness of Mobile Learning: moPhyDict to Improve High School Students’ Physics Conceptual Understanding Betti Ses Eka Polonia; Lia Yuliati
Berkala Ilmiah Pendidikan Fisika Vol 7, No 2 (2019): JUNI 2019
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/bipf.v7i2.6345

In learning physics, the problem that arises is a lack of physics conceptual understanding in contextual learning. These problems are due to the absence of innovative and creative learning resources that can be used to learn by the students. One of the learning resources that can be used is a dictionary. moPhyDict (mobile physics dictionary) is a dictionary containing explanations of concepts and illustrations (images, videos, animations) in a language that is easily understood by students. This study specifically aims to test the effectiveness of Mobile Learning: moPhyDict to improve student’s physics conceptual understanding. The method employed in this study was a quasi-experiment design. The experimental design used a pretest-posttest control group design. The sample of the study was 60 students from senior High School, which divided into control group and experiment group. The instrument test in this study used conceptual multiple choice question. Based on the t-test on the control class and the experimental class, it can be inferred that there is a significance score of 0.031. These results are supported by data: (1) the average score of the ability to understand the concept of the control class who did not use moPhyDict increased from 37.4 to 55.46, and (2) the average score of the conceptual understanding of the experimental class who used moPhyDict increased from 40.87 to 74.33. It was concluded that moPhyDict is effective to improve physics conceptual understanding of High School Students.

Effect of Direct Instruction Models Toward Students’ Understanding of Physics Formula Betti Ses Eka Polonia; Ahmad Ravi
Berkala Ilmiah Pendidikan Fisika Vol 8, No 2 (2020): JUNI 2020
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/bipf.v8i2.8329

The research aims to obtain information on the ability to understand the physics formulas of high school students being taught through direct learning models. The population subjects in this study were 360 high school students. The research sample was taken using a random class technique, with a total sample of 79 students. This research used instruments in the form of tests of understanding students' physics formulas in the form of essays that have been tested before being used in research to determine the validity and reliability of the tests. The normality test is performing on the experimental class which obtained Xcount2 < Xtable2 (1,68 < 9,49) and the control class Xcount2 < Xtable2 (1,47 < 9,49), the normality of the two data groups is normal. Homogeneity testing of variance used F-test get value 1,15, which Ftable = 1.74 (Fcount < Ftable), the variance of the two data groups is homogeneous. Data processing uses inferential analysis techniques with the "t" test. There is two class, which one class as an experimental class that was treated in the form of direct teaching-learning models and another class as a control class taught conventionally. The results there is an increase in the score of students' understanding of physics formulas taught through direct learning models. It can happen because students are invited to get accustomed to gaining procedural knowledge also can capture and interpret physics formulas that are taught through modeling or experiment.

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