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All Journal Paulus Civil Engineering Journal

Irwan Lie Keng Wong

Universitas Kristen Indonesia Paulus

Author-ID : 5375030

Civil Engineering, Building, Construction & Architecture Transportation

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Pengaruh Penambahan Abu Batubara Terhadap Hasil Uji Kompaksi (Studi Kasus Tanah Lempung Toraja Utara) Gerwin Kevin Bumbungan; John Patanduk; Irwan Lie Keng Wong
Paulus Civil Engineering Journal Vol 2 No 3 (2020): Volume 2, No.3, September 2020
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Soil is the basis of a building structure. Each area has varied soil characteristics and properties. Often there are some poor and less favorable soil properties for building construction. Examples of soil properties that need to be considered are high plasticity, low shear strength, compressibility, or changes in volume and swelling big shrinkage. It is very important to know the soil problem and make efforts to fix it. This test aims to determine the addition of fly ash to the soil, as well as to determine the value of soil moisture content in soil compaction testing (proctor compaction) after mixing fly ash. From the results of soil compaction testing, the soil stabilized with fly ash at variations of 0%, 10%, 15%, 20%, and 25% indicates an increase in the value of dry density. In the soil compaction test by mixing fly ash, the dry density value of the variation of 0% was 1.307 and increased to 25% of 1.379

Analisis Stabilitas Lereng Disposal Menggunakan Metode Bishop, Janbu, dan Ordinary Daniel Pasole; John Patanduk; Irwan Lie Keng Wong
Paulus Civil Engineering Journal Vol 2 No 3 (2020): Volume 2, No.3, September 2020
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

The stability of disposal or stockpiling slopes in open mines at PT. Vale Indonesia Tbk has become a problem that requires more attention to the continuity of mining activities and is an important matter for conducting technical studies. Factors that often result in collapse or landslide are viewed from the influence of slope geometry such as the inclination angle of the embankment and the composition of the material layer as well as due to the load acting on the crest of the disposal slope. The purpose of this study is to determine whether a slope is stable or not, which is displayed in the form of the value of the safety factor. The stages of the slope stability analysis process were carried out using three methods, namely Bishop, Janbu, and Ordinary which in the analysis process used the Geoslope/W 2012 software. The parameters used were the internal shear angle, cohesion, and soil density. Where the safety factor is obtained from three methods, namely before the change, the results of slope analysis can be seen that the safety factor of the slope using the Geoslope/W 2012 software is in unsafe conditions. While the results of the slope stability analysis by changing the geometry of the slope and the arrangement of the material layers due to the load at the crest/peak of the slope, which changes the slope angle from 35 ° to 25 ° and changing the layer of material composition can increase slope stability, the safety factor obtained by every three methods namely, Janbu, 1,763; Bishop 1608 and Ordinary 1,758.

Pengaruh Penambahan Abu Cangkang Kelapa Sawit Pada Tanah Lempung Paccinongang Kabupaten Gowa Leonard Felix Widyo Sanderan; Irwan Lie Keng Wong; Monika Datu Mirring Palinggi
Paulus Civil Engineering Journal Vol 3 No 2 (2021): Paulus Civil Engineering Journal Volume 3, Nomor 2, Juni, 2021
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Soil has an important role in a highway construction planning that serves to pass the load from the top layer, but not always the basic soil layer is able to function properly. Therefore, in this study was conducted to find out the effect of the addition of oil palm shell ash on clay soil to UCT (Unconfined Compression Test). The type of soil that will be usedfor penelitian is clay soil taken in Paccinongang area, Gowa Regency. The methodology in this study conducted several soil physical properties testing then Kompaksi testing to obtain optimum moisture content value, and Unconfined Compression Test to get strong press value (qu). The results of the study showed that the soil meets the physical properties of clay soil. From The Free Press Strong test on the ash content of the palm shell 0%, 3%, 6%, 9%, 12% and 15% at point 1 the free press strength value decreased from 0% by 0.362% and increased at 9% by 0.424%. Meanwhile, at point 2, it decreased by 0% by 0.445% and increased at 12% by 0.423%. From the Unconfined Compression Test on Paccinongang clay, Gowa Regency with the addition of oil palm shell ash from both samples, there was an increase in the addition of 9% and 12% of normal clay soil.

Effect of Addition of Palm Oil Shell Ash on Clay with Direct Shear Test Christy Agata Makupiola; Rais Rachman; Irwan Lie Keng Wong
Paulus Civil Engineering Journal Vol 3 No 2 (2021): Paulus Civil Engineering Journal Volume 3, Nomor 2, Juni, 2021
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

The purpose of the study was to analyze the results of the physical properties of the clay used and to analyze the effect of adding oil palm shell ash to the clay on the direct shear test. From the results of testing the physical properties of the soil, the soil samples came from Jalan Yusuf Bauty, District. Somba Opu, Gowa Regency is an organic clay soil with moderate plasticity, according to the USCS soil classification system, the soil is classified as fine-grained OH group (organic clay with moderate plasticity and according to the AASTHO system the soil sample includes A-7-5. Direct Shear Test) with the addition of oil palm shell ash from the three samples, it can be seen that oil palm shell ash is able to increase cohesion (c) at each percentage addition of oil palm shell ash, but at the shear angle there is an erratic addition at each percentage addition of shell ash. palm oil, this is because oil palm shell ash only has tensile stress as a binder. From the results of research conducted, the addition of oil palm shell ash has an effect on shear strength, this shows that oil palm shell ash can be used for stabilization,

Effect of Addition of Coconut Shell Charcoal Ash to Clay Soil on Compaction Test Results Brigita Suzanna; Irwan Lie Keng Wong; Monika Datu Mirring Palinggi
Paulus Civil Engineering Journal Vol 3 No 2 (2021): Paulus Civil Engineering Journal Volume 3, Nomor 2, Juni, 2021
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

The purpose of this research is to determine the physical properties of clay soil and to analyze the effect of adding coconut shell charcoal ash to the clay soil. The soil samples used in this study came from Tanralili District, Maros Regency, two sample points were taken and the variations in the levels of addition of coconut shell charcoal ash is 0%, 4%, 6%, 8%, 10%. The test method used refers to ASTM (American Society for Testing Materials). The tests carried out were testing the physical properties of the soil in the form of moisture content, specific gravity, Atterberg boundaries, filter analysis, and hydrometer analysis, then a compaction test was carried out to determine the maximum soil density. The results of the test obtained a moisture content value of 28.811%, a specific gravity of 2.58 g / cm3 so that it is classified as organic clay. As well as the plasticity index value of 9.926% with moderate plasticity from the 7% -17% interval. Then from the test results of soil compaction testing with the addition of coconut shell ash, the dry density (gdry) equal to 0.862, 0.886, 0.914, 0.943, 0.962, this means that the soil sample experienced an increase in dry density (gdry) of 11.60%. From the research results it can be concluded that the addition of coconut shell charcoal ash can increase the value of soil dry density so that it can be used to increase the value of the carrying capacity of clay soil.

Analisis Permeabilitas Menggunakan Metode Falling head pada Tanah dengan Penambahan Abu Serabut Kelapa Sisilia Mira Tangdiombo; Benyamin Tanan; Irwan Lie Keng Wong
Paulus Civil Engineering Journal Vol 3 No 3 (2021): PCEJ, Vol.3, No.3, 2021
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

This study was to determine the physical properties of the soil and the effect of adding coconut ash to the permeability coefficient using the fall method. Soil sampling was carried out in Bolu Village, Rantepao District, North Toraja Regency and the added material used coconut fiber from community waste located on Biring Romang Street, Kapasa Village, Makassar City with the proportion of added material being 0%, 5%, 10%, and 15%. The structure in this research is to use research on the physical properties of the soil and then compile the composition of the alloy to the soil permeability test so that it can produce a coefficient of soil permeability. The results of this study indicate that the soil meets the characteristics as clay soil. The effect of adding fiber ash to the soil is a decrease in the permeability value where the higher the proportion of coconut fibers, the smaller the permeability until the addition of 15%.

Pengaruh Penambahan Pasir Sungai Terhadap Permeabilitas Tanah Lempung Gabriel Rasinan; Benyamin Tanan; Irwan Lie Keng Wong
Paulus Civil Engineering Journal Vol 3 No 4 (2021): Volume 3 No.4 Desember 2021
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

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This study aims to seek the effect of sand on clay soil permeability. Because the problem that often happened in road construction is the characteristics of clay that are unstable to be used as the basis for road construction. It can be damaged such as cracks, holes, and puddles. Therefore, there must be some solution to take to fix the seepage value. The research method used constant head to calculate the water flow through the soil sample in units of time that have been formulated in Darcy’s law. The experiment was tested in the Soil Mechanics Laboratory UKI Paulus Makassar with the soil samples from North Toraja and the sand from the Jenebarang River. The experiment result found that after adding 15% of sand from points 1, 2, and 3 have increased up the permeability value. After all, this study shows that the higher addition of sand, the higher the permeability.

Effect of Addition of Gypsum Powder on Clay by Direct Shear Pengujian Testing Josua Gilang Pang’ Raran; Irwan Lie Keng Wong; Ika Apriyani
Paulus Civil Engineering Journal Vol 4 No 1 (2022): Volume 4 No.1, Maret 2022
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Clay soil is a type of cohesive soil that has low shear strength but high compressibility. The purpose of the study was to determine the physical properties of soil originating from Rantebua Village, Rantebua District, North Toraja Regency, and to determine the effect of adding gypsum to soil originating from Rantebua Village, Rantebua District, north Toraja Regency by direct shear testing. The research method includes testing the phy properties of the soil and mechanical testing on direct shear. The result of the direct shear test that has been obtained shows that each soil sample mixed with gypsum at a composition 12%, 20%, and 28% has an increase in value (c) and value (ϕ). According to the USCS, it is classified as a fine-grained soil type with low to moderate plasticity, then for the result of the direct shear test in the presence of a mixture of gypsum into four soil samples, it can have an increasing effect on the value of (c) and value (ϕ) so that the bearing capacity of the soil becomes better than the soil condition before it was mixed with gypsum.

Analisis Nilai Nilai Kadar Air Optimum Dan Kepadatan Kering Pada Tanah Lempung Dengan Penambahan Abu Cangkang Kemiri Florianus Tobi Wolor; Irwan Lie Keng Wong; Helen Adry Irene Sopacua
Paulus Civil Engineering Journal Vol 4 No 2 (2022): Paulus Civil Engineering Journal Volume 4 No.2
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

The purpose of this study was to determine the effect of adding Candlenut Shell Ash to the maximum dry density and optimum moisture content in clay soil. Pecan shell ash as a clay soil density stabilization agent which was carried out by standard proctor testing. The research method used is Atterberg Limits testing, Moisture Content testing, Specific Gravity testing, Gradation testing (sieve analysis and hydrometer), and Compaction testing. From the characteristic tests it showed that the soil was classified as clay soil and the compaction test at point 1 and point 2 with mixed variations of 0%, 5%, 7%, 9% experienced an increase in the optimum water content. and maximum dry density. In the compaction test, 5 samples were carried out with the optimum moisture content value at point 1 of 0% variation, namely 22.855%, which continued to increase at the highest variation of 9%, namely 25.388 and at point 2, variation of 0%, namely 21.880%, continued to increase at variation of 9%, namely 24.217%, while the value of The maximum dry density at point 1 of 0% variation, which is 0.992, continues to increase at the highest variation of 9%, which is 1.058 and at point 2, variation of 0%, which is 0.957, also continues to increase at the highest variation of 9%, which is 1.047. From the results of the research conducted, it was found that Pecan Shell Ash increased the value of the optimum water content and the maximum dry density value so that it could be used to stabilize the soil.

Pengaruh Penambahan Abu Serabut Kelapa Terhadap Permeabilitas Tanah Lempung Evidelis Kala'lembang; Irwan Lie Keng Wong; Benyamin Tanan
Paulus Civil Engineering Journal Vol 4 No 3 (2022): Paulus Civil Engineering Journal Volume 4 No.3
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

The purpose of this study is to determine the physical properties of the soil and to determine the impact that occurs as a result of the addition of coconut fiber ash to the permeability coefficient of clay soils. The test was carried out by the falling head method. Soil samples were obtained from Rantebua village, Rantebua district, North Toraja regency and coconut fibers used as added material obtained from community waste in Makassar City with a percentage of added materials of 0%,15%,20% and 25%. This study used a series of studies on the physical properties of the soil then to obtain the coefficient of soil permeability, it was arranged to the composition of the alloy against the soil permeability test. Sample testing was carried out at the Soil Mechanics Laboratory of UKI Paulus Makassar. From the results of the research conducted, it has shown that the soil that has been tested meets the characteristics, namely as clay soil. There is a decrease in the permeability value caused by the addition of coconut fiber ash, namely the higher the percentage of coconut fiber ash, the smaller the permeability tilapia up to the addition of 25%.

Co-Authors Benyamin Tanan Brigita Suzanna Christy Agata Makupiola Chriznawati Sari Daniel Pasole Demensi Eltrit Bima Fitrian Eltrit Bima Fitrian Erni Sriwinda Evidelis Kala'lembang Florianus Tobi Wolor Gabriel Rasinan Gerwin Kevin Bumbungan Helen A.I. Sopacua Ika Apriyani Ika Apriyani John Patanduk John Patanduk Josua Gilang Pang’ Raran Leonard Felix Widyo Sanderan Leonard Zeth Karurukan Monika Datu Mirring Palinggi Patrick Setiawan Linga Pebrinar Riani Sangle Rais Rachman Sisilia Mira Tangdiombo Voniyanti Arungtasik Yelrian Gelong Yulis Hendrita Triana

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