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Irwan Lie Keng Wong
Universitas Kristen Indonesia Paulus
Civil Engineering, Building, Construction & Architecture Transportation

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Pengaruh Penambahan Ampas Kopi pada Tanah Lempung Terhadap Daya Dukung Tanah Leonard Zeth Karurukan; Irwan Lie Keng Wong; Pebrinar Sangle
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (547.602 KB) | DOI: 10.52722/pcej.v4i3.501

Abstract

Clay soils contain a soil with a certain particle mineral content where there are sand or silt particles, there is also organic matter that is the material for sussunnyz. This type of soil is poor in terms of soil carrying capacity where the condition of the soil does not allow for road construction to be built on it. It is necessary to make efforts to improve the condition of the soil in order to increase its carrying capacity and soil stabilization is one of the options in increasing the carrying capacity of the soil. Soil samples were taken from Lambanan village, Mamasa District, Mamasa Regency and then the original soil contch was mixed with coffee grounds at variations of 5%, 10%, and 15%. The experiments carried out in the laboratory are soil moisture content, Atterberg boundary, soil specific gravity, soil encroachment and CBR. The CBR test showed an increase in the percentage value of CBR. The change in soil carrying capacity occurred in the addition of 10% of coffee grounds, from 1.73% before the addition rose to 3.8% there was an increase in CBR of 1.33%. On the addition of the pulp of the header: 15% CBR value. to 4.415% there was an increase in CBR of 1.708%. In this study, it was seen that the addition of coffee grounds to clay soils can increase the value of the CBR number and soil power
Pengaruh Penambahan Abu Limbah Kulit Kakao Terhadap Koefisien Permeabilitas Tanah dan Piping Voniyanti Arungtasik; 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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (435.311 KB) | DOI: 10.52722/pcej.v4i3.505

Abstract

This study was carried out to determine the effect of cocoa shell waste ash on soil permeability and piping. This is because clay soil has a poor carrying capacity where the condition of the soil does not allow for road construction to be built on it. Therefore, it is necessary to make efforts to improve the condition of the soil, one of the most common ways is to stabilize the soil. Soil sampling was carried out in Lambanan Village, Mamasa District, Mamasa Regency, and added materials using cocoa shell waste ash located in Lambara Harapan, Burau District, East Luwu Regency with the percentage of added material at the soil permeability coefficient, namely 0%, 5%, 10%, 15% and in piping used percentages of 0% and 15%. The achievement structure in this study is to use a series of studies on the physical properties of the soil so that it can produce soil permeability coefficients and piping. Testing of soil physical properties was carried out at the Uki Paulus Soil Mechanics Laboratory in Makassar. The results of this study showed that the soil meets the characteristics as loamy soil. The effect of adding cocoa shell waste ash to the soil is that there is a decrease in permeability where the higher the percentage of cocoa shell waste ash, the smaller the permeability value to the addition of 15%, while in piping there is an increase in the addition of 15%.
Pengaruh Penambahan Limbah Ampas Kopi Terhadap Koefisien Permeabilitas Tanah dan Piping Yulis Hendrita Triana; 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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (546.299 KB) | DOI: 10.52722/pcej.v4i3.506

Abstract

Clay soil is soil that has certain mineral particles in which there are particles of silt and sand and there may also be a mixture of organic matter. This type of soil has a poor soil carrying capacity where the condition of the soil does not allow for a highway construction to be built on it. Efforts need to be made to improve the condition of the soil and one of the most commonly used ways is to stabilize the soil and the soil is taken in Lambanan Village, Mamasa District, Mamasa Regency, West Sulawesi then soil samples are mixed with coffee grounds with variations of 0%, 5%, 10%, 15%. The tests carried out are soil moisture content, soil specific gravity, atterberg boundaries, permeability and piping tests. In permeability testing, there is a decrease in the percentage value of permeability and in piping testing there is an increase in the percentage value of piping. In this study, it was seen that the addition of waste pulp.
Analisis Hasil Pengujian California Bearing Ratio Penambahan Slag Nikel Pada Tanah Lempung Patrick Setiawan Linga; Irwan Lie Keng Wong; Eltrit Bima Fitrian
Paulus Civil Engineering Journal Vol 4 No 4 (2022): Paulus Civil Engineering Journal Volume 4 No. 4
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/pcej.v4i4.539

Abstract

Soil improvement on clay soils needs to be done because clay soils have a large water content, large pore numbers, large index plasticity, small volume weight, causing the carrying capacity of clay soils to be low. This study is intended to determine the analysis of the test results of the California Bearing Ratio of nickel slag additions on clay soils. The methodology in this research is to carry out various tests of soil characteristics after which planning the composition of the mixture, obtaining the optimum moisture content value from the Compaction test obtaining the soil carrying capacity value from the California Bearing Ratio (Unsoaked Design CBR) test. In the research conducted at the Soil Mechanics Laboratory, Faculty of Engineering, Department of Civil Engineering, Christian University of Indonesia Paulus Makassar, the results obtained showed the characteristics of the soil tested to meet as clay. In the compaction test at point 1 and point 2 using a mixture of variations of 0%, 20%, 25%, 30%, 35% experienced an increase in optimum moisture content and maximum dry density. At point 1, the increase in dry density in testing nickel slag content from 0% as much as 1,098 continued to increase in the addition of nickel slag up to 30% as much as 1,123 continued to increase in the addition of nickel slag levels up to 35% as much as 1,214. In the CBR test, namely CBR without immersion, there was an increase in the CBR value at point 1 or at point 2 where the CBR value at point 1 was 1.97%, 2.63%, 3.80%, 5.70%, 6.33% while the CBR value at point 2 was 2.24%, 2.60%, 3.23%, 3.97%, 5.17%. From the results of the study, it can be concluded that nickel slag can be used to increase the carrying capacity of clay soils because nickel slag can increase the CBR value of the soil.
Pengaruh Penambahan Semen dan Abu Sekam Padi Terhadap Kepadatan Tanah dan Daya Dukung Tanah Lempung Yelrian Gelong; Irwan Lie Keng Wong; Ika Apriyani
Paulus Civil Engineering Journal Vol 5 No 2 (2023): Paulus Civil Engineering Journal, Volume 5, No.2
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/pcej.v5i2.631

Abstract

The basic principle of earthworks for roads is to be able to provide the space needed for traffic movement safely and smoothly, the subgrade as the foundation for the foundation of the road body must be able to support the traffic load that is channeled through the pavement without significant deformation. The purpose of this study was to determine the physical properties of the soil from the Muunloe sub-district, to determine the effect of the addition of cement and rice husk ash on the density of clay soil and to review the effect of the addition of cement and rice husk ash on the carrying capacity of clay soil by testing the DCP. Based on the AASHTO classification, soils originating from Moncongloe District, Maros Regency are clay soils with moderate plasticity and included in the classification group A-7-5 (17). The carrying capacity of the clay soils used in this study reached 11.17%, while for soils varied with 5% cement by 16.46%, for variations of 5% cement and 5% rice husk ash obtained CBR values of 14.79%, for variations of 5% cement and 10% rice husk ash by 11.17% and 12.91% for soil varied by 5% cement and 15% rice husk ash, the highest CBR value increase was in the 5% cement variation, which was 5.24% of the original soil.
Korelasi Kuat Tekan Bebas (UCT) Dengan Kuat Geser Langsung (Direct Shear Test) Pada Tanah Lempung Chriznawati Sari; Irwan Lie Keng Wong; Helen Adri Irene Sopacua
Paulus Civil Engineering Journal Vol 5 No 2 (2023): Paulus Civil Engineering Journal, Volume 5, No.2
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/pcej.v5i2.646

Abstract

This study aims to determine the correlation of compressive streght and shear strength in clay varied with bottom ash mixture. The soil tested in this study came from Jl.Poros Malino-Makassar, RW 63 Paringgi, Kec. Tinggi moncong , Kab. Gowa, South Sulawesi. In the contruction of structuction on clay soil will cause several problems, such as the small value of the compressive strength and shear strength of the soil. In order to know the results. To see the behavior of this structure, bottom ash is mixed with bottom ash mixture variations.To find out the effect of combining clay soil with bottom ash on compressive strength and shear strength vales, it was done by combining bottom ash of 0%, 15%,20%,25%, and 30%. The test was carried out mechanically, namely direct shear strength and compressive strength testing to determine the correlation vetween the stress value (qu) and the direct shear value (Cu). From the results of this independent com[pressive strength test, the highest stress value (qu) was obtained at point 1 obtained at 30% variation of 0.278 (kg/cm2) and the direct shear strength lest obtained the highst direct shear value (Cu) at poin 1 obtaind at 30% variation of 0.111 (kg/cm2), at poin the 2 largest stress values (qu) are at 30% variation of 0.262 (kg/cm2) and the largest direct shear values (Cu) are at 30% variation of 0.103 (kg/cm2) . So it can be said that the value of the independent compressive strength test and the direct shear strength value are correlated with eact other because both have increased, the higher the bottom ash dose, the higjer the direct shear value (Cu) and the stress value (qu).
Pengaruh Penambahan Abu Sekam Padi dan Kapur Terhadap Tanah Lempung di Tawalian Timur Kabupaten Mamasa Irwan Lie Keng Wong; Ika Apriyani; Erni Sriwinda
Paulus Civil Engineering Journal Vol 5 No 3 (2023): Paulus Civil Engineering Journal Volume 5, No.3
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/pcej.v5i3.706

Abstract

Land is a means of supporting buildings such as buildings, land transportation buildings, and aqueducts, as the land is used as the site where the building is built, so the power of the land affects the safety and comfort of the building. However, not all soils have good support, therefore, less good soils need to be stabilized by solidification or mixing of added materials that can improve soil properties such as cement, fly ash, lime, sand, and others. This study aims to determine the sliding angle of the mixture of rice and lime ash with some variation in the level of added ingredients and through direct shear, with reference to the American Society for Testing Materials (ASTM D3080). In this study, additional material was tested on a mixture of Lempung Soil using less than 50% gravel and sand soil. The methodology in this study is to be a reference and future evaluation to further develop rice husks and lime ash waste as an additional material for direct shear testing. Water content is 55.949%, land weight is 39.22 gr/cm3, land type weight 2.34 gr/cm3, brick boundary Atterbag liquid limit 54.40, plastic limit 40.53 and plastic index 13.67.
Pengaruh Penambahan Limbah Bottom Ash Terhadap Kuat Geser Pada Tanah Eltrit Bima Fitrian; Demensi; Irwan Lie Keng Wong
Paulus Civil Engineering Journal Vol 5 No 3 (2023): Paulus Civil Engineering Journal Volume 5, No.3
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/pcej.v5i3.715

Abstract

The impact of adding bottom ash waste to a Direct Shear Test for clay soils with low shear strength and high compressibility is investigated in this study. The research entails evaluating the soil's physical properties and setting up bottom ash waste tests for the Direct Shear Test. For the first and second direct shear force tests, four test samples were utilized. The 15%, 20%, and 25% make up the utilized bottom ash waste mixture. The findings demonstrated that the soil possesses medium flexibility and inorganic clay's physical characteristics. In direct shear force testing, soil samples from points 1 and 2 yielded cohesion values (c) and shear angle values (). For point 1 soil samples, cohesiveness (c) values increased by 0.025 kg/cm2, 0.041 kg/cm2, 0.069 kg/cm2, and 0.076 kg/cm2, while shear angle (φ) values increased by 10.32°, 10.67°, 10.38°, and 14.16°. Additionally, cohesiveness (c) values of 0.048 kg/cm2, 0.077 kg/cm2, 0.084 kg/cm2, and 0.096 kg/cm2 and shear angle (φ) values of 11.82°, 14.35°, 14.20°, and 14.10° increased in Point 2 soil samples. According to the results, adding bottom ash waste increases the shear strength (c) and shear angle (φ) of the soil. It has been discovered that adding bottom ash waste to soil enhances its load-bearing capacity.
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