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All Journal Jurnal Ilmiah Desain & Konstruksi Jurnal Teknik Sipil Rekayasa Sipil Jurnal Teknik Sipil Borneo Engineering : Jurnal Teknik Sipil Jurnal Teknik Sipil Jurnal Jalan Jembatan
Sri Wulandari
Gunadarma University
Civil Engineering, Building, Construction & Architecture Environmental Science Transportation

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Journal : Rekayasa Sipil

 1 
STABILISASI TANAH GAMBUT MENGGUNAKAN ABU BOILER KELAPA SAWIT DITINJAU DARI NILAI CBR LABORATORIUM Fenny Bernavida; Sri Wulandari
Rekayasa Sipil Vol 15, No 1 (2021)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2021.015.01.2

Abstract

Palm oil boiler ash is the waste from the palm oil boiler combustion which contains a lot of silicates. In addition, palm oil boiler ash also contains inorganic cations such as potassium and sodium. Palm oil boiler ash is pozzolanic material, which is a non-binding material such as cement, but contains active Silica Oxide (SiO2) compounds which when reacted with free lime or calcium hydroxide (Ca (OH2)) and water will form materials such as cement, namely calcium Silica Hydrate. In this study, we will use palm oil boiler ash waste which has been stated to have good soil improvement results as a mixture of peat soil improvement in the hope of getting better improvement results from previous studies in terms of California Bearing Ratio values. The boiler ash to be used is a variation of the mixture of 0%, 5%, 10% and 15% to the weight of the soil sample and using 28 days treatment. The California Bearing Ratio value of the original peat soil is 0.247%, the percentage of 5% increases to 0.433%, at the percentage of 10% is 0.629% and at the percentage of 15% is 0,729%. 
PENGARUH PENAMBAHAN SERBUK KACA PADA STABILISASI TANAH LEMPUNG LUNAK DI DAERAH KABUPATEN KARAWANG Bayu Mustika Bhakti; Sri Wulandari
Rekayasa Sipil Vol. 17 No. 1 (2023): Rekayasa Sipil Vol. 17 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.01.13

Abstract

Problems that are often encountered in road construction are poor and unstable soil conditions. Soil conditions greatly affect the design process and the durability of the road. One thing that is usually done to improve soil properties is to add mixed materials to improve the soil properties. The purpose of this study was to determine the effect of adding Waste Glass Powder (WGP) on soil consistency and CBR value. The percentage of WGP used is 2.5%, 5%, 10%, 15% and 25%. The result is that the addition of WGP has significantly improved soil quality. The value of the plasticity index of the soil decreases, which means that the potential for swelling and shrinkage of the soil is also decreased. The CBR value of the soil also increased to 341.04%.    
Co-Authors Anastasia Maya Widya Ekaputri Bayu Mustika Bhakti Betty Suswati Dianita Dianita Dini Anani Dyna Prasetya Riani Ellysa Ellysa Fani Yayuk Supomo Farras Puti Dzakirah Febry Mandasari Fenny Bernavida Helmi Januar Hamzah Laurentia Natasha Prisca noviarti, rara dwi Nurfatihah Nurfatihah Nurul Badriyah Pangeran Holong Sitorus rara dwi noviarti Ridwan Setiadi Setiadi, Ridwan Yemima Jean Darmanis Silalahi