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All Journal Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Jurnal Teknik Sipil dan Teknologi Konstruksi Lowland Technology International INERSIA
Tri Harianto
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Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Neuroscience Public Health Transportation

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Journal : Lowland Technology International

 1 
DESIGN CRITERIA OF SOIL-FIBER MIXTURES AS A MATERIAL FOR LANDFILL COVER BARRIER SYSTEM Tri Harianto
Lowland Technology International Vol 16 No 1, June (2014)
Publisher : International Association of Lowland Technology

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Abstract

The design criteria were introduced in this paper to design a landfill cover barrier layer using the compacted soil-fiber mixture for the future application (i.e. park, residential, etc.). Polypropylene (C3H6) fiber was used as an additive material for soil samples. The soil specimens compacted under the conditions of maximum dry density and optimum water content. In this study, the design objective in using the compacted soil-fiber mixture is to determine the range of fiber content (i.e. 0.0% - 1.2%) within which the soil specimens will have adequate compaction characteristics, compressive and tensile strength, minimum amount of cracking, and low hydraulic conductivity. It is found that the fiber content that maximized the maximum dry density was considered insignificant. Fiber content in excess of 0.8% showed significant increase in the unconfined compressive strength. The tensile strength significantly increased for soil specimens exceeding 0.2% of fiber content. An acceptable limiting value of the crack intensity factor to prevent desiccation cracking for soil specimen was found between 0.6 and 0.8% of fiber content. Moreover, the fiber contents up to 1.2% maintained the hydraulic conductivity within acceptable levels. As a result, the optimum fiber content that was necessary to meet the overall acceptable zones based on the parameter design investigated in this study was found and reported in this study.
Study on the Correlation of CPT value to Soil Parameters Abigail Anggie Putriana Onggosandojo; Tri Harianto; Sitti Hijraini Nur
Lowland Technology International Vol 23 No 3 (2021): Lowland Technology International Journal
Publisher : International Association of Lowland Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.0001/ialt_lti.v23i3.1243

Abstract

Soil is one of the factors that has the most important role because it bears the burden of all the constructions that stand on it. Based on this very important role of soil, prior to the start of construction in a location, a soil investigation must be carried out first to find out the condition of the subgrade at the construction site. One of the most frequently used soil investigation methods is Cone Penetration Test (CPT). The purpose of this study includes two things, namely to determine the soil profile at the CPT test location, and to determine the correlation between the data from the Cone Penetration Test results with soil parameters (Soil Volume Weight, Cohesion, and Internal Shear Angle). The method used in this study is to analyze the data from the Cone Penetration Test using the results of the research that has been carried out as a basis for determining the soil profile and the required soil parameters. The results obtained are, the first is based on the data plot on the soil type graph at the Cone Penetration Test (CPT) test location spread over 4 zones, namely Zone 3, Zone 4, Zone 5, and Zone 6. The second is the correlation between soil unit weight and Conus Resistance values are directly proportional, as are Cohesion and friction angles. In addition, the equations used in this paper cannot be used as the main reference, but only used to predict soil parameters when in the field
Co-Authors Abdul Rahman Djamaluddin Abigail Anggie Putriana Onggosandojo Achmad Bakri Muhiddin Andi Arwin Amiruddin Ardi Arsyad Djamaluddin, Rudy Fakhruddin - Irmawaty, Rita Lawalenna Samang Muhammad Wihardi Tjaronge Parung, Herman Rauf, Ichsan Sitti Hijraini Nur Sukirman Nurdin