Claim Missing Document
Check
Articles

Found 3 Documents
Search

Studi Kekuatan Batu Bata Pasca Pembakaran Dengan Menggunakan Bahan Additive Serbuk Gergaji Kayu Setyanto Setyanto; Iswan Iswan; Hari Diantoro Rahmad
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 19, No 2 (2015): Edisi Agustus 2015
Publisher : UNIVERSITAS LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Increasing construction in Indonesia and the number of population which is increasing every year must be supported by better economy growth. Thus, the construction materials will continue to increase to support the needs of infrastructure construction. To support the development and growth, then brick as a construction material will be needed. One of the method that can be used to improve the quality of the soil material is to use mixing ingredients (additives) such as sawdust to facilitate the combustion process and as a pore-forming on bricks. Based on the explanation above , it is necessary to do an objective study of making bricks, so that sawdust can be used as an right mix alternative in the manufacture of bricks, in the hope of sawdust waste is not wasted, but it can add power to brick and can produce bricks with good quality. Soil samples were tested in this study is a fine-grained soil from the Yosomulyo village, East Metro District, Metro City. Variations in the levels of the mixture used is 5%, 10%, 15% and 20%, with a curing time of 14 days as well with post-combustion treatment on the brick. Based on the results of physical testing of the original soil, USCS classified the soil samples as fine-grained soil and included in the ML group. This study used additive materials, such as wood sawdust mixture, on the mixture of 5% level, red brick experienced an escalation compared to bricks that are not mixed with additive materials. At the levels of a mixture of 10%, 15% and 20%, bricks decreased, both in terms of compressive strength and quality of bricks. So, in a mixture of 10%, 15% and 20%, the brick is not recommended for use as a building material because it does not fit to the requirements of SNI 15- 2094-2000 and water absorption rate is only 15% the level of compliance with the standards between 14% to with 18%.
PENGARUH WAKTU PEMERAMAN TERHADAP KEKUATAN PAVING BLOCK PASCA PEMBAKARAN MENGGUNAKAN MATERIAL TANAH DAN KAPUR UNTUK JALAN LINGKUNGAN Andius Dasa Putra; Setyanto Setyanto; Onika Permata Sari
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 18, No 3 (2014): Edisi Desember 2014
Publisher : UNIVERSITAS LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Infrastructure rapid development sometimes had negative impact, such as the use of impermeable pavement layers which result the infiltration be hampered. By utilizing the paving block, it can resolve o f infrastuture development problem. Known, paving block is composition of building materials that made from the mixture of portland cement or hydraulic adhesives, water, and agrregates with or without the other ingridient as defined in SNI 03-0691-19996. To find the other alternatives then will do the assesment with the limestone and soil. Soil samples were tested from Desa Karang Anyar, South Lampung. The composition of mixture was used 6 %, 8 % and 10 %, with curing time during 7, 14 and 28 days, and the treatment with or without combustion and then paving block were tested with compressive strength and water absorption. The research results obtained by the characteristics of the soil is a clay samples. The average value of compressive strength was linearly proportional to the amount of lime composition. The compressive strength during 28 days of curring time and without combustion was from 32,96 kg/cm2 to 10,87 kg/cm2, then the compressive strength with combustion was from 16,99 kg/cm2 to 56,91 kg/cm. Water absorption test value was inversely proportional to the amount of lime composition. The water absorption was from 10,07% to 15,07%. The compressive strength resulting over all still not include the specifications of paving block in SK - SNI 03-1996, also for the compressive strength was 85 kg/cm2. The value of water absorption test were not include the specifications of paving block SK SNI - 03 - 0691-1996 which ranges from 3 % - 10 %.
Perencanaan Dinding Penahan Tanah Concrete Cantilever Dengan Menggunakan Program Plaxis (Studi Kasus : Jalan Liwa – Simpang Gunung Kemala Krui KM.264+600) Restu Arga Winanda; Setyanto Setyanto; Yohanes Martono Hadi
Jurnal Rekayasa Sipil dan Desain Vol 5, No 4 (2017): Edisi Desember 2017
Publisher : Jurnal Rekayasa Sipil dan Desain

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Landslides in Bukit Barisan Selatan National Park (TNBBS) usually occur during the rainy season, because the intensity of the rain more than usual, causing soil to become saturated with water in which the soil is no longer able to accommodate the water into the pores so that the pore water will rise resulting in shear strength become so small that the land becomes unstable and prone to landslides. Plaxis is a computer program based on two-dimensional finite element method that is used specifically to perform deformation and stability analysis for various applications in the geotechnical field by modeling geometry and mesh elements based on cross section. From the analysis of slope stability with a height of 10 m, the slope is expressed in critical condition. The countermeasures are carried out with three conditions, the slope with cantilevered wall strengthening B is considered safe because it has a safety factor value of 1.4953, and the smallest displacement and settlement value between two other conditions and satisfies the shear stability of 2.8200> 2 (Safe), the stability of overturning 3.9631> 2 (Safe) and soil bearing capacity is 2.2782> 2 (Safe). Keywords: slope stability, safety factor, plaxis, cantilevered retaining wall.