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All Journal Jurnal Rekayasa Jurnal Rekayasa Sipil dan Desain Jurnal Pengabdian Masyarakat Indonesia Seminar Nasional Insinyur Profesional (SNIP) Prosiding Seminar Nasional Hasil Penelitian Sains, Teknik dan Aplikasi Industri Fakultas Teknik Universitas Lampung JOURNAL OF PEOPLE, FOREST AND ENVIRONMENT
Lusmeilia Afriani
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Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Public Health Social Sciences Other

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Journal : Jurnal Rekayasa

 1 
Pengaruh Fraksi Pasir Dalam Campuran Tanah Lempung Terhadap Nilai CBR dan Indeks Plastisitas Untuk Meningkatkan Daya Dukung Tanah Dasar Lusmeilia Afriani; Yan Juansyah
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 20, No 1 (2016): Edisi April 2016
Publisher : UNIVERSITAS LAMPUNG

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Abstract

CBR-value is used as an index of soil strength and bearing capacity. This value is broadly used and applied in design of the base and the sub-base material for pavement. Sand –stabilized soils are often used for the construction of these pavement layers and also for embankments. CBR-value is a familiar indicator test used to evaluate the strength of soils for these applications. CBR-test was conducted to characterize the strength and the bearing capacity of the studied soils and their mixtures with sand. CBR-values of the diference soils, compacted at optimum water content, Atterbeg limit are given in this report. All the specimens were prepared using a standard proctor test. The results of the research will be made in the form of a graph on the relationship between the value of CBR to the liquid limit., LL, maximum dry density. The results also will display the graphic relationship between the plasticity index with content of sand fraction and clay fraction. The test results show that the Atterberg limits that a percentage of the original soil and addition of sand. ff (loose soil). The results showed that Relationships LL CBR value and the fraction of sand fraction that the lower the value of LL will increase the value CBRnya. The results showed that the content of the sand can increase the value CBRn. CBR value is highest at 71.11% sand content.
Study Analisis Penurunan Tanah Lempung Lunak dan Lempung Organik Menggunakan Pemodelan Matras Beton Bambu dengan Tiang Iswan Iswan; Lusmeilia Afriani; Ikratul Herman
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 20, No 3 (2016): Edisi Desember 2016
Publisher : UNIVERSITAS LAMPUNG

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Abstract

This study aims to determine the magnitude of the decline in clay, by comparing the reduction in soft clay soil of the village Belimbing Sari and organic clay from the village of Beteng Sari, using concrete reinforcement mats and bamboo poles to increase the carrying capacity of the land, because the clay when getting the imposition of the will experience a significant drop. This research was conducted by making test Boks modeling land subsidence, and perform impairment testing ground that has been given concrete reinforcement using a bamboo mat with a pole on soft clay soil of the village Belimbing Sari and organic clay from the village of Beteng Sari. Using weights ranging from 0.2 kg/cm2, 0.3 kg/cm2, 0.4 kg/cm2, 0.5 kg/cm2. Testing was conducted on the impairment testing ground to seek consolidation coefficient (Cv), congestion coefficient of volume (Mv), compression index (Cc) and coefficient of compression (Av). Based on the research results, the test box, the decline in clay is lower than the original soil testing, this happens because the test soil reinforcement box has been given a concrete form bamboo mat with a pole. From this it can be concluded that the carrying capacity of the clay to get better after being given reinforcement.
Pengaruh Waktu Perendaman Terhadap Uji Kuat Tekan Paving Block Menggunakan Campuran Tanah, Semen Dan Abu Sekam Padi dengan Alat Pemadat Modifikasi Iswan Iswan; Lusmeilia Afriani; Hedi Saputra
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 20, No 2 (2016): Edisi Agustus 2016
Publisher : UNIVERSITAS LAMPUNG

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Abstract

Paving block is made of by mixturing cement portland or other hidrolic material, water, and agre- gate or without any other material. In this research paving blok will be made by using of soil, ce- ment, and rice husk ash. Besides, soaking of paving block is aimed to improve compressive the paving block that is suitable with SNI 03-0691 (1996). The samples of soil that is used came fromq ITERA, South Lampung. The making of paving block samples consists of two stages. First, mixture A (10% of cement, 5% of rice husk ash, 85% of silt soil) and mixture B (15% of cement, 5% of rice husk ash, 80% of silt soil) and the making of samples in the second stage is to deter- mine the effect of immersion of compressive the paving block in which the samples using is sam - ples with optimum compressive result from making samples in the firsh strage by time variant in 0 day, 7 days, 14 days, 21 days and 28 days and also by doing pre-burning and post-burning. From the experiment result of innovation compressive this paving block includes to the quality class D and absorption of paving block that is made of mixturing soil, cement, and rice husk ash is not ap- propriate with SNI 03-0691 (1996). The adding of rice husk ash gives a little influence in improv- ing compressive of paving block. The soaking that is done to paving block causing the decrease of compressive till 45,7%. The highes compressive produced by paving block post-burning during immersion 0 day that is 11,70 Mpa.
Co-Authors 2016_Monica destia Abdil Hafizh Arrofiq Ahmad Zakaria Amril Ma'ruf Siregar Amril Ma`ruf Siregar Annisa Tiara Rulya Aria Febriantama Aulia R Sudarman Bainah Sari Dewi Chintia Makki Datra Peta Saputra Dedi . Dikpride Despa Fadli Imran Fajar Destri Atmoko Fransiskus Afrie Gde Satya Yudha Tama Habibi Nur Arifin Hany Octavia Anggraini Hedi Saputra idarmahadi adha Idharmahadi Adha Ikratul Herman Irza Sukmana Iswan Iswan Ivan Sukastian karina apriliani puspa zulmi M. Iqbal Hermawan Mohammad Yogi Alnasir Monica destia muhamad rizki rinaldi Muhammad Malik Purnama Muhammad Wahyuddin mutia andriani Nawawi Nawawi Novita Nurdiana Ofik Taupik Purwadi oktario eko hidayat Renold Pangidoan Rambe Rian Alfian Rizki Dwi Putra Ryzal Perdana Setyanto Setyanto Sugeng p Harianto Syahreza Nurdian Yan Juansyah Yohanes Martono Hadi yota pentawan yusuf sukamto