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All Journal Potensi : Jurnal Sipil Politeknik Inersia : Jurnal Teknik Sipil TEKNOSIA Abdi Reksa

Fepy Supriani

Universitas Bengkulu

Author-ID : 2763649

Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Engineering Social Sciences Transportation

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PENGARUH PENAMBAHAN SERAT BAMBU DAN PENGGANTIAN 10% AGREGAT HALUS DENGAN ABU SEKAM PADI DAN ABU CANGKANG LOKAN TERHADAP KUAT TARIK BETON Ade Sri Wahyuni; Akayzeh Dlucef; Fepy Supriani
Inersia: Jurnal Teknik Sipil Vol 5, No 2 (2013)
Publisher : Universitas Bengkulu

This study aimed to determine the effect of bamboo fiber addition and 10 % fine aggregate replacement with the mixture of Rice Husk Ash (RHA) and Sea-Shell Ash (SSA) toward the tensile strength of concrete. Bamboo fiber was used to add tensile strength in the matrix of concrete. The samples prepared were 21 cylinders, in which three samples of normal concrete were compared with 3 samples from each percentage of bamboo fiber (0.25% and 0.5%). The mixture of RHA and SSA was also divided into three different percentages i,e : 65:35 ; 50:50 and 35:65. The dimension of specimen is 15 cm in diameter and 30 cm in height. The specimen were cast and immersed in the soaking bath to be tested on day 28 in reference to the standard SK. SNI 03-2491-2002. The graph shows that, 0,5% addition of bamboo fiber with mixture of RHA and SSA 35:65, has the higher tensile strength than normal concrete (16%).

ANALISIS OPTIMASI BIAYA KONSTRUKSI KOLOM DENGAN VARIASI NILAI ? DAN fc' Gerry Revaldo Gerry Revaldo; Fepy Supriani; Mukhlis Islam
Inersia: Jurnal Teknik Sipil Vol 5, No 1 (2013)
Publisher : Universitas Bengkulu

This research aims to study the most optimum and economical of square reinforced concrete column with the variation of ? and fc'. Process optimization in this study requires repetitive calculations by using a Microsoft Office Excel. Analysis of the cost of construction of reinforced concrete columns square cross-section consists of 840 samples with variation of column section dimensions, compressive strengths of concrete (fc'), nominal axial capacity of columns (Pn), and nominal bending moment capacity of column (Mn). The results of the sample analysis are interaction charts corresponding column dimension and cost and interaction of fc' and cost consisting of 1,152 charts and also produces composite charts from the previous chart, which is the interaction, among dimension, fc', and cost of column consists of 96 graphs with variation column without using formwork, formwork 1 time use, of formwork used 2 times, 3 times and use disposable formwork. Hence from all of the cost of the optimum structure of the column with the variation of the Mn and Pn of could be concluded that the greater the value of Mn while Pn constant the of value of ?, column dimensions, and cost structure would dominantly increase and it could be concluded also that the greater the value of Pn with constant Mn value then the value of ? and the cost structure would dominantly decrease while the dimensions have not changed and the compressive strength of concrete (fc') used are 25 MPa - 30 MPa.

ANALISIS OPTIMASI BIAYA KONSTRUKSI BALOK DENGAN VARIASI NILAI ? DAN fc’ Marrolan Marrolan; Fepy Supriani; Mukhlis Islam
Inersia: Jurnal Teknik Sipil Vol 5, No 1 (2013)
Publisher : Universitas Bengkulu

he research was motivated by the desire to obtain inexpensive (optimum) and adequate capacity of structure. This study aims to determine the variation of ? value and fc' on a single reinforcement concrete beams that can produce the most optimum and economical construction. This study used optimization process that requires repetitive calculations, hence the research was categorized as applied research. This cost analysis of a single reinforced concrete beamconsisted of 200 samples for each concrete compressive strength (fc') of 25-35 MPa with an increment of 2.5 MPa. The results of sample analysis produce ? interactions graphs and charts interaction between cost and fc’. In addition, the cost calculations were made assuming the cost without using formwork and using formwork of once until three time usage. This research produced graphic to observe the most optimal and economic reinforcement ratio. Based on the variation of nominal moment, the values of ? was needed for without formwork cost calculation at range of between 0.56-0.66 (times ? needed max ), and the values of ? was needed for the cost calculation by once until three times formwork assumtion at range of beetwen 0.92-1 (times ?max), 0.75-1 (times ?max), and 0.69-1 (times ?max needed) respectively.

PENGARUH PENGGUNAAN ZEOLIT SEBAGAI BAHAN PENGGANTI SEBAGIAN SEMEN TERHADAP KUAT TEKAN PAVING BLOCK KONVENSIONAL Agung Rizki Pratomo; Fepy Supriani; Agustin Gunawan
Inersia: Jurnal Teknik Sipil Vol 10, No 2 (2018)
Publisher : Universitas Bengkulu

This research was motivated by the contained SiO2 in zeolite. The purpose of this research was to know the zeolite effect as a substitute of cement in constructing 14 days paving block material which used conventional method toward the compressive strength of paving block. This research used SNI 03-06-1996 in constructing and testing the materials. The material was cube shaped with ±5 cm size which consists of normal paving block and 6 variations with 5 specimens of each variation. Total of specimen were 35. Substitute of zeolite variations used 2,5%, 5%, 7,5%, 10%, 12,5%, and 15% on the weight of cement. The result of compressive strength of normal paving block is 15,64 MPa. The result of compressive strength test had increased in the variation of 2,5% zeolite substitute by 6,28% normal paving block. The result of compressive strength test results showed the greatest decrease in variation of 15% zeolite replacement by 39,05% against normal paving block.

PENGARUH PENAMBAHAN ABU SEKAM PADI (ASP) TERHADAP KUAT TEKAN DAN ABSORPSI BATA MERAH Rudi Hartono; Elhusna Elhusna; Fepy Supriani
Inersia: Jurnal Teknik Sipil Vol 7, No 1 (2015)
Publisher : Universitas Bengkulu

Penelitian ini bertujuan mengetahui besarnya pengaruh penambahan abu sekam padi (ASP) terhadap sifat mekanis bata merah (kuat tekan dan absorpsi) dan persentase penambahan ASP yang terbaik untuk campuran bata merah. Metode penelitian yang digunakan berupa eksperimen dengan menambahkan ASP sebagai bahan campuran pembuatan bata merah. Variasi sampel bata merah yang dibuat yaitu bata normal (R0) dan bata merah dengan penambahan ASP (5%, 10%, 15%, 20% dan 25%). Jumlah sampel benda uji untuk masing-masing persentase penambahan ASP adalah sebanyak 20 buah bata merah. Berdasarkan penelitian yang dilakukan kuat tekan tertinggi terdapat pada sampel bata R0 (3,164 MPa), sedangkan kuat tekan terendah terdapat pada bata merah dengan persentase penambahan ASP 25% (1,030 MPa). Nilai absorpsi terbesar terdapat pada bata merah dengan penambahan ASP 25% (28,2%) dan yang terendah terdapat pada bata merah normal (23,1%). Berdasarkan hasil pengujian kuat tekan dan absorpsi bata merah dapat disimpulkan bahwa penambahan ASP dapat menurunkan nilai kuat tekan bata merah dan menaikan persentase absorpsi. Nilai kuat tekan berbanding terbalik dengan absorpsi bata merah.

PENGARUH PENAMBAHAN SERAT PANDAN PUNDAK DURI (PANDANUS TECTORIUS) TERHADAP KUAT TARIK BELAH BETON Sherly Marlia; Agustin Gunawan; Fepy Supriani
Inersia: Jurnal Teknik Sipil Vol 8, No 2 (2016)
Publisher : Universitas Bengkulu

Concrete is a material that is high in compression, but weak in tensile. The weakness of concrete can be minimized by conducting several concrete development. Fiber-reinforced concrete is concrete given the addition fiber in the concrete mixture. Pandanus tectorius spines fairly high in fiber, so that should be developed in the technology of materials, particularly concrete engineering fields. This study aims to determine the value of tensile strength of concrete sides and variations of the fiber increment persentage in the concrete that would get the highest tensile strength. Tested specimen for tensile strength was cylindrical with 30 cm in height and 15 cm in diameter.There was 4 variations of pandanus tectorius fiber addition, consecutively 0.25%, 0.5%, 0.75% and 1%. The water cement ratio used was 0,5 with slump range between 60-100 mm. The addition of pandanus tectorius fiber gave a lower tensile strength than normal concrete. The lowest and highest strength was consecutively 9,687%(variation 0,25%) and 25,718% (variation 1%).

ANALISIS TIPIKAL RUMAH DI KOTA BENGKULU DAN KESESUAIAN DENGAN RUMAH TAHAN GEMPA Fepy Supriani
Inersia: Jurnal Teknik Sipil Vol 2, No 2 (2011)
Publisher : Universitas Bengkulu

Houses in the city of Bengkulu has several typical, both technical and non-walls house technical, semipermanent houses an d wooden houses. In some earthquakes that occured in the city of Bengkulu, the damage most occur in homes walss. A typical home built to include permanent and non permanent home that can be characterized based on the type of foundation, walls, strengthening structure and type of roof. This determines the typical damage caused by earthquake. The analysis was performes on 200 samples of homes in the city of Bengkulu using the method of observation and survey instrument interviews with written and directed. The result show that many typical houses in Bengkulu is home walls (89%) using continuous foundation stone (67.10%) and zinc roof coverings (65.80%). While strengthhening the structure used standard (Sloof 71.6%, 40.65%) and the column or beam around the ring either 50.32%), although the typical house has indicated the implemnentation of retrofitting structure not taking into account the buliding to earthquake or follow the requirements of earthquake resistant buildings, the use of tin roof was according to house quake-prone region.

PENGARUH MODULUS HALUS BUTIR PASIR LAUT TERHADAP KUAT TEKAN BETON (Tinjauan Penggunaan Pasir laut di Kota Bengkulu) Fepy Supriani
Inersia: Jurnal Teknik Sipil Vol 8, No 1 (2016)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.8.1.1-10

The availability of the sand in the coastal regions enable the society nearby to use it directly as one of the material of the concrete building. The coastal fine sand with round surface, and uniform grading will reduce the interlocking among the granules. The sand of each region on the coast of Bengkulu visually have different characteristics, also if compared with river sand and mined sand, especially the fineness of the grain. The level of the grain fineness can be seenfrom the grain fineness modulus. This study aims to find out the use of the coastal sand of different fineness to the strength of concrete, as well as the effect of concrete curing by using sea water and fresh water to the strength of the concrete. The coastal sand used in this study was taken from North Bengkulu areas namely Lakok beach, Sentolong beach and Air Padang beach. Each of the sands visually are different in color and grain size. As the comparator, river sand and mined sand are used. The designed samples are concrete cube with dimensions of 15 cm, water to cement ratio of 0.5 and 50-120 mm slump. The test was conducted at 28, 56 and 90 days of the concrete ages. The results showed that the usage of the sand in concretematerials can provide a positive outcome for the coastal sand with coarse gradations and modulus of grains. The usage of Lakok beach sand in concrete test results show that for any age of the concrete samples, the concrete compressive strength are the highest, even exceeds the compressive strength of the concrete using river sand and mined sand. Air Padang beach sand has the finest gradation and produces concrete samples with the lowest compressive strength. The concrete cured by submersion in sea water has lower compressive strength of the concrete compared to the concrete cured by submersion in fresh water.

PENGARUH SERAT SABUT KELAPA TERHADAP KUAT LENTUR BETON DENGAN FAKTOR AIR SEMEN O,5 Elhusna Elhusna; Fepy Supriani; Agustin Gunawan; Mukhlis Islam
Inersia: Jurnal Teknik Sipil Vol 3, No 1 (2011)
Publisher : Universitas Bengkulu

18 slabs of 100x100x500 mm dimension had been tested to find out the influence of coconut fiber as the additive to the flexural strength of concrete. The water ratio of the concrete mix design was 0,5. The percentation of coconut fiber were 1%, 2%, 3%, 4% and 5% of the volume of the specimen. The result showed that the fiber additional to the concrete cause the strength getting higher as the percentation getting bigger. The flexural strength of 5% the fiber was 30% higher than the slab of the concrete without the fiber.

ANALISIS KUALITAS KONSTRUKSI PERUMAHAN REAL ESTATE DI KOTA BENGKULU BERDASARKAN PERSEPSI KONSUMEN DAN KESESUAIAN PERSYARATAN TAHAN GEMPA Meilia Evita; Fepy Supriani
Inersia: Jurnal Teknik Sipil Vol 4, No 2 (2012)
Publisher : Universitas Bengkulu

This research aims to know the quality of real estate construction according to consumers’ perception and compatibility of requirement. The requirement used in this research is the Technical Guidelines of Earthquake-Resistant House and Building. Besides, according to consumers’ perception, it can elaborate the main priority of the increasing quality of developer’s performance. The research used survey methods. They were field observation, interview, and distributing 146 questionnaires which take sample in six real estate residences in Bengkulu. The questionnaire was analyzed using frequency distribution method, mean and rank, and importance-performance. The result of analysis elaborated that the construction quality of real estate residence according to consumers’ perception is quite good with percentage 65, 147%. The priority indicators to increase the performance of real estate developer are the quality of floor, wall, frame, door, and window. On the other hand, the quality of real estate residence according to working compatibility with earthquake-resistant requirement, it is quite good with percentage 64,236% and compatibility of material with earthquake resistant requirement is in good quality with percentage 94,639%.

Co-Authors Ade Sri Wahyuni Agung Rizki Pratomo Agustin Gunawan Agustin Gunawan Akayzeh Dlucef Annisa Fitria Edriani Elhusna Elhusna Fazriati Utami Gerry Revaldo Gerry Revaldo Iqbal Alfayed Lindung Zalbuin Mase Marrolan Marrolan Meilia Evita Mukhlis Islam Rudi Hartono Sherly Marlia Yoka Mahendra Yuzuar Afrizal Yuzuar Afrizal

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