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PENGARUH PENCAMPURAN SEMEN TERHADAP KUAT GESER TANAH LEMPUNG LAMPOH KEUDE Muhammad Zardi; Mukhlis Mukhlis
Jurnal Teknik Sipil Unaya Vol 1, No 2 (2015): Juli 2015
Publisher : Center for Research and Community Service (LPPM) University of Abulyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30601/jtsu.v1i2.13

Abstract

The aim of the tests was to investigate the influence of cement on clay of Lampoh Keude Village Kuta Baroe district Aceh Besar district. Results to be seen is parameters of shear angle (ø) and cohesion (c) of the direct shear test. Normal stress to be given to direct shear test is 0.305 kg/ cm2, 0.634 kg  cm2 and 1.293 kg /cm2 with optimum moisture content obtained 23.15% and the dry volume weight 1.438 gr /cm2. This study tested three samples for each percentage mixture of 0%, 4%, 8%, 12% and 16% with one day curing period. The amount of specimen without cement mixture was made of 3 specimens and without cement mixture was made of 12 specimens for 3 repetitions testing. Soil testing in the lab include testing the physical properties of the native land, the mechanical properties of the native land and land with a cement mixture. Based on the testing  of the physical properties of the native land, AASHTO classifying soil in group A-7-6 (11) and USCS classifying soil as a silt and clay in CH group. The addition of cement shows the stability of direct shear tests with increases of  cohesion (c) and friction angle (ø) is 0% cement is c = 0.797 kg/cm2 and  ø = 31.45o, 4% cement is c = 1.326 kg/cm2, ø = 36,22o, 8% cement is c = 1.529 kg/cm2 and  ø = 38,55o, 12% cement is c= 1.950 kg/cm2, ø = 38,11o and 16% cement is c = 2.084 kg/cm2, ø = 39,01o. Direct shear test results by mixing cement on clay showed an increase cohesion (c) and friction angle (ø) parameters.
Studi Perbandingan Karakteristik Data Klimatologi Stasiun Badan Meteorologi Klimatologi dan Geofisika (BMKG) Aceh Lores Sudarta; Ichsan Syahputra; Muhammad Zardi; Cut Rahmawati
Jurnal Teknik Sipil Unaya Vol 7, No 1 (2021): Januari 2021
Publisher : Center for Research and Community Service (LPPM) University of Abulyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30601/jtsu.v7i1.1543

Abstract

Data used in this case study, rainfall data (mm), temperature (ᵒC), humidity (%), duration of sun exposure (hours), wind speed (m / s). Data collection methods used in this study include, primary data obtained directly by conducting field research using Davis Vantage VVE 6250 Wireless Weather Station. And secondary data is obtained online from the official website data onlineBMKG.go.id. by taking data from 2010 to 2019 in a period of 10 years. With research locations: Mandiri Station, Lambaro Skep, Kuta Alam, Banda Aceh City. Class I Meteorological Station, Sultan Iskandar Muda, Aceh Besar. Meteorological Station Class IV, Lampanah Teungoh, Indrapuri, Aceh Besar. Cot Ba'u Class III Meteorological Station, Sukajaya, Sabang City, Aceh. Malikul Saleh Meteorological Station, Lhoksmawe, North Aceh. Cut Nyak Dhien Meteorological Station, Nagan Raya. Frequency analysis parameters include the parameter average value, standard deviation (Sd), coefficient of variation (Cv). Kurtosis Coefficient (CK) Calculation of these parameters is based on the record of the average daily rainfall of the maximum maximum of the last 10 years. Analysis of rainfall frequency distribution and birthday period (PUT). Analysis of Normal Distribution, Normal Log Distribution, Pearson Type III Log Distribution, Gumbel Distribution, and for analysis methods using isohyet methods, and arithmetic.
PENGARUH PERSENTASE PENAMBAHAN SIKA VISCOCRETE-10 TERHADAP KUAT TEKAN BETON Muhammad Zardi; Cut Rahmawati; T Khamarud Azman
Jurnal Teknik Sipil Unaya Vol 2, No 1 (2016): Januari 2016
Publisher : Center for Research and Community Service (LPPM) University of Abulyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30601/jtsu.v2i1.18

Abstract

Building structure often use concrete as the main structural material, in which the concrete-forming materials such as cement, sand, gravel, water and additives. The aim of study is to investigate the influence of addition of Sika Viscocrete-10 toward concrete compressive strength. Concrete is planned with Water Cement Ratio 0.3. Slump values obtained for normal concrete with maximum aggregate diameter of 25.4 mm is 7.8 cm. The values are in accordance with the slump plan of 7.5 to 10 cm, meanwhile values slump that use Sika Viscocrete-10 as much as 0.5% is 19.5 cm; Sika Viscocrete-10 as much as 1% is 21.9 cm; Sika Viscocrete-10 as much as 1.5% is 23 cm; and Sika Viscocrete-10 as much as 1.8% is 24.7 cm. Based on these test results, the conclusion is addition of Sika Viscocrete-10 is able to enhance the workability value of concrete, so it is easy to work. Concrete mix design using the American Concrete Institute (ACI). Specimens used in this study is a standard concrete cylinder diameter of 150 mm and a height of 300 m, tested after the age of 14 days. Number of test specimens for all treatments is 25 with 5 specimens in each treatment. The average compressive strength of concrete with normal mixture is 295.43 kg/cm2; for concrete with Sika Viscocrete-10 as mush as 0.5% is of 376.50 kg/cm2; Sika Viscocrete-10 as mush as 1% is 452.94 kg/cm2; Sika Viscocrete-10 as mush as 1.5% is 501.63 kg/cm;2 and Sika Viscocrete-10 as mush as 1.8% is 515.78 kg/cm2. Concrete compressive strength greater with increasing percentage of Sika Viscocrete-10.
Hubungan Antara Tinggi Balok Dan Luas Tulangan Pokok Pada Balok Portal Nur Fadhillah; Muhammad Zardi; Zainuddin Zainuddin
Jurnal Teknik Sipil Unaya Vol 6, No 2 (2020): Juli 2020
Publisher : Center for Research and Community Service (LPPM) University of Abulyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30601/jtsu.v6i2.1542

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh tinggi balok H = 1/12 L-1/10 L terhadap luas tulangan balok yang digunakan pada konstruksi bangunan. Variabel yang ditinjau dalam penelitian ini merupakan tinggi balok dan luas tulangan pokok. Model struktur portal yang ditinjau ialah portal dalam bentuk tiga dimensi dan bertingkat tiga. Analisis struktur dilakukan dengan menggunakan bantuan Aplikasi SAP 2000 versi 20.2. Perhitungan beban mati dan beban hidup gedung ini berdasarkan pada peraturan SNI 03-1727-2013, perhitungan beban angin berdasarkan pada Pedoman Peraturan Pembebanan Indonesia untuk Gedung 1987, perhitungan beban gempa berdasarkan pada SNI 1726-2012. Hasil dari penelitian ini menunjukkan bahwa terjadi pembesaran luas tulangan balok dari tiap-tiap penampang yang berbeda, dimana semakin besar penampang/tinggi balok semakin besar luas tulangan, pengaruh besarnya luas tulangan terjadi pada balok H=1/10L-1/11L, Perbedaan luas tulangan berdasarkan perencanaan berdasarkan momen ultimit (Mu) terhadap balok adalah (30x40)cm= As = 397,38 mm2, As’ = 198,69 mm2. (20x35)cm= As = 299,03 mm2, As’ = 114,51 mm2. (25x40)cm= As 331,15 mm2, As’ 165,58 mm2. (20x30)cm= As 193,13 mm2, As’ 96,56 mm2. (25x35)cm= As 286,28 mm2, As’ = 143,14 mm2. (20x25)cm= As = 157,23 mm2, As’ 78,62 mm2. Luas tulangan balok yang lebih efisiensi dalam perencanaan gedung ini adalah balok 1/12 L ukuran (25x35)cm dan ukuran (20x25)cm.
Pengaruh Penambahan Limbah Karbit Terhadap Stabilisasi Tanah Daerah Rawa Ikhsan Nur Amarullah; Muhammad Zardi
Jurnal Teknik Sipil Unaya Vol 5, No 1 (2019): Januari 2019
Publisher : Center for Research and Community Service (LPPM) University of Abulyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30601/jtsu.v5i1.1077

Abstract

This study aims to determine the effect of the addition of carbide waste as a stabilizing material to the value of the CBR (California Bearing Ratio) and peat soil direct shear. The land used came from Lueng Gayo Village. The CBR value increased from 1.63% in the original soil to 17.09% in a mixture of 15% carbide waste, this is caused because the elements contained in carbide waste such as silica (SiO2) and calcium oxide (CaO) which act to fill the pore empty pores. The value of the shear angle (φ) has increased from 20.24o in the original soil to 29.02o in the mixture of carbide waste, this is caused by chemical reactions that occur due to mixing of chemical elements, especially (Ca) contained in the carbide waste. The cohesion value (c) has decreased from 0.12 kg / cm2 in the original soil to 0.09 kg / cm2 in the carbide waste mixture. This is caused by the reaction of carbide waste which is absorbing water, causing inter-particle decline. The value of the shear strength increased 0.22 kg / cm2 at the addition of 5% carbide waste, then decreased 0.17 kg / cm2 at the addition of 10% and increased 0.29 kg / cm2 at the addition of 15% carbide waste. This is due to chemical reactions that occur due to mixing of chemical elements contained in carbide waste
Analisis Tarif Angkutan Umum Berdasarkan Biaya Operasi Kendaraan Muhammad Zardi; Meliyana Meliyana; Defi Mahdiahinda
Jurnal Teknik Sipil Unaya Vol 4, No 2 (2018): Juli 2018
Publisher : Center for Research and Community Service (LPPM) University of Abulyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30601/jtsu.v4i2.33

Abstract

The aim of this study is to analyze the Vehicle Operational Cost (VOC) and tariff based on the calculation of VOC and compare with the prevailing tariff in Blang Pidie-Banda Aceh route. Primary data was carried out by surveys, among others, physically survey of the vehicles, number of vehicles and passengers, and investigation survey. Secondary data was obtained from the relevant government institutions. The results of the analysis showed that the average passenger load factor of the inter-city transportation route of Blang Pidie-Banda is 56.25%. The average tariff set by the government is Rp. 106,500/passenger, the average tariff calculated by VOC for Blang Pidie-Banda Aceh route is Rp. 114,014/passenger, while the average rate applied in the field is Rp. 125,000/ passenger. The calculation of Cost of Production (COP) is Rp. 103,649/passenger-km. While the ability to pay (ATP) of the public transport services users is Rp. 208,333. Tariffs based on Vehicle Operating Cost (VOC) are smaller than the prevailing rates in the field and the rates applicable in the field are also higher than the rates set by the local municipality.
PERILAKU PUNCHING SHEAR PADA HUBUNGAN KOLOM BULAT DENGAN FLAT SLAB AKIBAT BEBAN TEKAN AKSIAL Muhammad Zardi
Jurnal Teknik Sipil Unaya Vol 1, No 1 (2015): Januari 2015
Publisher : Center for Research and Community Service (LPPM) University of Abulyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30601/jtsu.v1i1.1

Abstract

The aim of the tests was to investigate the influence of concrete strength, the eccentricity of the column and the use of shear reinforcement in flat slabs on punching shear. The research specimens are 8 units of flat slabs. Flat slab size 1400 x 1400 mm2 with thickness of 120 mm. Flat slabs were connected with circular column with dimension 225 mm  of diameter and 200 mm of height. Flat slabs were made in to 2 variations of concrete strength, e.i. 30 MPa and 60 MPa, 2 variations of shear reinforcement, e.i. without shear reinforcement and with shear reinforcement and 2 variations of eccentricity that, e.i. without eccentricity and with eccentricity. Each treatment has 1 specimen. Each specimen has 6 cylinder specimens. Cylinder specimens used as a concrete strength control for main specimen (flat slab). The tests showed that the concrete strength had a strong influence on punching shear strength. This is shown by capacity increase of 42.78%; 54.00%; 46.59% and 0.02%. The value is ratio between the maximum load of the specimens with 60 MPa and 30 MPa at the same eccentricity and the same shear reinforcement. The eccentricity of column reduce the capacity of punching shear. This is shown by 3 specimens decrease in capacity of 3.70%; 36.75% and 7.30%. Only 1 specimen that increase in capacity of 9.27%. The value is ratio between the maximum load of the specimens with 40 mm eccentricity and 0 mm eccentricity at the same compressive strenght and the same shear reinforcement. The use of shear reinforcement does not always increase the punching shear capacity. There are 2 observations that increased capacity (52.07% and 65.37% at the centric load) and 2 observations decreased capacity (0.12% and 4.92% at the eccentric load). The value is ratio between the maximum load on the specimens using shear reinforcement with the specimens that do not use shear reinforcement at the same compressive strenght and the same eccentricity.The use of shear reinforcement increase punching shear capacity of flat slab at the centric load condition. The use of shear reinforcement decrease punching shear capacity of flat slab at the eccentric load condition.
Analisis Efektivitas Saluran Sekunder Blang Bintang Daerah Irigasi Krueng Aceh Kabupaten Aceh Besar Riandy Ferdila Putra; Meliyana Meliyana; Muhammad Zardi
Jurnal Teknik Sipil Unaya Vol 7, No 1 (2021): Januari 2021
Publisher : Center for Research and Community Service (LPPM) University of Abulyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30601/jtsu.v7i1.1142

Abstract

Irrigation area is a unit of land that gets water from an irrigation network. One of the Krueng Aceh irrigation dams built to irrigate the Krueng Aceh irrigation area is divided into 2 parts, namely the right irrigation area, to irrigate an area of 7,194 ha, consisting of 6,385 ha located on the right bank of Krueng Aceh and 809 ha located on the left hand side Krueng Aceh. While the left irrigation area, to irrigate an area of 256 ha. The research location is in the Secondary Channel Blang Bintang BBB.4 - BBB.5 Krueng Aceh Irrigation Area Aceh Besar District. Based on the analysis that has been done, the maximum evapotranspiration needs value is occurred in August which is 2.98 mm / day, with an average evapotranspiration requirement of 2.63 mm / day. The maximum value of plant consumptive use needs occurred in April, which was 8.44 mm / day. The maximum effective rainfall value for rice occurs in December in the first half month (December-1), which is 1.32 mm / day. The maximum water requirement in paddy fields is found in April the second half of the month (April-2) which is 8.02 mm / day, with the need for water at the gates which is 1.43 l / sec / ha. The level of effectiveness of Blang Bintang secondary channel on BBB.4 - BBB.5 channels is 80.58% (0.81).
The Impact of Rice Husk Ash Waste Addition towards Landfill Stability Meliyana Meliyana; Armia Armia; Muhammad Zardi; Cut Rahmawati
Jurnal Teknik Sipil Unaya Vol 8, No 1 (2022): Januari 2022
Publisher : Center for Research and Community Service (LPPM) University of Abulyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30601/jtsu.v8i1.2524

Abstract

Soil stability is an attempt of improvement carried out to increase soil carrying capacity in order to fulfill the needs of construction. The improvement method used in this study is mixing rice husk ash (RHA) with a certain percentage of clay soil. The tests carried out in this study include soil physical properties, compaction and CBR testing. Based on CBR testing, the results obtained were 11.65% on the variation of 0% RHA, 5% for RHA at 20.39%, 10% for RHA at 10.92% and for RHA 15% at 3.56%. The highest increase in CBR value occurred at the addition of RHA 5% which was 74.96% compared to the original soil of CBR. Based on the test results, it can be seen that the addition of waste rice husk ash with a level of 5% which is most effectively used in an effort to increase the landfill carrying capacity so that it can be functioned as a material for landfill stabilizer for subgrade roads
Desain Ulang Balok dan Kolom Komposit Syafridal Is; Muhammad Zardi; Nanda Mahathir
Jurnal Teknik Sipil Unaya Vol 5, No 2 (2019): Juli 2019
Publisher : Center for Research and Community Service (LPPM) University of Abulyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30601/jtsu.v5i2.286

Abstract

The aim of this study is to redesign the beams and columns of reinforced concrete into a composite structure of Women's Empowerment and Child Protection Agency to derive a comparison of strength and efficiency between concrete-steel composite structures and reinforced concrete structures without changing the layout of columns and beams in the initial planning. LRFD (Load Resistance Factor Design) method and SAP2000 ver.14 as a tool were used in this study. The design was based on Indonesian Standard Regulation. The concrete strength (f’c) and steel strength ( were25 MPa and 250 MPa, respectively. In this study, steel profile BJ 37of WF (400 x 400 x 21 x 21) mm was used for beam and WF (400 x 400x 30 x 50) mm with concrete cross section (500 x 500) mm for column. The results of redesign composite structure for three-story building with the designed steel profile is fulfilled the strength requirements. The obtained maximum moment of beam and column are 36789,36 kg.cm and 43942,2 kg.cm, respectively. The used of composite material is 76,925% more expensive than reinforced concrete material.