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Qua Teknika
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Jurnal Qua Teknika
Published by Universitas Islam Balitar Blitar
ISSN : 20882424     EISSN : 25273892     DOI : https://doi.org/10.35457/quateknika
Core Subject : Engineering,
Engineering
Focus dan Scope: Hasil penelitian teknik dan aplikasinya tentang: 1. Teknik Elektro 2. Teknik Sipil 3. Kajian dan aplikasi teori 4. Pendidikan dan pembelajaran di bidang teknik
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Articles 10 Documents
 1 
Search results for , issue "Vol 13 No 2 (2023): September 2023" : 10 Documents clear
PENGARUH RASIO L/D ANTARA LAPISAN MORTAR GEOPOLIMER BERBAHAN DASAR FLY ASH TERHADAP KUAT TEKAN BETON DENGAN SEAWATER CURING Nastiti, Syahidah Fani
Jurnal Qua Teknika Vol 13 No 2 (2023): September 2023
Publisher : Universitas Islam Balitar Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/quateknika.v13i2.2840

Abstract

ABSTRAK The performance and durability of concrete in construction is essential to maintain the sustainability and protection of the material. Particularly in construction in marine environments, the attack of aggressive chemical compounds can affect concrete and accelerate deterioration. This research aims to improve the performance and durability of concrete in construction in marine environments by using additional protection methods such as Surface Applied Protection. One of the materials used is geopolymer mortar that uses fly ash as a base material. This study shows that geopolymer mortar contributes positively to the compressive strength and durability of concrete. The thickness of the geopolymer mortar layer affected the mechanical properties of the concrete, and 4 cm thick gave the highest compressive strength results. The addition of geopolymer mortar needs to be adjusted to the compressive strength of the concrete and pay attention to the layer thickness for optimal results. Kata kunci: repair material, marine environment, L/D ratio, geopolymer mortar, compressive strength
PEMILIHAN SUPPLIER MINYAK JELANTAH BAHAN BAKU BIOSOLAR DENGAN METODE ELECTRE Anatasya, Dita Riyantiin; Andriyanto, Teguh; Firliana, Rina; Sucipto, Sucipto
Jurnal Qua Teknika Vol 13 No 2 (2023): September 2023
Publisher : Universitas Islam Balitar Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/quateknika.v13i2.2977

Abstract

CV. Fred Jelantah is a CV engaged in the industrial sector, namely suppliers of used cooking oil as raw material for biodiesel. In the process of meeting the needs for supply of goods, CV.Fred Jelantah requires more than one supplier. So far, CV. Fred Jelantah still uses a subjective process in considering supplier selection. This causes inaccuracies in the supply of goods such as oil quality and timeliness of supply. The research objective of modeling a decision support system using the ELECTRE method is to be able to provide the best supplier references accurately and subjectively unconventionally for CV. Fred Jelantah. In calculating the ELECTRE method, 4 alternatives and 5 criteria are determined. Based on the results of the research conducted, the highest ranking results were obtained, namely the Jelantah Kelud and Kuli Jelantah alternatives with a total value of 1.
SISTEM PENDUKUNG KEPUTUSAN PENERIMA PKH MENGGUNAKAN METODE SAW Sektio Ririn; Firliana, Rina; Andriyanto, Teguh; Sucipto, Sucipto
Jurnal Qua Teknika Vol 13 No 2 (2023): September 2023
Publisher : Universitas Islam Balitar Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/quateknika.v13i2.2989

Abstract

The Family Hope Program is a conditional social assistance program for poor and vulnerable families and/or individuals. The current problem is that the process of determining PKH beneficiaries by PKH administrators and assistants in Bendolo Village is still done manually and has not been supported by an optimal system. Decision Support System In determining beneficiaries, there are 6 criteria used. Problems often occur in the selection of beneficiaries, one of which is the long process of determining beneficiaries and the emergence of community prejudice regarding beneficiaries of the program. The result of this study is the formation of a decision support system to determine eligible and ineligible PKH beneficiary candidates using the SAW method.
The IMPLEMENTASI SISTEM BOOST CONVERTER DAN PENGUKURAN PADA ALAT PENGUSIR HAMA BERBASIS ARDUINO DAN LABVIEW Iman, Muhammad Rifci Imanullah
Jurnal Qua Teknika Vol 13 No 2 (2023): September 2023
Publisher : Universitas Islam Balitar Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/quateknika.v13i2.3009

Abstract

In this study, the authors looked at the problem of pest repellent devices that produce ultrasonic wave sounds above 20Khz that can only be heard by bats, whales, and rats. batteries that are charged by solar panels. However, the battery voltage will decrease as the use of power from the battery decreases due to usage. In this research, a boost converter circuit was chosen to increase the battery so that it stabilizes at 13V. The boost converter control uses Arduino with Pulse Width Modulation (PWM) output to trigger MOSFET. The results of measuring the value and graph of voltage and current data will be displayed on LabView software in order to facilitate data reading.
The ALAT PREDIKSI CURAH HUJAN DENGAN MENGGUNAKAN WEATHER SENSOR SEBAGAI PENANGGULANGAN TERHADAP POTENSI BENCANA BANJIR Zuhri, Muhammad Zuhri
Jurnal Qua Teknika Vol 13 No 2 (2023): September 2023
Publisher : Universitas Islam Balitar Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/quateknika.v13i2.3010

Abstract

Natural disaster is a disaster that cannot be known when it will happen, especially flood disasters that often occur when entering the rainy season. When the intensity of rainfall is high, areas that are subscribed to flooding can quickly be submerged by water. Therefore, a tool is needed that can estimate flood time connected to the Internet of Things, with this tool it is hoped that it can help residents who are in flood-prone areas to better prepare themselves when rainfall has exceeded the maximum limit.
Prefix SISTEM PENGISIAN AIR PADA TANKI PEMBUATAN ROTI DENGAN METODE FUZZY LOGIC MENGGUNAKAN ARDUINO Ghaleb, Mohammad Ghaleb Ahda
Jurnal Qua Teknika Vol 13 No 2 (2023): September 2023
Publisher : Universitas Islam Balitar Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/quateknika.v12i2.3011

Abstract

The filling of water as a composition in making bread dough manually often has a very significant error in the amount of water volume. Therefore, filling water as a composition of bread dough automatically reduces the excess amount of water volume during bread dough making. With automatic water filling in bread dough making, the volume of water is within the tolerable amount so that the dough is quite good and makes the time efficiency of making bread dough compared to filling water as bread dough manually.
EVALUASI KINERJA STRUKTUR BANGUNGAN BERTINGKAT 4 LANTAI KAMPUS AKADEMI KOMUNITAS NEGERI (AKN) PUTRA SANG FAJAR BLITAR DENGAN METODE ANALISIS RESPON SPEKTRUM MENGGUNAKAN APLIKASI STAAD PRO nurjanah; Rozaqi, bahar
Jurnal Qua Teknika Vol 13 No 2 (2023): September 2023
Publisher : Universitas Islam Balitar Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/quateknika.v13i2.3036

Abstract

Campus Akademi Komunitas Negeri (AKN) Putra Sang Fajar Blitar located on sub-district Sananwetan, Blitar City, this integrated lecture building stands on the land of the former Mardiwaluyo Hospital. The campus building has a total of 4 floors that function as an educational building. The calculation method uses the STAAD Pro progam to determine the results of the analysis of the performance of the building’s structure starting from beams, columns, sloof to foundations. after the calculation results in a floor slab with a thickness of 12 cm using a 2-way plate system, with K-300 (Fc’) = 24,9 Mpa and steel quality (fy) = 400 Mpa. While the beam is 60 cm x 40 cm, 50 cm x 30 cm, 40 cm x 30 cm, 30 cm x 20 cm with quality concrete K-300 (Fc’) = 24,9. Column size 40 cm x 40 cm and sloof size 60 cm x 30 cm dan 50 cm x 25 cm with quality concrete K-300 (Fc’) = 24,9 lower structure using footplat foundation. From the dimensions above, it is estimated that this reanalysis calculation is more efficient and can reduce project costs.
PENGARUH SUBSTITUSI CANGKANG KERANG DARI ENDE NTT TERHADAP KUAT TEKAN DANKUAT LENTUR BETON fc’= 19,3 MPa Ningrum, Diana; Setya, Handika; Seda, Victoria
Jurnal Qua Teknika Vol 13 No 2 (2023): September 2023
Publisher : Universitas Islam Balitar Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/quateknika.v13i2.3155

Abstract

The use of concrete for basic construction materials today is indeed increasing rapidly along with the development of construction construction.Only a concrete quality of 19.3 MPa (fc '= 25 MPa) was considered in this study. Since cement, aggregates, sand and water are extracted from nature, they must be limited. So in this study using additional material clam shells. One of them is shells, shellfish waste or shells are usually only used as decorations or toys so that there is still a lot of waste wasted. Inside the shell, the clam contains pozzolan chemical compounds, namely lime (CaO), aluminum oxide and silica. It can be expected to improve the quality of concrete. As a result of compressive strength test by changing the clamshell to 0%, 10%, 20%, 30%, 40% and 50%, the average compressive strength value of 0% (ordinary concrete) was 15.81 MPa. The addition of a 10% clam shell results in an average compressive strength value of 20.58 MPa. For the addition of clam shells by 20% obtained an average compressive strength value of 23.37 MPa. 30% yields an average compressive strength of 40.31 Mpa, to 40% of 29.12 Mpa. As for the addition of 50% clam shells, the average compressive strength value is 24.79 Mpa. Thus it can be concluded that the addition of clam shells 30% compressive strength value is higher than the compressive strength value of concrete with the addition of clam shells 0%, 10%, 20%, 40%, and 50%The flexural strength test value in terms of the maximum average moment on the beam for each variation of the test specimen is maximum moment value 75.02 kN.m for 0% variation, maximum moment value 62.52 kN.m for 10% variation, maximum moment value 68.77 kN.m for 20% variation, maximum moment value for 30% variation 62.52 kN.m, 40% variation at maximum moment value of 62.52 kN.m. Therefore, the percentage of specimens that can withstand the highest load in the flexural strength test is 0% and the maximum moment value is 75.02 kN.m.
KAJIAN ENERGI SPESIFIK PADA BENDUNG BERTANGGA DENGAN VARIASI KEMIRINGAN HULU PADA SALURAN PERSEGI Suhudi, Suhudi; Maneek, Benyamin; Pamela Dinar Rahma
Jurnal Qua Teknika Vol 13 No 2 (2023): September 2023
Publisher : Universitas Islam Balitar Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/quateknika.v13i2.3156

Abstract

Open channel flow is an open channel flow that is under the influence of the earth's gravity, the method used is the primary method that is measured, namely the water level, the speed of the froude number The purpose of the study is to determine the effect of water level, speed, froude number What is the specific energy in the presence of variations in the slope of the weir and know the effect of specific energy that occurs in each slope of the weir with variations in discharge, The results are as follows: Subcritical froude number flow type has no effect, the specific energy that occurs is: Q1 5.7435m, Q2 6.0225m and at Q3 6.3832m.
ALAT PROYEK MIKRO KONTROL PENGHAPUS PAPAN TULIS OTOMATIS MENGGUNAKAN REMOTE BERBASIS ARDUINO Ragil Pamungkas, Sukma; Mukhlison, S.T., M.T; Sri Widoretno, S.T., M.T
Jurnal Qua Teknika Vol 13 No 2 (2023): September 2023
Publisher : Universitas Islam Balitar Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/quateknika.v13i2.3161

Abstract

The development of automation technology on blackboard erasers can increase the level of hygiene and health, because with an automation system the activity of erasing the blackboard can be carried out automatically without inhaling marker ink which has an impact on health and does not dirty hands. The purpose and working mechanism of making an automatic blackboard eraser using a remote and Arduino. The method of designing an automatic whiteboard eraser is made using an arduino uno as a microcontroller and an infrared remote that controls a stepper motor to drive the eraser. The assembly of the blackboard eraser mechanism is done by preparing a blackboard prototype that has been mounted on an iron frame. Then, install the top rail and bottom rail. Followed by installing the upper and lower wheels on the upper and lower rails that have been glued to the eraser clamp. The results of the design of an automatic whiteboard eraser based on Arduino Uno, can facilitate teachers and students in the learning process. The conclusion of this design is that the automatic whiteboard eraser can work according to the program that has been entered into the arduino uno and is controlled by an infrared remote and the whiteboard eraser working mechanism functions properly to erase the marker ink on the blackboard with a power of 26.67 watts.

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