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All Journal INTEGRITAS : Jurnal Pengabdian Sultra Civil Engineering Journal (SCiEJ)

Lakawa, Irwan

Unknown Affiliation

Author-ID : 7662136

Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Law, Crime, Criminology & Criminal Justice Social Sciences Transportation

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Pengaruh Cangkang Kerang Laut Terhadap Kuat Tekan Beton Rahmawati, Neti; Lakawa, Irwan; Sulaiman, Sulaiman
Sultra Civil Engineering Journal Vol 2 No 1 (2021): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Concrete is one of the most widely used building materials today in terms of physical construction. Concrete is made from a mixture of fine, coarse aggregate, cement, and water with a certain ratio, as well as materials that are usually added to the concrete mixture during or during mixing, to changing the properties of concrete to make it more suitable in certain jobs and more economical, can also be added with certain other mixed materials as needed if deemed necessary. Seashells can be used to mix concrete. This study aims to determine whether the addition of shells aggregate shells in a concrete mixture can affect the mechanical properties of concrete. The specimens used are in the form of cubes with a size of 15cm x 15 cm x 15 cm, consisting of additional concrete coarse and fine aggregate with shell substitution percentage of 0%, 15%, 20% with a total sample of 45, with the planned concrete quality of K225. The use of sea shells in increasing the compressive strength of concrete is better used as fine aggregate than coarse aggregate. The use of sea shells as a substitute for fine aggregates achieves maximum results at 20% composition.

Model Hubungan Karakteristik Arus Lalu Lintas Pada Ruas Jalan Abdullah Silondae Kota Kendari Florentinus, La Derita; Lakawa, Irwan; Sulaiman, Sulaiman
Sultra Civil Engineering Journal Vol 2 No 2 (2021): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Abdullah Silondae Road is a type of 4 lane 2 undivided road (4/2 UD) which is a pathway to urban activities, education, trade and. The research objective is to model the relationship of traffic characteristic parameters on the Abdullah Silondae Road section based on traffic studies, including studio volumes and vehicle speeds which are classified into three groups namely motorcycles (MC), light vehicles (LV) and heavy vehicles (HV). The variables used are traffic characteristics, namely volume, speed, and density. To determine the formulation of the characteristics relationship, three models are used, among others Greensield, Greenberg, and Underwood.From the results of the study concluded that the Greenshield model is the best model with the value of R ² = 0.99 with a mathematical equation the relationship of speed-density, volume-density, and volume-speed as follows: S = 41,3 -0,15.D, V = 41,3.D-0,15.D², V = 273 . S – 6,6.S².

Kajian Transportasi Laut pada Era New Normal Di Kabupaten Bombana Ruhimat, Iman; Lakawa, Irwan; Sufrianto, Sufrianto
Sultra Civil Engineering Journal Vol 2 No 2 (2021): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

This study aims to investigate sea transportation in the new normal era in Bombana Regency, especially at Kasipute Port. This study includes the number of ships operated, the number of passengers departed and arrived at Kasipute Port, and analyzing the service performance of the Kasipute Port before and during the new normal era. The research method was carried out by collecting secondary data as data recapitulation of ships operated and the volume of passengers departed and arrived at the Kasipute Port at the Office of the Bombana Regency Harbormaster then primary data was get by interviewed passengers (respondents) and filling out questionnaires. It carried service quality analysis using Importance Performance Analysis (IPA). The results showed that during the new normal era, the number of ships operated experienced the highest decline reaching 58% in May 2020. Meanwhile, the largest percentage decrease of passengers during the new normal era was 85% for departed passengers and 77% for passengers arrived at Kasipute port in May 2020. The decline in the number of ships and passengers that occurred during the new normal era was partly due to the PSBB imposed by the Bombana Regency Government since April 2020, so it limited the movement of people using the marine transportation mode. Based on the results of the service quality analysis, the priority factors in improving service performance before the new normal era at Kasipute Port are the comfort of the ship (E1), cleanliness of the ship (C2), and the time of departure of the ship (D1), while the priority factors in improving service performance during the new normal era is the provision of masks by the port (E3), ship cleanliness (C2), ship departure time (D1) and ship comfort (E1).

Korelasi Nilai CBR Dengan kepadatan Lapangan Subbase Course Hayadi, Hayadi; Lakawa, Irwan; Sulaiman, Sulaiman
Sultra Civil Engineering Journal Vol 2 No 2 (2021): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

The durability of the road flexural pavement structure is largely determined by the performance of each layer. One of these factors is the strength and resilience of the subbase. Compaction in accordance with applicable standards will produce roads with good quality so that the road life is longer and there is less damage. The purpose of this study is to analyze the carrying capacity using CBR, the value of the field density with the sand cone test and the correlation of the CBR value and the Sand cone value of the B grade foundation layer on the Tugu Munajah network. The research method used is laboratory and field testing combined with a descriptive statistic approach. The results of the study indicate that the carrying capacity using the CBR amounted to 55.02% <60%, the density value field with sand cone test of 72.50% <90%. Correlation of CBR and Sand cone value at the base layer (sub base course) is very strong at 0.998.

Sistem Informasi Geografis Kerusakan Jalan Berbasis Web Adhar, Adhar; Lakawa, Irwan; Sufrianto, Sufrianto
Sultra Civil Engineering Journal Vol 2 No 2 (2021): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

According to the North Buton Regency Public Works and Spatial Planning Agency in the Central Statistics Agency (2020), in the North Buton Regency area there are still many roads that are slightly damaged or heavily damaged, the road damage is a very complex problem. The losses and impacts suffered are enormous for the road users, while mapping and research, especially on road conditions, are still lacking attention. Recognizing the need for information on road damage that can display the condition of provincial roads in North Buton Regency, the information system that will be displayed in the form of a digital map based on Geographical Information System (GIS) is more effective in providing visualization of road damage data, road conditions and reports of road damage, especially on provincial roads in North Buton Regency. The research objectives are: (1) To analyze the level of damage to provincial roads in North Buton Regency. (2) Knowing the WEB-based Geographical Information System Damage to Provincial Roads in North Buton Regency. The results of the analysis and discussion carried out resulted in the level of damage to the Provincial Roads in North Buton Regency using the PCI (method Pavement Condition Index)along 12 km which is divided per 300 meters into 40 segments. With the average value of 65 in the condition(Good)and then with a geographic information system (GIS) based WEB, data showed damage to the weathering of the surface as much as 31%, the hole as much as 39%, Cracks extends as much as 4%, Weathering granules off as much as 13% , Block crack by 2%, Bleeding as much as 9% and Amblast by 2%.

Analisis Kinerja Alat Berat Pada Proyek Normalisasi dan Perkuatan Tebing Sungai Jaya, Ansar; Lakawa, Irwan; Hawa, Sitti; Bona, Muh Samtun
Sultra Civil Engineering Journal Vol 3 No 1 (2022): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

The purpose of this study was to analyze the performance of heavy equipment and the duration of time required to complete the Windo River Cliff Normalization and Reinforcement Project, Pamandati Village, Laeya District, South Konawe Regency. The results showed that the excavator's performance in excavation work (mechanical) was 38.68 m3/hour, dump truck 2.99 m3/hour. As for the embankment work imported from outside, the performance of the excavator is 98.53 m3/hour and the dump truck is 3.05 m3/hour. Where the duration of time required to complete the excavation work (mechanical) with an excavator is 12 days and for embankment work imported from outside is 2 days..

Faktor-Faktor yang Mempengaruhi Contract Change Order pada Pekerjaan Rehabilitasi Jalan Mataiwoi-Abuki Rajanun, Rajanun; Lakawa, Irwan; Hawa, Sitti; Haryono, Haryono; Sufrianto, Sufrianto
Sultra Civil Engineering Journal Vol 3 No 1 (2022): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

The research was conducted using descriptive statistical methods, namely by analyzing data and questionnaires to determine the mean and then calculating the value of the Relative Interest Index (IKR). This analytical method will be very useful for identifying the rank of respondents and giving priority to study variables. The results showed that the factors causing CCO were the effect of cost (0.362) with a t count of 0.869. The dominant factors causing Contract Change Order (CCO) that affect cost and time are the contractor factor, then the influence of cost, natural conditions, planning & design, time, and the lowest one is the owner's influence.

Analisis Persepsi Pelayanan Kapal Malam Rute Kendari - Raha Provinsi Sulawesi Tenggara Saputra, Muhammad Roni Anwar; Lakawa, Irwan; Huiyanto, Hujiyanto; Jassin, Andi Makkawaru; Sufrianto, Sufrianto
Sultra Civil Engineering Journal Vol 3 No 1 (2022): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

The characteristics of night ship passengers are dominated by men, the average age of passengers is 20-25 years with a percentage value of 64%, the most travel destinations are Muna Island and the dominant service users have student jobs, while the analysis results are seen in the value of 0.66- 0.8, this means that the overall CSI score for performance appraisal is 1.96 with the criteria for the value of each indicator, service users are very satisfied with the performance of night ship services on the Kendari - Raha route, Southeast Sulawesi Province. The perception of service users towards night boat services on the Kendari - Raha route as a whole with an average value of 3.5 for performance and 3.1 for satisfaction. This can be seen in the quadrant A diagram in the Cartesian diagram, which means that the service elements are very good and provided very well.

Faktor-Faktor Yang Mempengaruhi Mutu Pelaksanaan Proyek Peningkatan Jalan Tedubara-Pising Kabupaten Bombana Ali, Rahmat; Lakawa, Irwan; Hawa, Sitti; Sufrianto, Sufrianto
Sultra Civil Engineering Journal Vol 3 No 1 (2022): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

This study aims to analyze the factors that influence the quality of the implementation of improving the Tedubara-Pising street in Bombana Regency. This study uses quantitative data analysis techniques with a sample size of 30 respondents. The results showed that the factors affecting the quality of the Tedubara Pising road improvement in Bombana Regency were financial indicators (X3) 21.97%, followed by Human Resources indicators (X1) 20.14%, location indicators (X5) 19.68 %, material indicator (X2) 19.22%, and the lowest is equipment indicator (X4) 18.99%. Factors related to the quality of road improvement, namely the human resources variable with a value of 0.855 and material with a value of 0.853. This shows a very strong relationship

Analisis Pengembangan Sistem Distribusi Pada Sumber Mata Air Desa Lamendora Kecamatan Kapoiala Kabupaten Konawe Abdillah, Muh. Fiqram; Lakawa, Irwan; Sulaiman, Sulaiman; Ilham, Vickky Anggara
Sultra Civil Engineering Journal Vol 3 No 1 (2022): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Water is an important component for the life of living things on earth and cannot be separated from the need for water. Water is the main requirement in the process of life on earth so that there is no life if there is no water on earth. Water is an element that is difficult to separate from human life. The importance of the role of water for the life of creatures on the earth's surface, it is necessary to have a water source that can provide water both in terms of quantity and quality. The purpose of this study is to analyze the water demand in Lamendora Village for the next ten years and analyze the water discharge and installation capacity in the process of developing a water distribution system. The water demand for the next 10 years projection for each facility in Lamendora village is for the domestic sector of 0,000607 m/s, for the non-domestic sector the entire facility is 0.0005228 m³/s. The average flow rate of the Lamendora river is 10,988 m³/s, after that the roughness coefficient calculation according to hazzen-wiliams results in 24,189m from brocaptering to the reservoir. As for the flow velocity of 33.21 m3/second. so that the river flow of the Lamendora village can still meet the water needs for the next 10 years.

Co-Authors Abdillah, Muh. Fiqram ADHAR, ADHAR Ahmad Ahmad Ali, Rahmat Andi Bahrun Arsyad, Febriansyah Bachmid, Sitti Nurkhalisah Bana, Sahindomi Bhakti Aslon, Muh. Wonua Bona, Muh Samtun Didi Saputra, Eka Fitrawansyah, Dian Florentinus, La Derita Hado, Hado Hakiman, Hakiman Harjunan, Harjunan Haryono Haryono Hasrudin, La Ode Hawa, Sitti Hayadi, Hayadi Hidayat, Ahid Huiyanto, Hujiyanto Hujiyanto, Hujiyanto Idati, La Ode Munawal Akbar Ilham, Vickky Anggara Jassin, Andi Makkawaru Jaya, Ansar Juantoro, Eko Efendi La Ode Muhamad Magribi, La Ode Muhamad M. Basri . Magribi, La Ode Muh Menudi, La Muhammad Muhsar, Muhammad Pratiwi, Nadya Ayu Rachmat, La Ode Musa Rahman, Irwanto Rahmat, La Ode Musa Rahmawati, Neti Rajanun, Rajanun Raksi, Sunandar Rasyid, La Ode Ahmad Razmi Noris, Muhamad Ruhimat, Iman Saputra, Arsum Rheza Djaya Saputra, Muhammad Roni Anwar Satyadharma, Maudhy Sudardjat, Catrin Sufrianto, Sufrianto Sulaiman Sulaiman Sumariyani, Sumariyani Sutrisno, Muhammad Syamsuddin Syamsuddin Taufik, Yani Zulfikar Zulfikar

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