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All Journal Media Ilmiah Teknik Sipil INTEGRITAS : Jurnal Pengabdian Sultra Civil Engineering Journal (SCiEJ) Sultra Jurnal Pengabdian Masyarakat

Lakawa, Irwan

Unknown Affiliation

Author-ID : 7662136

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

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Pengaruh Penambahan Admixture Terhadap Kuat Tekan Beton Dari Berbagai Merek Semen Fitrawansyah, Dian; Lakawa, Irwan; Sulaiman, Sulaiman
Sultra Civil Engineering Journal (SCiEJ) Vol 1 No 2 (2020): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Tonasa cement, Bosowa cement, and Tiga Roda cement have diffenrence characteristic from procedure to produce and composition of ingredients, the difference are probably reach the diffenrence respond or effected from three brands are mixed from admixture to be a mix concrete. One of the commonly admixture and easy to find is Damdex Brand that can increase the strengthness of the concrete. The aimed of this investigation to analyse the effect of admixture (Damdex) variation toward concrete compressive strength by comparison the cement brands.The methodology of this investigation is experiment method or material test in laboratory. The concrete compressive strength will calculated during 28 days age, after giving an admixture (0%,1%, 1,5%,2%, 2,5% dan 3%) with different brands cement variation,but composition of Concrete such Agregat and Water are same from each treatment. The sample from each treatment totally 3 tested samples. The result of this investigation, Tonasa cement is increase with concrete compressive strength from highest of admixture (Damdex) from admixture level is 2% which gain compressive strength 385,24 Kg/cm2 or increasing amount 23,52% from normal concrete compressive strength. Bosowa brand is increase with concrete compressive strength from the highest admixture ( Damdex) the level is 2.5 % with compressive strength gain is 338,00 Kg/cm2 or increase amount 10,15% from Normal concrete compressive strength.Compressive strength of Tiga Roda brand also gain increase from admixture with highest level is 3% which 354,35 Kg/cm2 compressive or increase amount 18,60% from normal concrete compressive strength

Kajian Infrastruktur Transportasi Darat Dalam Pengembangan Wilayah Kecamatan Tongauna Kabupaten Konawe Juantoro, Eko Efendi; Magribi, La Ode Muhamad; Lakawa, Irwan; Sufrianto, Sufrianto
Sultra Civil Engineering Journal (SCiEJ) Vol 1 No 2 (2020): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

The development of rural areas from the agricultural base sector in the field of food through land transportation infrastructure is the main focus of this research. The location of the object of research was Tongauna District, Konawe Regency, Southeast Sulawesi Province. which is the background for site selection because the majority of the people in Tongauna are farmers and the Tongauna sub-district is the district with the largest production of lowland rice commodity in Southeast Sulawesi province which can be an agricultural base sector. Land transportation has become a very important media that supports the mobility, connectivity and accessibility of agriculture so as to increase the productivity of leading sectors of agriculture that have an impact on the development of the area of Tongauna District.

Analisis Banjir Faktor Penyebab Dan Prioritas Penanganan Sungai Anduonuhu Idati, La Ode Munawal Akbar; Magribi, La Ode Muhamad; Lakawa, Irwan
Sultra Civil Engineering Journal (SCiEJ) Vol 1 No 2 (2020): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Anduonuhu Village is one of the areas in Kendari City that has been affected by flooding in the last 10 years. Data of fload events occurred in 2013 and 2017. Based on the Data of the Kendari City Enfironmental Status Report in 2010, the distribution of potential areans prone to flooding in the city of Kendari, Anduonuhu sub-district was ranked 2 (two) with an area of 359.817 ha. The purpose of this sudy is to analyze extreme rainfall over the past 10 years, to analyze the factors that cause flooding and the priority of handling the anduonuhu river. In analyzing, the autors collect data by conducting field surveys and collecting data on gydrology, tophography and land use at the study site. The results of data analysis show that extreme rainfall in the last 10 years at the study site occurred in 2013 amounted to 191.6 mm. factors causing flooding at the study site were caused by extreme rainfall inundating the Anduonuhu watershed and land use change. The priority handling is done by modeling scenarios with normalization and river embankments.

Analisis Kinerja Simpang Bersinyal Pada Simpang PLN Di Wua-Wua Kota Kendari Saputra, Arsum Rheza Djaya; Lakawa, Irwan; Rachmat, La Ode Musa
Sultra Civil Engineering Journal (SCiEJ) Vol 1 No 2 (2020): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

This study aims to analyze the degree of saturation of the signaled intersection at the intersection of PLN Wua-Wua Kendari, the long queue condition based on the Manual Capacity Road Indonesia (MKJI, 1997) method with direct measurement in the field, traffic delay condition, and predict the performance of PLN intersection Wua- Wua at 5 and 10 years to come. Data analysis techniques use mathematical equations by using Manual Capacity Method of Indonesia (MKJI, 1997) with the help of Microsoft Excel. Traffic volume surveys and queue lengths are carried out together for 15 minutes each time for 12 hours of measurement. The long queuing condition based on MKJI 1997 method on the east approaches 42,62 meters, west approach 79,5 meter, North approach 47,1 meter and Southern approach 52,4 meter with average queue length 55, 4 meters. While based on the calculation directly in the field obtained value on the approach of the East of 33.51 meters, Western approach of 39.23 meters, Northern approach of 41.53 meters, South approach of 58.05 meters, with an average queue length of 43, 08 meters. The traffic delay on the Eastern approach was 56.2 seconds / smp, Western approach of 84.1 seconds / smp, North approach of 64.1 seconds / smp, and Southern approach of 69.0 seconds / smp. Predicted traffic volume for the next 5 years for the Eastern approach of the DS value of 0.94 with the LOS E, the western approach to the DS value of 1.29 with the LOS F, the North approaches the DS value of 1.20 with the LOS F, the Southern approach of the DS value of 1.27 with LOS F, while for the next 10 years on the Eastern approach the value of DS is 1.57 with LOS F, Western approach of DS value of 2.25 with LOS F, North approach of DS value of 2.00 with LOS F, South DS value of 2.12 with LOS F.

Evaluasi Kinerja Layanan dan Tingkat Kepuasan Pelanggan Angkutan Penyeberangan Amolengo-Pure Provinsi Sulawesi Tenggara Rasyid, La Ode Ahmad; Lakawa, Irwan; Rahmat, La Ode Musa
Sultra Civil Engineering Journal (SCiEJ) Vol 2 No 1 (2021): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Indonesia is a large country that is widespread with it’s islands and is a country traversed by the Equator, so sea transportation has an important role to play in connecting one area to another, considering that Indonesia has a very wide ocean. One of the means of sea transportation that is widely used by the community is the ferry. Ferry is a type of sea transportation that can be used as passenger and goods transportation using certain routes or routes. With the existence of the Ferry port, it can increase the acceleration of development in the area, especially Amolengo Village, Konawe Selatan Regency. The Amolengo ferry port is a port that serves the crossing of passengers and goods that connects the South Konawe mainland and its surroundings with Buton Island, where the destination port is Pure port. The quality of good service provided is one of the determining factors for the success of the company. The research method is arranged by interviewing respondents by answering the questions on the questionnaire. The analysis was performed using Importance Performance Analysis (IPA) and the Customer Satisfaction Index (CSI). The results of this study indicate that the consumer satisfaction index on the performance of the Amolengo - Pure Ferry Port, Southeast Sulawesi Province is 84.6% and is in the range 0.81 - 1.00 indicating that consumers are very satisfied with the service quality of the Amolengo - Pure Ferry Port, Southeast Sulawesi Province.

Pengaruh Cangkang Kerang Laut Terhadap Kuat Tekan Beton Rahmawati, Neti; Lakawa, Irwan; Sulaiman, Sulaiman
Sultra Civil Engineering Journal (SCiEJ) 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 (SCiEJ) 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 (SCiEJ) 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 (SCiEJ) 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 (SCiEJ) 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%.

Co-Authors Abdillah, Muh. Fiqram ADHAR, ADHAR Ahmad Ahmad Ahsan, Laode Muhammad Fahrizal 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 Harisman Harisman, Harisman Harjunan, Harjunan Haryono Haryono Hasrudin, La Ode Hawa, Sitti Hayadi, Hayadi Hendriyansa, Muh. Hidayat, Ahid Hujiyanto, Hujiyanto Idati, La Ode Munawal Akbar Ilham, Vickky Anggara Irvandi Cahyadi, I Made Jassin, Andi Makkawaru Jaya, Ansar Juantoro, Eko Efendi La Ode Muhamad Magribi, La Ode Muhamad M. Basri . Magribi, La Ode Muh Makkawaru, Andi Makmur, Muzammil Menudi, La Muammar Makmur, Muammar Muhammad Muhsar, Muhammad Nurmaida Nurmaida, Nurmaida Paembonan, Marhcel Yupi 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 Safitri, Sri Jayani Saputra, Arsum Rheza Djaya Saputra, Komang Agus Saputra, Muhammad Roni Anwar Satyadharma, Maudhy Setiawan, Andi Kukuh Sudardjat, Catrin Sufrianto, Sufrianto Sulaiman Sulaiman Sumariyani, Sumariyani Sutrisno, Muhammad Syamsuddin Syamsuddin Taufik, Yani

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