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Pengaruh Kebisingan Lalu Lintas Terhadap Ketergangguan Pegawai Kantor Bkd Provinsi Sulawesi Tenggara M Basri; Irwan Lakawa; Sulaiman sulaiman
Sultra Civil Engineering Journal Vol 1 No 1 (2020): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Noise is unwanted sound, which can impair the health and comfort of the environment, have a source and propagates through a medium. Provincial Civil Service Agency of Southeast Sulawesi’s Office is located at the intersection of Drs. H. Abdullah Silondae Street, Laute Street and Malik Raya street with dense vehicle traffic, which Drs. H. Abdulah Silondae Street is the route of public transportation to the downtown to UHO Campus. The purpose of this research is to analyze the noise level due to the activities of the traffic in the area of Provincial Civil Service Agency of Southeast Sulawesi’s Office, analyzing the annoyance perception employees due to the traffic noise and the characteristics of respondents, and analyze the influence of noise level against the employees annoyance level. Data analysis of obtained that the average noise level in the area of Provincial Civil Service Agency of Southeast Sulawesi’s Office has passed the quality standards of noise to the office area. The perception of employees due to interference noise is 44% of the respondents who stated not bothered by noise in the area, 24% of respondents who stated a bit distracted, 24% stated quite disturbed, and 8% declared disturbed. As for the noise have significant influence towards employees level of annoyance.

Korelasi Nilai CBR Dengan kepadatan Lapangan Subbase Course Studi Kasus: Ruas Jalan Tugu munajah Kabupaten Bombana Hayadi Hayadi; Irwan Lakawa; Sulaiman Sulaiman
Sultra Civil Engineering Journal Vol 1 No 2 (2020): 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.

Pengaruh Penambahan Admixture Terhadap Kuat Tekan Beton Dari Berbagai Merek Semen Dian Fitrawansyah; Irwan Lakawa; Sulaiman Sulaiman
Sultra Civil Engineering Journal 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

Pengaruh Kerusakan Jalan Terhadap Nilai Ekonomi Penanganan Konstruksi Jalan Suhardin Mangidi; Sunaryo Sunaryo; Sulaiman Sulaiman; Sufrianto Sufrianto
Sultra Civil Engineering Journal Vol 2 No 1 (2021): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

This study aims to analyze the value of the Pavement Condition Index (PCI), analyze the amount of the budget needed to deal with road damage, and analyze the value of the influence between the value of the PCI and the budget for road repair on the Gunung Jaya - Poli- Polia road section. The results of this study indicate that the pavement condition index (PCI) of Gunung Jaya - Poli-Polia Road is 52.5 in the medium category. The total budget required to deal with the damage to the Gunung Jaya - Polia-Polia road is Rp. 12,085,500,000.00. PCI value affects the budget plan of 21.5%.

Penggunaan Limbah Nikel Sebagai Material Subtitusi Agregat Kasar Pada Beton K.250 Muhammad Muhsar; Abdul Kadir; Sulaiman Sulaiman
Sultra Civil Engineering Journal Vol 2 No 1 (2021): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

The purpose of this study was to Analyze the characteristics of the aggregates used in concrete mixtures and analyze how much increase in compressive strength of concrete with a variation of nickel slag substitution 0%, 5%, 15%, 25% compared with normal concrete. The characteristics of the material examined are water content, sludge content, specific gravity and absorption, volume weight, abrasion with los angeles machines, and filter analysis. While the large increase in compressive strength of concrete can be tested at the age of 7 days, 14 days, 28 days and 35 days. From the results of the analysis of the characteristics of nickel slag waste in concrete mixes meet the test standards in concrete mixtures, with a moisture content of 0.86%, sludge content of 0.44%, specific gravity of 2.94 gr / cm3, volume weight of 1.76 gr / cm3, abrasion 36.07%. And a large increase in compressive strength of concrete with a variation of nickel slag substitution of 0%, 5%, 15%, 25% compared to normal concrete is increasing. The highest percentage increase in concrete compressive strength is found in concrete compressive strength between a variation of 15% with a variation of 25% at 14 days concrete age, with a percentage increase in value of 13.13%.

Pengaruh Cangkang Kerang Laut Terhadap Kuat Tekan Beton Neti Rahmawati; Irwan Lakawa; 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 La Derita Florentinus; Irwan Lakawa; 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.

Korelasi Nilai CBR Dengan kepadatan Lapangan Subbase Course Hayadi Hayadi; Irwan Lakawa; 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.

Analisis Pengembangan Sistem Distribusi Pada Sumber Mata Air Desa Lamendora Kecamatan Kapoiala Kabupaten Konawe Muh. Fiqram Abdillah; Irwan Lakawa; Sulaiman Sulaiman; Vickky Anggara Ilham
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.

Rekayasa Bahan Pada Pekerjaan Pengaman Pantai Sunandar Raksi; Irwan Lakawa; Sulaiman Sulaiman; Catrin Sudardjat; Sufrianto Sufrianto
Sultra Civil Engineering Journal Vol 3 No 1 (2022): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Material Engineering is used to find alternatives or ideas that aim to produce better / lower costs than the previously planned price with functional limitations and quality of work. The purpose of this research is to analyze the cost efficiency and time effectiveness after analyzing the value engineering method. The analytical method used is material engineering on the type of activity in the coastal protection building which includes the casting and installation of buis concrete, mortar and cyclone concrete work with the substitution of mixed concrete materials in the work. The results showed that the cost efficiency after analyzing with the material engineering method was 14.15% or Rp. 274,670,356 of the Budget Plan as well as the time after analysis with the effectiveness of material engineering on the Polemo Beach Security Work, Poleang Timur District by 15% or 3 weeks ahead of the implementation schedule.

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