Mariat Subdistrict is one of the villages affected by the floods in Klasuluk Village, with an area of 0.7995 km2, and Klamalu Village, with an area of 1.0479 km2. This research uses experimental, descriptive, qualitative, and quantitative analysis methods. The results of the analysis and simulation, after being run at intervals of 10 years in the future, there are three flood points in the Klamalu village canal, where the most significant total flood volume is at JN64 146,687 m3/s, the smallest is at JN15 21,232 m3/s, and there are 56 flood points in the Klasuluk village canal, where the largest total flood volume was at JN91 1,863 m3/s and the smallest at JN9 and JN37 0.008 m3/s. The volume of wastewater discharge that enters the drainage is only 1%, so it has no effect. From the data on the dimensions of the retention pond, it is obtained that the wet cross-sectional area is about 145.05 m2, the wet perimeter of the retention pond is 101.69 meters, the hydraulic radius is 1.43 m, the flow velocity is 3.168 m/s, the guard height is 1.22 meters, the water discharge that comes out is 459.51 m3/second.
{"title":"Implementation of Retention Ponds in Flood Management in Sorong Regency – Southwest Papua","authors":"Azalia Fajri Yasin, Wahyono Hadi","doi":"10.30736/cvl.v8i1.979","DOIUrl":"https://doi.org/10.30736/cvl.v8i1.979","url":null,"abstract":"Mariat Subdistrict is one of the villages affected by the floods in Klasuluk Village, with an area of 0.7995 km2, and Klamalu Village, with an area of 1.0479 km2. This research uses experimental, descriptive, qualitative, and quantitative analysis methods. The results of the analysis and simulation, after being run at intervals of 10 years in the future, there are three flood points in the Klamalu village canal, where the most significant total flood volume is at JN64 146,687 m3/s, the smallest is at JN15 21,232 m3/s, and there are 56 flood points in the Klasuluk village canal, where the largest total flood volume was at JN91 1,863 m3/s and the smallest at JN9 and JN37 0.008 m3/s. The volume of wastewater discharge that enters the drainage is only 1%, so it has no effect. From the data on the dimensions of the retention pond, it is obtained that the wet cross-sectional area is about 145.05 m2, the wet perimeter of the retention pond is 101.69 meters, the hydraulic radius is 1.43 m, the flow velocity is 3.168 m/s, the guard height is 1.22 meters, the water discharge that comes out is 459.51 m3/second.","PeriodicalId":282199,"journal":{"name":"Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115110678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Porous asphalt is a type of pavement designed to increase the coefficient of friction on the pavement surface. The porous asphalt functions as drainage to drain water in the top layer vertically and horizontally. The method used in this research is an experimental method by making different tests in the laboratory. Stages of works include examining the 60/70 penetration bitumen, aggregate testing, mixing, and preparation of the sample with the variation of asphalt level of 5%, 5.5%, 6%, 6.5%, and 7% with 2x50 Marshall compaction. Volumetric measurement and Marshall testing to get optimum asphalt level. The next test is the cantabro test, permeability test, ITS test, and UCS test at optimum asphalt level. As the results of this study, it was obtained that the value of the optimum asphalt level was 6.15%, the value of Marshall characteristics, namely stability 636.32 kg (specification min. 500 kg), Flow 4.0 mm (specifications 2-6 mm), Marshall Quotient 159.15 kg/mm (specification max. 400 kg/mm), and Marshall VIM 19.828% (specification of 18-25%). At the optimum asphalt level the samples gave Cantabro value of 17.90% (specification max. 20%), vertical and horizontal permeability values of 0.145 and 0.152 cm/sec (specifications 0.1-0.5 cm/sec), ITS value of 158.88 kPa, and UCS value of 916.343 kPa.
{"title":"Study Characteristics of Porous Asphalt Using Aggregates from Karangasem with 60/70 Penetration Bitumen","authors":"I. G. A. A. Putra","doi":"10.30736/cvl.v7i2.923","DOIUrl":"https://doi.org/10.30736/cvl.v7i2.923","url":null,"abstract":"Porous asphalt is a type of pavement designed to increase the coefficient of friction on the pavement surface. The porous asphalt functions as drainage to drain water in the top layer vertically and horizontally. The method used in this research is an experimental method by making different tests in the laboratory. Stages of works include examining the 60/70 penetration bitumen, aggregate testing, mixing, and preparation of the sample with the variation of asphalt level of 5%, 5.5%, 6%, 6.5%, and 7% with 2x50 Marshall compaction. Volumetric measurement and Marshall testing to get optimum asphalt level. The next test is the cantabro test, permeability test, ITS test, and UCS test at optimum asphalt level. As the results of this study, it was obtained that the value of the optimum asphalt level was 6.15%, the value of Marshall characteristics, namely stability 636.32 kg (specification min. 500 kg), Flow 4.0 mm (specifications 2-6 mm), Marshall Quotient 159.15 kg/mm (specification max. 400 kg/mm), and Marshall VIM 19.828% (specification of 18-25%). At the optimum asphalt level the samples gave Cantabro value of 17.90% (specification max. 20%), vertical and horizontal permeability values of 0.145 and 0.152 cm/sec (specifications 0.1-0.5 cm/sec), ITS value of 158.88 kPa, and UCS value of 916.343 kPa.","PeriodicalId":282199,"journal":{"name":"Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan","volume":"181 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114175544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The existence of construction projects has been considered a major source of environmental problems worldwide. However, basically the construction industry activities can make a positive contribution, this can be achieved if the whole process is carried out by taking into account the principles of sustainable development.To achieve a sustainable construction project requires a method that is effective and acceptable to all parties. Based on these problems, this study examines the integration of risk analysts to achieve sustainable construction using the literature review method.The results of this study indicate that there are 5 variables that affect the achievement of sustainable construction, namely social, environmental, economic, disaster and technical. The 5 variables are fully integrated in 2 forms of relationship, namely reinforcing and balancing, where these variables can strengthen each other, weaken each other and also balance each other. So that these variables can be integrated to achieve sustainable construction, some previous research results state that this can be achieved by risk analysis
{"title":"Overview of Risk Analysis as a Reach of Sustainable Construction","authors":"N. N. Rodhi","doi":"10.30736/cvl.v7i2.907","DOIUrl":"https://doi.org/10.30736/cvl.v7i2.907","url":null,"abstract":"The existence of construction projects has been considered a major source of environmental problems worldwide. However, basically the construction industry activities can make a positive contribution, this can be achieved if the whole process is carried out by taking into account the principles of sustainable development.To achieve a sustainable construction project requires a method that is effective and acceptable to all parties. Based on these problems, this study examines the integration of risk analysts to achieve sustainable construction using the literature review method.The results of this study indicate that there are 5 variables that affect the achievement of sustainable construction, namely social, environmental, economic, disaster and technical. The 5 variables are fully integrated in 2 forms of relationship, namely reinforcing and balancing, where these variables can strengthen each other, weaken each other and also balance each other. So that these variables can be integrated to achieve sustainable construction, some previous research results state that this can be achieved by risk analysis","PeriodicalId":282199,"journal":{"name":"Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133437598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Annisa' Carina, H. Hasbi, Linda Kurnia Supraptiningsih, Ratna Fajarwati Meditama
In the current era of 4.0, the job market opportunities for construction services continue to develop. The Java Integrated Industrial and Ports Estate (JIIPE) construction project, which is located in an industrial area in Gresik, is an area development project that is targeted to be able to absorb a workforce of 500 thousand people. The workforce has a role in national productivity and community welfare. Therefore, the human resources of the workforce must be empowered in order to have the competence, skills, and quality optimally. The Construction Services Law Number 2 of 2017 Article 70 stipulates that every construction worker who works in the Construction sector is required to have a Work Competency Certificate. determined based on the certificate held, in addition, labor distribution and protection of workers are also not optimal, for the welfare of workers in construction projects. In this study using descriptive qualitative research . Data were obtained through interview, documentation, observation and questionnaire techniques, sampling using purposive sampling technique. Based on the results of the study, it was found that (1) JIIPE provides opportunities for local residents to become part of the world of work by looking at the appropriate competencies, (2) workers in the JIIPE area are given the opportunity to develop their soft skills. skills by participating in competency development training with output certificates of expertise or competency certificates in accordance with their fields. This is the JIIPE Manyar Gresik development project provide welfare for workers and their families.
{"title":"Protection of Labor in Realizing Labor Welfare in Construction Projects (JIIPE Manyar Gresik Construction Project Study)","authors":"Annisa' Carina, H. Hasbi, Linda Kurnia Supraptiningsih, Ratna Fajarwati Meditama","doi":"10.30736/cvl.v7i2.840","DOIUrl":"https://doi.org/10.30736/cvl.v7i2.840","url":null,"abstract":"In the current era of 4.0, the job market opportunities for construction services continue to develop. The Java Integrated Industrial and Ports Estate (JIIPE) construction project, which is located in an industrial area in Gresik, is an area development project that is targeted to be able to absorb a workforce of 500 thousand people. The workforce has a role in national productivity and community welfare. Therefore, the human resources of the workforce must be empowered in order to have the competence, skills, and quality optimally. The Construction Services Law Number 2 of 2017 Article 70 stipulates that every construction worker who works in the Construction sector is required to have a Work Competency Certificate. determined based on the certificate held, in addition, labor distribution and protection of workers are also not optimal, for the welfare of workers in construction projects. In this study using descriptive qualitative research . Data were obtained through interview, documentation, observation and questionnaire techniques, sampling using purposive sampling technique. Based on the results of the study, it was found that (1) JIIPE provides opportunities for local residents to become part of the world of work by looking at the appropriate competencies, (2) workers in the JIIPE area are given the opportunity to develop their soft skills. skills by participating in competency development training with output certificates of expertise or competency certificates in accordance with their fields. This is the JIIPE Manyar Gresik development project provide welfare for workers and their families.","PeriodicalId":282199,"journal":{"name":"Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121110632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Soil is a very important element in the success of a development project and is part of the foundation used. Therefore, stable soil is needed to obtain the required soil bearing capacity. Such as clay has the characteristics of low bearing capacity and large shrinkage. This study aims to determine the increase in the value of the shear strength of clay with the stabilization of PET plastic waste. The purpose of this study is to see the value of the shear strength of clay with variations in the amount of plastic waste 0%, 3.5%, 4%, and 4.5%. Method used is SNI 3420:2016 for the shear strength test. As a result, the addition of shredded plastic waste can increase the value of the shear strength of the soil.The value of shear strength increased at the percentage of plastic addition of 3.5% of 0.5663 kg/cm2 in the original soil test, the value of shear strength was 0.5271 kg/cm2, an increase of 7.43%. The conclusion is that there is an increase in the value of the shear strength of the soil stabilized by plastic waste at a variation of 3.5% of plastic waste, an increase of 7.43%.
{"title":"Experimental Study of Addition of Plastic Waste (PET) to the Shear Strength of Clay Soil","authors":"Irfan Ardiansah, Z. Zainuri, Muthia Anggraini","doi":"10.30736/cvl.v7i2.891","DOIUrl":"https://doi.org/10.30736/cvl.v7i2.891","url":null,"abstract":"Soil is a very important element in the success of a development project and is part of the foundation used. Therefore, stable soil is needed to obtain the required soil bearing capacity. Such as clay has the characteristics of low bearing capacity and large shrinkage. This study aims to determine the increase in the value of the shear strength of clay with the stabilization of PET plastic waste. The purpose of this study is to see the value of the shear strength of clay with variations in the amount of plastic waste 0%, 3.5%, 4%, and 4.5%. Method used is SNI 3420:2016 for the shear strength test. As a result, the addition of shredded plastic waste can increase the value of the shear strength of the soil.The value of shear strength increased at the percentage of plastic addition of 3.5% of 0.5663 kg/cm2 in the original soil test, the value of shear strength was 0.5271 kg/cm2, an increase of 7.43%. The conclusion is that there is an increase in the value of the shear strength of the soil stabilized by plastic waste at a variation of 3.5% of plastic waste, an increase of 7.43%.","PeriodicalId":282199,"journal":{"name":"Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117163338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Concrete quality depends on the value of the ratio of materials, how to blend and how to pour the concrete mixture, how to compact and how to care for it during the hardening process. This study aims to determine how much influence the curing process using water with a mixture of Co(NH2)2 and normal water has on the compressive strength of concrete fc' 20 Mpa. The sample is a cylindrical specimen with a diameter of 15 cm and a height of 30 cm. Samples were made 3 test objects with the age of 28 days and tested coherently. The compressive strength of normal concrete has increased in quality with the age between 7 is 9.1 Mpa to 28 days is 17 Mpa. While the concrete with curring process using water with a mixture of urea increased at age 7 with a value of 10.8 Mpa to 21 days with a value of 14.4 Mpa, but at age 28 the strength of the concrete decreased by 12 Mpa. Cracks with cone and split types are 10 pieces, this can happen because the material in the concrete mixer has not been mixed well during the concrete manufacturing process.
{"title":"The Effectiveness of the Water Additional Ingredient Urea CO(NH2)2 to the Concrete Fc' 20 MPA on Curing Process","authors":"Hafiq Syaifudin, Rio Rahma Dhana","doi":"10.30736/cvl.v7i2.892","DOIUrl":"https://doi.org/10.30736/cvl.v7i2.892","url":null,"abstract":"Concrete quality depends on the value of the ratio of materials, how to blend and how to pour the concrete mixture, how to compact and how to care for it during the hardening process. This study aims to determine how much influence the curing process using water with a mixture of Co(NH2)2 and normal water has on the compressive strength of concrete fc' 20 Mpa. The sample is a cylindrical specimen with a diameter of 15 cm and a height of 30 cm. Samples were made 3 test objects with the age of 28 days and tested coherently. The compressive strength of normal concrete has increased in quality with the age between 7 is 9.1 Mpa to 28 days is 17 Mpa. While the concrete with curring process using water with a mixture of urea increased at age 7 with a value of 10.8 Mpa to 21 days with a value of 14.4 Mpa, but at age 28 the strength of the concrete decreased by 12 Mpa. Cracks with cone and split types are 10 pieces, this can happen because the material in the concrete mixer has not been mixed well during the concrete manufacturing process.","PeriodicalId":282199,"journal":{"name":"Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132368548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Propika, Y. Septiarsilia, E. Susanti, H. Istiono
Increasing of motorcycle numbers in big cities in Indonesia, especially in Surabaya. The traffic becomes crowded and road capacity is exceeded. Because of the increasing of motorcycle volume, especially in western part of Surabaya, the government built a flyover in west outer ring road to provide solution to congestion in Surabaya. This study aimed to determine the comparation between PC-I girder and PC-U girder used. In west outer ring road, the method was used to calculate prestressed beam was fully prestressed. The researcher reviewed the prestressed beam from behavior, reaction, and impact to the all of bridge structures from structure. The Software SAP 2000 V.14.2.5 is used to structure calculation analysis. According to analysis result, the calculation has been carried out, the difference ratio of the bridge floor slabs was studied. Flyover model with PC-U prestressed beam had smaller ratio than PC-I. The comparison of strand used in PC-U beams was more than PC-I with 42.22%. The maximum moment value was occurred in PC-I girder beam was 1541.979 Tons.meter and PC-U girder was 2252.599 Tons.meter. The strand requirements and cross area section was comparised too.
{"title":"Upper Structure of Precast Concretes Comparison: PC-I and PC-U in West Outer Ring Road, Surabaya","authors":"J. Propika, Y. Septiarsilia, E. Susanti, H. Istiono","doi":"10.30736/cvl.v7i2.882","DOIUrl":"https://doi.org/10.30736/cvl.v7i2.882","url":null,"abstract":"Increasing of motorcycle numbers in big cities in Indonesia, especially in Surabaya. The traffic becomes crowded and road capacity is exceeded. Because of the increasing of motorcycle volume, especially in western part of Surabaya, the government built a flyover in west outer ring road to provide solution to congestion in Surabaya. This study aimed to determine the comparation between PC-I girder and PC-U girder used. In west outer ring road, the method was used to calculate prestressed beam was fully prestressed. The researcher reviewed the prestressed beam from behavior, reaction, and impact to the all of bridge structures from structure. The Software SAP 2000 V.14.2.5 is used to structure calculation analysis. According to analysis result, the calculation has been carried out, the difference ratio of the bridge floor slabs was studied. Flyover model with PC-U prestressed beam had smaller ratio than PC-I. The comparison of strand used in PC-U beams was more than PC-I with 42.22%. The maximum moment value was occurred in PC-I girder beam was 1541.979 Tons.meter and PC-U girder was 2252.599 Tons.meter. The strand requirements and cross area section was comparised too.","PeriodicalId":282199,"journal":{"name":"Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121637925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The purpose of this study was to analyze the flood discharge of the krung Tripa river re-period plan and flood behavior based on hydrographic data obtained from rainfall data and estimate the magnitude of peak flood discharge. Flooding is the main problem caused by the overflow of Krung Tripa, with administrative Krung Tripa passes through 2 (two) districts in Aceh Province, namely in Nagan Raya regency in the area of the watershed (DAS) reached 3472.95 Km. Several factors cause flooding, including slope factors and land height of an area, soil type factors land uses. The method used to analyze flood discharge is the Scs Hydrograph method using secondary data. The results of flood discharge analysis obtained flood discharge plans for a 2-year re-period of 2464.033 m3/s, a 5-year re-period of 3597.893 m3/s, in are-period of 10 year obtained the planned flood discharge for a 2-year re-period was 2464.033 033 m3/s, 5-year re-period 3597.893 m3/s, in the 10-year re-period 4372.634 m3/s, in the 25-year re-period 5377.98 m3/s, in the 50-year-old period 6153.054 m3/s, in the 100-year-old re-period 6946.462 m3/s.
{"title":"Flood Discharge Analysis Using the SCS Hydrograph Method in the Krung Tripa Watershed","authors":"Maulida Bunga Azzura, Astiah Amir, M. F. Ikhwali","doi":"10.30736/cvl.v7i2.870","DOIUrl":"https://doi.org/10.30736/cvl.v7i2.870","url":null,"abstract":"The purpose of this study was to analyze the flood discharge of the krung Tripa river re-period plan and flood behavior based on hydrographic data obtained from rainfall data and estimate the magnitude of peak flood discharge. Flooding is the main problem caused by the overflow of Krung Tripa, with administrative Krung Tripa passes through 2 (two) districts in Aceh Province, namely in Nagan Raya regency in the area of the watershed (DAS) reached 3472.95 Km. Several factors cause flooding, including slope factors and land height of an area, soil type factors land uses. The method used to analyze flood discharge is the Scs Hydrograph method using secondary data. The results of flood discharge analysis obtained flood discharge plans for a 2-year re-period of 2464.033 m3/s, a 5-year re-period of 3597.893 m3/s, in are-period of 10 year obtained the planned flood discharge for a 2-year re-period was 2464.033 033 m3/s, 5-year re-period 3597.893 m3/s, in the 10-year re-period 4372.634 m3/s, in the 25-year re-period 5377.98 m3/s, in the 50-year-old period 6153.054 m3/s, in the 100-year-old re-period 6946.462 m3/s. ","PeriodicalId":282199,"journal":{"name":"Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123042596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Krueng Tripa River is located Nagan Raya Regency that is vunerability to flooding. Administratively Krueng Tripa flows through two regencies in Aceh Province, namely Gayo Lues Regency in the upper reaches of the river and Nagan Raya Regency in its downstream with an area of watershed covering 2953,457 km². The rainfall in this watershed is around 2,197 mm per year. High rainfall has a major impact on flood disasters and has a negative impact on the surrounding community.The purpose and benefits of this study are to determine the magnitude of the flood discharge of the Krueng Tripa River and as input for related darta in flood mitigation problems. Analysis of the flood discharge using the Synthesis Unit Hydrograph (HSS) Gama I method. From the analysis using the distribution of log person III with return periods of 2, 5, 10, 25, 50, and 100 years, it were obtained respectively 141,520 mm, 192,349 mm; 227.094 mm; 272.270 mm; 306,569 mm; 341,869 mm. The results of the flood analysis in the Krueng Tripa River using the HSS Gama I method with return periods of 2, 5, 10, 25, 50, and 100 years in a row are 3419,276 m³/s; 4647.384 m³/s; 5486.740 m³/s; 6578,338 m³/s; 6702.133 m³/s; 8259.949 m³/s.
{"title":"The Study of Flood Discharge in Ujong Krueng in the Tripa Watershed","authors":"Putri Maulina Devi, M. Safriani, M. F. Ikhwali","doi":"10.30736/cvl.v7i2.841","DOIUrl":"https://doi.org/10.30736/cvl.v7i2.841","url":null,"abstract":"The Krueng Tripa River is located Nagan Raya Regency that is vunerability to flooding. Administratively Krueng Tripa flows through two regencies in Aceh Province, namely Gayo Lues Regency in the upper reaches of the river and Nagan Raya Regency in its downstream with an area of watershed covering 2953,457 km². The rainfall in this watershed is around 2,197 mm per year. High rainfall has a major impact on flood disasters and has a negative impact on the surrounding community.The purpose and benefits of this study are to determine the magnitude of the flood discharge of the Krueng Tripa River and as input for related darta in flood mitigation problems. Analysis of the flood discharge using the Synthesis Unit Hydrograph (HSS) Gama I method. From the analysis using the distribution of log person III with return periods of 2, 5, 10, 25, 50, and 100 years, it were obtained respectively 141,520 mm, 192,349 mm; 227.094 mm; 272.270 mm; 306,569 mm; 341,869 mm. The results of the flood analysis in the Krueng Tripa River using the HSS Gama I method with return periods of 2, 5, 10, 25, 50, and 100 years in a row are 3419,276 m³/s; 4647.384 m³/s; 5486.740 m³/s; 6578,338 m³/s; 6702.133 m³/s; 8259.949 m³/s.","PeriodicalId":282199,"journal":{"name":"Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132386481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Concrete is a form of construction in the form of a composite material consisting of a mixture of fine aggregate, coarse aggregate, cement, and water. However, in certain cases, the concrete application is often a problem, especially the lack of a minimal amount of coarse aggregate material, increasing material prices. Recycled concrete aggregate (RCA) is an embodiment of concrete composed of recycled materials. Recycled material is obtained from fragments or remnants of the demolition of unused concrete. The method used to make concrete from the constituent materials using concrete waste as coarse aggregate per the rules of science is experimental. The tests are the aggregate moisture content test, the mud content test, the coarse aggregate abrasion test, the slump test, and the concrete compressive strength test at 28 days of treatment. The compressive strength results showed that the normal concrete sample could reach FC 18.53 MPa. The concrete sample using recycled coarse aggregate reached FC 23.79 MPa, so using recycled materials for manufacturing concrete can achieve the planned target
{"title":"Experimental Study of Concrete Making Using Recycled Coarse Aggregate","authors":"Moch Reza Maskur, Zendy Bima Mahardana, Ibra Dewandono, Afan Ridlo Abdulloh, M. Akbar, Moch Okhynawa, Ronaldin Lindimeha","doi":"10.30736/cvl.v7i2.858","DOIUrl":"https://doi.org/10.30736/cvl.v7i2.858","url":null,"abstract":"Concrete is a form of construction in the form of a composite material consisting of a mixture of fine aggregate, coarse aggregate, cement, and water. However, in certain cases, the concrete application is often a problem, especially the lack of a minimal amount of coarse aggregate material, increasing material prices. Recycled concrete aggregate (RCA) is an embodiment of concrete composed of recycled materials. Recycled material is obtained from fragments or remnants of the demolition of unused concrete. The method used to make concrete from the constituent materials using concrete waste as coarse aggregate per the rules of science is experimental. The tests are the aggregate moisture content test, the mud content test, the coarse aggregate abrasion test, the slump test, and the concrete compressive strength test at 28 days of treatment. The compressive strength results showed that the normal concrete sample could reach FC 18.53 MPa. The concrete sample using recycled coarse aggregate reached FC 23.79 MPa, so using recycled materials for manufacturing concrete can achieve the planned target","PeriodicalId":282199,"journal":{"name":"Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129436134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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