Pub Date : 2022-08-31DOI: 10.57203/jriteks.v1i1.2022.20-27
Frida Mustika Dewi, Mirza Ghulam Rifqi, Muhammad Hilmy
Many concrete technological innovations are expected to produce high quality. One of them is by improving the quality of the constituent material, namely mortar which functions as a matrix for binding aggregates in the concrete mixture. Reducing the water content in the mortar mixture results in a decrease in the workability of the mortar and causes the mortar to be hollow/porous so that the resulting quality decreases. Added materials are needed that can reduce the amount of water without reducing the value of flow. This study uses an additive type F (superplasticizer) with variations in water reduction which aims to determine its effect on the compressive strength value of the mortar. The test object is in the form of a cube with variations in the addition of 1% and 2% superplasticizer from the use of cement, and variations with the addition of superplasticizer with the same amount but reducing the amount of water use by 0%, 5%, 10% and 15% respectively. The test results showed that the addition of SP increased the compressive strength of the mortar. The increase in mortar with the addition of SP obtained the optimum value for the mixture B-1 of 30.128% with a compressive strength value of 36,889 MPa and B-2 of 34,513% with a value of 38,143 MPa. The addition of superplasticizer levels also affects the flow mortar value, namely the higher the addition of SP, the higher the flow value. The optimum value of flow mortar in sample B-2 was 20 cm.
{"title":"PENGARUH PENAMBAHAN ZAT ADITIF TIPE F (SUPERPLASTICIZER) DENGAN VARIASI PENGURANGAN AIR TERHADAP NILAI KUAT TEKAN PADA MORTAR","authors":"Frida Mustika Dewi, Mirza Ghulam Rifqi, Muhammad Hilmy","doi":"10.57203/jriteks.v1i1.2022.20-27","DOIUrl":"https://doi.org/10.57203/jriteks.v1i1.2022.20-27","url":null,"abstract":"Many concrete technological innovations are expected to produce high quality. One of them is by improving the quality of the constituent material, namely mortar which functions as a matrix for binding aggregates in the concrete mixture. Reducing the water content in the mortar mixture results in a decrease in the workability of the mortar and causes the mortar to be hollow/porous so that the resulting quality decreases. Added materials are needed that can reduce the amount of water without reducing the value of flow. This study uses an additive type F (superplasticizer) with variations in water reduction which aims to determine its effect on the compressive strength value of the mortar. The test object is in the form of a cube with variations in the addition of 1% and 2% superplasticizer from the use of cement, and variations with the addition of superplasticizer with the same amount but reducing the amount of water use by 0%, 5%, 10% and 15% respectively. The test results showed that the addition of SP increased the compressive strength of the mortar. The increase in mortar with the addition of SP obtained the optimum value for the mixture B-1 of 30.128% with a compressive strength value of 36,889 MPa and B-2 of 34,513% with a value of 38,143 MPa. The addition of superplasticizer levels also affects the flow mortar value, namely the higher the addition of SP, the higher the flow value. The optimum value of flow mortar in sample B-2 was 20 cm.","PeriodicalId":107540,"journal":{"name":"Jurnal Riset Teknik Sipil dan Sains","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132414778","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}
Pub Date : 2022-08-31DOI: 10.57203/jriteks.v1i1.2022.9-19
Fajar Joko Purnomo, Kurnia Hadi Putra
Poros Gresik– Lamongan Highway KM 36-39 is a national road that connects the provinces of East Java and Central Java, the road is often traversed by high-loaded vehicles, resulting in road damage that can interfere with the safety and comfort of users. This study aims to determine the condition of the pavement layer according to the type and level of damage that occurs and can determine how to maintain it. The research was conducted by means of a survey to obtain primary data so that it can be used as a reference for the calculation and maintenance of road pavements. The method used is the Bina Marga method, PCI (Pavement Condition Index), and SDI (Surface Distress Index). On the Jalan Raya Poros Gresik – Lamongan KM 36-39, the types of damage include grain release, holes, box cracks, side cracks, patches, curls, crocodile cracks, longitudinal cracks, skid cracks, joint cracks and transverse cracks. The Bina Marga method obtained a priority order value of 7 which is included in the routine maintenance program. The PCI method obtained an average value of less than 60, and rehabilitation can be carried out for damage. The SDI method got a value of 45 which means it is in good condition. Handling carried out refers to the Practical Guide to Routine Road Maintenance (1992) in the form of Asphalt (P2), Patching (P5), and Leveling (P6).
Poros Gresik - Lamongan公路KM 36-39是连接东爪哇省和中爪哇省的国道，道路经常被高负荷车辆穿越，导致道路损坏，可能干扰用户的安全和舒适。本研究旨在根据所发生的损伤类型和程度来确定路面层的状况，并确定如何进行维护。这项研究是通过调查的方式进行的，以获得原始数据，以便为道路路面的计算和维护提供参考。使用的方法是Bina Marga法、PCI(路面状况指数)和SDI(地表损伤指数)。在Jalan Raya Poros Gresik - Lamongan KM 36-39上，损坏类型包括颗粒释放、孔洞、箱形裂缝、侧裂缝、斑块、卷曲、鳄鱼裂缝、纵向裂缝、滑移裂缝、接缝裂缝和横向裂缝。Bina Marga方法得到的优先级顺序值为7，被纳入日常维护计划。PCI法获得的平均值小于60，对损伤可进行康复治疗。SDI方法的值为45，这意味着它处于良好状态。处理方法参照1992年《日常道路养护实用指南》，采用沥青(P2)、修补(P5)和找平(P6)的形式。
{"title":"ANALISIS KERUSAKAN JALAN DENGAN METODE PCI, SDI, DAN BINA MARGA SERTA ALTERNATIF PENANGANAN KERUSAKAN","authors":"Fajar Joko Purnomo, Kurnia Hadi Putra","doi":"10.57203/jriteks.v1i1.2022.9-19","DOIUrl":"https://doi.org/10.57203/jriteks.v1i1.2022.9-19","url":null,"abstract":"Poros Gresik– Lamongan Highway KM 36-39 is a national road that connects the provinces of East Java and Central Java, the road is often traversed by high-loaded vehicles, resulting in road damage that can interfere with the safety and comfort of users. This study aims to determine the condition of the pavement layer according to the type and level of damage that occurs and can determine how to maintain it. The research was conducted by means of a survey to obtain primary data so that it can be used as a reference for the calculation and maintenance of road pavements. The method used is the Bina Marga method, PCI (Pavement Condition Index), and SDI (Surface Distress Index). On the Jalan Raya Poros Gresik – Lamongan KM 36-39, the types of damage include grain release, holes, box cracks, side cracks, patches, curls, crocodile cracks, longitudinal cracks, skid cracks, joint cracks and transverse cracks. The Bina Marga method obtained a priority order value of 7 which is included in the routine maintenance program. The PCI method obtained an average value of less than 60, and rehabilitation can be carried out for damage. The SDI method got a value of 45 which means it is in good condition. Handling carried out refers to the Practical Guide to Routine Road Maintenance (1992) in the form of Asphalt (P2), Patching (P5), and Leveling (P6).","PeriodicalId":107540,"journal":{"name":"Jurnal Riset Teknik Sipil dan Sains","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132924596","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}
Pub Date : 2022-08-31DOI: 10.57203/jriteks.v1i1.2022.41-47
I. K. H. Wiryasuta, Qurrotus Shofiyah, Wilghis Meilinia Azizah
Railway factory PT. Industri Kereta Api (Persero) in Banyuwangi was built by PT. Adhi Karya (Persero) Tbk. as the main contractor. The main construction used in the project is a steel structure (pre-engineered steel building). The work is not free from the emergence of risks, because of the significant weight of the work carried out. Risk cannot be eliminated, but it can be minimised by implementing risk management. One of the risk management processes is risk identification. This research aims to identify the possible risks that can occur, and the category of emergency for the project. Data were collected by distributing questionnaires to four respondents, namely the contractor’s project manager. Furthermore, the data from the questionnaire was processed using the Analytical Hierarchy Process (AHP) method to find the risk weights. The analysis process is continued by assessing the risk level for each sub-risk variable, and the most significant result is considered the dominant risk. The identification resulted in 3 high risks, three medium risks, and 18 low risks. The three most increased risks are as follows: the availability of materials with a weight of 2.581, the transfer of potential senior workers with a weight of 0.989, and changes in the work schedule with a weight of 0.779.
位于Banyuwangi的铁路工厂PT. Industri Kereta Api (Persero)由PT. Adhi Karya (Persero) Tbk建造。作为总承包商。本工程主要采用钢结构(预制钢结构建筑)。由于所开展的工作的重要性，这项工作并非没有出现风险。风险无法消除，但可以通过实施风险管理将其最小化。风险管理过程之一是风险识别。本研究旨在识别可能发生的风险，以及项目的紧急情况类别。收集数据的方式是向四名受访者发放问卷，即承包商的项目经理。采用层次分析法(AHP)对问卷数据进行处理，确定风险权重。分析过程通过评估每个子风险变量的风险水平继续进行，最显著的结果被认为是主导风险。识别出3个高风险、3个中等风险和18个低风险。增加最多的三个风险分别是:材料可得性(权重为2.581)、潜在高级工人转移(权重为0.989)和工作进度变化(权重为0.779)。
{"title":"IDENTIFIKASI RISIKO KONSTRUKSI PADA PEKERJAAN STRUKTUR BAJA WORKSHOP PT. INKA BANYUWANGI DENGAN METODE ANALYTICAL HIERARCHY PROCESS (AHP)","authors":"I. K. H. Wiryasuta, Qurrotus Shofiyah, Wilghis Meilinia Azizah","doi":"10.57203/jriteks.v1i1.2022.41-47","DOIUrl":"https://doi.org/10.57203/jriteks.v1i1.2022.41-47","url":null,"abstract":"Railway factory PT. Industri Kereta Api (Persero) in Banyuwangi was built by PT. Adhi Karya (Persero) Tbk. as the main contractor. The main construction used in the project is a steel structure (pre-engineered steel building). The work is not free from the emergence of risks, because of the significant weight of the work carried out. Risk cannot be eliminated, but it can be minimised by implementing risk management. One of the risk management processes is risk identification. This research aims to identify the possible risks that can occur, and the category of emergency for the project. Data were collected by distributing questionnaires to four respondents, namely the contractor’s project manager. Furthermore, the data from the questionnaire was processed using the Analytical Hierarchy Process (AHP) method to find the risk weights. The analysis process is continued by assessing the risk level for each sub-risk variable, and the most significant result is considered the dominant risk. The identification resulted in 3 high risks, three medium risks, and 18 low risks. The three most increased risks are as follows: the availability of materials with a weight of 2.581, the transfer of potential senior workers with a weight of 0.989, and changes in the work schedule with a weight of 0.779.","PeriodicalId":107540,"journal":{"name":"Jurnal Riset Teknik Sipil dan Sains","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127847840","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}
Pub Date : 2022-08-31DOI: 10.57203/jriteks.v1i1.2022.35-40
Moh. Aji Pangestu, Yuni Ulfiyati, Zulis Erwanto
The Engineering, Procurement, Construction, Commissioning (EPCC) project of the train workshop in Banyuwangi has an area of 83 hectares, and 30 Ha. The project area has uneven elevation contours, so cut and fill work is necessary. Cut and fill works require the use of heavy equipment so that the implementation can be completed according to the schedule and can optimize costs without neglecting the time to be achieved. The purpose of this study was to apply the simplex method in optimizing the cost of using heavy equipment in cut and fill work at the PT INKA Persero. The results of the application of the simplex method in optimizing the cost of using heavy equipment in cut and fill work for excavation work in combination 4 with excavator type 2 with a total of 3 units, dump truck type 1 with a total of 6 units, and bulldozer type 1 with a total of 2 units, with a total cost of Rp.4.955.077.432. For the optimal alternative tools for embankment work, namely alternative combinations of 4 by using excavator type 2 totaling of 2 units, dump trucks type 1 totaling of 3 units, bulldozer type 1 totaling 1 unit, vibro roller totaling 1 unit, and water tank truck totaling 1 unit, with the total cost of Rp. 3,403,048.016.
{"title":"PENERAPAN METODE SIMPLEKS DALAM OPTIMASI BIAYA PENGGUNAAN ALAT BERAT PADA PEKERJAAN CUT AND FILL PROYEK WORKSHOP PT. INKA PERSERO","authors":"Moh. Aji Pangestu, Yuni Ulfiyati, Zulis Erwanto","doi":"10.57203/jriteks.v1i1.2022.35-40","DOIUrl":"https://doi.org/10.57203/jriteks.v1i1.2022.35-40","url":null,"abstract":"The Engineering, Procurement, Construction, Commissioning (EPCC) project of the train workshop in Banyuwangi has an area of 83 hectares, and 30 Ha. The project area has uneven elevation contours, so cut and fill work is necessary. Cut and fill works require the use of heavy equipment so that the implementation can be completed according to the schedule and can optimize costs without neglecting the time to be achieved. The purpose of this study was to apply the simplex method in optimizing the cost of using heavy equipment in cut and fill work at the PT INKA Persero. The results of the application of the simplex method in optimizing the cost of using heavy equipment in cut and fill work for excavation work in combination 4 with excavator type 2 with a total of 3 units, dump truck type 1 with a total of 6 units, and bulldozer type 1 with a total of 2 units, with a total cost of Rp.4.955.077.432. For the optimal alternative tools for embankment work, namely alternative combinations of 4 by using excavator type 2 totaling of 2 units, dump trucks type 1 totaling of 3 units, bulldozer type 1 totaling 1 unit, vibro roller totaling 1 unit, and water tank truck totaling 1 unit, with the total cost of Rp. 3,403,048.016.","PeriodicalId":107540,"journal":{"name":"Jurnal Riset Teknik Sipil dan Sains","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132319486","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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