IJTI (International Journal Of Transportation And Infrastructure)
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Performance analysis of Unsignal Intersection and Road section with MKJI Method 1997
Full text linkIntersection Telkom Jatiasih is one of the congestion point in Bekasi City. This is at leave because of the high volume of traffic and also a busy route from Bekasi to Jakarta and the surrounding area, plus the direction to the toll gate Jatiasih. There is no sign – traffic sign making of Intersection Telkom Jatiasih is an unsignable junction, this is what causes the flow of irregular vehicles causing congestion. The data retrieval method is done by surveying directly to the research site. Based on survey result in Telkom Jatiasih intersection, the highest vehicle volume accurred in the afternoon of Monday, April 29 th, 2019. Calculated results based on the field survey result data using the MKJI 1997 book guidelines, obtaining the Degree of Saturation (DS) = 1,86 with the Level Of Service F value, indicating the stopping of the vehicle current at the congestion point such as the meeting path, or repair lanes that cause a long queue of vehicles. On the road Of Wibawa Mukti II Highway – Jatiasihi the vehicle flows are still recorded stably with the Degree of Saturation (DS) = 1,16 with a Level Of Service F value which means the level of road service is still stable. From the research results get an alternative solution Telkom Jatiasih intersection is in alternative 2 because it gets a decrease in the Degree of Saturation (DS) = 1,11 with the value of the Level Of Service F which means high traffic flow condition, but Current conditions are still stable
CASE STUDIES OF PRIVATE GOVERNMENT COOPERATION: PROCUREMENT OF LAND DEVELOPMENT PROJECTS TOLL ROAD KRIAN – LEGUNDI – BUNDER – MANYAR
Full text linkOne of the efforts to maintain and enhance the economic growth of a region is supported by the existence of infrastructure development. Infrastructure development in the form of a toll road could increase the potential for the development of the economy of the region through improved the smooth flow of goods and services. Toll road construction project Krian– Legundi – Bunder – Manyar areas is one of national strategic Project (PSN) that are in the shadow of the State Ministry of Public Works and Public Housing (PUPR) with PT. Waskita Bumi Wira as the initiator. The research method used is descriptive qualitative, i.e. by doing observation and interviews with related parties on the project construction of KLBM toll road. The results of this study are: (i) the forms of cooperation carried out in the construction of KLBM toll roads, is Build Operate Transfer (BOT); (ii) the process of acquiring the land in KLBM toll road development projects are the responsibility of PT WBW assisted by PPK Land Procurement and BPN Sidoarjo and Gresik Regency; (iii) Proceedings reversion bailouts land is done through examination by the BPKP and then verified by the LMAN and the value of payments carried out as stated in the agreement
TIME OPTIMIZATION USING CPM, PERT AND PDM METHODS IN THE SOCIAL AND DEPARTMENT OF KELAUTAN BUILDING DEVELOPMENT PROJECT GRESIK DISTRICT
Full text linkPlanning a project there are many important things that affect the success and smoothness, one of which planning time implementation of the right and efficient work. The way to overcome the problem is by using several methods such as CPM (Critical Path Method), PERT (Project Evaluation and Review Teqnique), PDM (Precedence Diagram Method). From the calculation result show that the duration of project completion using CPM method is 57 weeks, project completion duration using PERT method is 78 + 7.5 weeks with the probability of achieving project completion time target is 99.87% and project completion duration using PDM method is 30 weeks. So the method that best suits the Social Service Development Project and the Office of Marine Gresik Regency is the PDM method because the PDM method is capable of producing shorter project completion periods than the CPM and PERT methods of 30 weeks
CEMENT ADDITIVE USE REDUCTION FACTORS TO IMPROVING THE QUALITY CONCRETE BIOCONC
Full text linkTechnology applications in the concrete mix is ??growing very rapidly in this modern era to obtain concrete results with characteristics that are environmentally friendly and non-toxic. Bioconc is innovation in developing green technology with the insertion of a micro-gap or slit gradation mycelia microbe as a micro-filter to mengoptimalkanatau reduce the amount of cement concrete on the concrete mix in total will increase the efficiency in the concrete and reduce the material components of the most expensive in the concrete, the cement. in job mix additive Bioconc require R%, ie a reduction factor of cement that will determine how the dose of cement and dose additive Bioconc, and therefore to seek R% require some percentage of reduction factor of cement optimum ranging from the concrete Normal, 5%, 10%, 15%, 20%, 25%, 30%, 35%.? + 31271x? - 4709x³ - 233.1x² + 79.66x + 22:18, concrete quality obtained from normal concrete with fc '= 20 MPa generate optimum value reduction of cement amounted to 28.869%
LIGHTWEIGHT CONCRETE MAKING ANALYSIS USING MIXED CELLULOSE
Full text linkDevelopment era of globalization has resulted in increasing number of second-hand goods / waste that its existence can be a problem for life in the future. Many things are done in order to recycle paper cement in order to overcome this problem the existence of waste. One way is to use waste paper to be a part of the building. The purpose of this study, to determine the compressive strength and optimum density. Laboratory experimental method uses a variation of 10%, 20%, 30% and testing conducted in the form of compressive strength and density. From the test results obtained by the result of decrease in the compressive strength and density. In addition cellulose concrete mix design with variations determined that 10%, 20%, 30% resulted in a decrease in the compressive strength of concrete
RISK MANAGEMENT IN CONSTRUCTION OF DRY BULK JETTY AT TELUK LAMONG MULTIPURPOSE TERMINAL
Full text linkRisk is a situation that is uncertain and there is an element of danger, the consequences that could occur due to a process that is ongoing or upcoming events. One of them in construction, where activity in this activity, there is some risk that may occur and give a great impact in the success of the completion of the work. Approaches were made to the risks involved with understanding/identification of risk, risk measurement, risk mapping, the response to risk. So with the existence of such activities can provide a recommendation as to whether the risks are acceptable, divided, reduced or avoided. This research was conducted with descriptive quantitative research methods. The results of this study concluded that there were 7 risk factors in very high level understanding of contract documents i.e., different site condition, productivity, quality equipment/material quality, smooth cash flow, the competence of sub contractors, and the influence of the weather. Against the risk of handling very high i.e. by way of doing business – business everything possible so that it can reduce the level of risk that exists so that the work can be resolved properly and the third project targets can be achieved
EFFECT OF ADDING POLYVINYL ACETATE AND COCONUT SHELL ON CONCRETE
Full text linkManufacture of concrete with a mixture of coconut shell and polyvinyl acetate. The material used in this study are from the coconut shell coconut waste treatment process which is crushed to a maximum size of 20 mm, whereas polyvinyl acetate condition is milky white emulsion. This study uses laboratory experiments concrete according to standards ISO 7656: 2012 for normal concrete and developed into concrete innovation. Coconut shell as a substitute for gravel with a rate of 8% and 10%, while the addition of polyvinyl acetate in the amount of 8% and 10%. At the time of fresh concrete workmanship, testing the slump test to control the workability and homogeneity. Treatment (Curing) specimen is done by covering the paper specimens with wet cement. Compressive strength testing carried out during the 28 days of the test specimen. The results obtained on the compressive strength with the highest average percentage of materials such as concrete polyvinyl acetate 8% and 8% of coconut shell Amounting to 351 kg/cm2 with an average density of 2199 kg/cm3. In each of the test object with a weight value is the quality efficiency in concrete polyvinyl acetate 8% and 8% of coconut shell
VALUE CHAIN PALM OIL INDUSTRY ANALYSIS ON THE POLYOL POLYESTER PATHWAY
Full text linkPalm oil is one of important Indonesia's export commodities. In 2017, the export value of palm oil and its derivatives (excluding oleochemicals and biodiesel) penetrated US $ 22.97 billion. The bright prospect of the palm oil commodity in the world vegetable oil trade encouraged the Indonesian government to develop an integrated palm oil industry. On the other hand, some downstream petrochemical products have begun to experience difficulties in raw materials, including Polyurethane. Polyurethane is a polymeric material from polyols and isocyanates which are widely used as packaging. Polyol itself is a polyether produced from the petroleum fraction. The polyol industry can be developed in the industrial tree branch of glycerol / glycerin in the large palm oil industry tree. Glycerin is generally the most end product of the palm oil fractionation industry, after cooking oil, margarine, shortening, and soap. In addition, glycerin is also a by-product of fatty acid esterification during biodiesel production. The value chain analysis carried out in the palm oil industry chain shows that polyol production has added new pathways that can extend the palm oil downstream industry chain. Analysis carried out on the main chain and the combined oil palm industry chain has been successfully used to map the polyol industry value chain on the palm oil track. The extension of the palm oil industry value chain on the polyol industry pathway can unite the industry with the chain of production of the petrochemical industry, in this case polyurethane, which at least can help substitute raw materials. A more detailed analysis of the perceptions of the role of the polyol industry in two directions, namely the palm oil industry chain with the polyurethane industry shows that there is a very large intersection of interests. Almost all perceptions of the role of key value chain activities in the polyurethane industry can be covered by the role of the value chain main activities in the palm oil polyol industry. Both value chains can be said to complement and complement each other. The production of polyester polyols can be absorbed by the needs of the polyurethane industry
ANALYSIS BEHIND THE SLOPE STABILITY IN THE LIMESTONE QUARRY BLOK MLIWANG TIMUR PT. SEMEN INDONESIA (PERSERO) TBK. TUBAN, JAWA TIMUR
Full text linkClay mining activities at PT. Semen Indonesia (Persero) Tbk uses a Surface Mining system with tiered or layered mining methods. The clay mining activity in east kuari mliwang has produced 4-6 layers from the lowest elevation which is +0 meters above sea level (masl), with the opening of an area of ??27 hectares, from the results of mining that has been done. Each slope made must have safety factors that meet the standards set by the Ministry of Energy and Mineral Resources and the Indonesian National Standard (SNI) taking into account the efficiency of reserves that will be in the mine. The return analysis of slope stability was obtained based on the value of the safety factor of a slope using the Bishop Simplified method with the help of Rocscience Slide v6.0 software. Input data in the form of physical and mechanical properties obtained from laboratory testing. Determination of minimum safety factors using SNI 8460: 2017, ICS 91.010.01 for soil material, namely FK ? 1.5. The factors that affect slope stability at the study site are the physical and mechanical properties of the soil, the slope geometry, and the condition of the ground water table. The results of the calculation of slope stability safety factors at the study site have different results, for Block T-03, slopes with an overall height of 21 m, the overall slope angle of 27 ° has a FK value = 1.502. Block W-06, Slope with an overall height of 25 m, the overall slope angle of 27 ° has a FK value = 1.504. And Block Z-04, Slope with an overall height of 26 m, the overall slope angle of 30 ° has a FK value = 1.508. From the calculation results the average location of the study has a value of FK ? 1.5 which indicates the slope is in a stable condition
THE PRODUCTION PROCESS OF TOFU USING RAW MATERIALS TO KEEP QUALITY
Full text linkIndonesia is a tropical country where many communities work as farmers by using fertile soil. One of them is soybeans, soybeans can be processed into various foods and beverages, such as tofu, tempe and soybean juice. There are various methods of soybeans process, so that the quality is also various. Quality is the totality of facilities and characteristics of products or services that meet the needs, expressed or implied (Loh, 2001: 35). One of the most favorite foods of Indonesian people is tofu