ARTICLE

Cengkareng Underpass is an underpass located in Prof. Airport Toll Underpass Sedyatmo Tanggerang, Tangerang Regency.

Periodic inspection of the underpass should be done every 5 years since the underpass is operated. This is needed to know the actual condition of the underpass after its useful life and as a preliminary data reference for the next periodic inspection. For this reason, PT. Belaputra Intiland (BI) appointed PT. Graha Survey Indonesia (GSI) in accordance with the work contract awarded on November 16, 2017 to conduct assessments, Non Destructive Test (NDT) & Destructive Test (DT) and Structure Analysis.

The purpose of this examination is to identify the actual condition of the underpass structure and underpass elements. While the purpose of this activity is to get recommendations for proper handling of the underpass structure.

The objectives of this activity are:

• Obtain information on the condition of underpass elements by checking visual details and special checks,
• Obtain information on the condition of structural elements as initial underpass data.
• Obtain an evaluation of the results of underpass structural and element testing

Chloride is a major cause of concrete corrosion in the marine environment. The damage caused only damage the reinforcement of the concrete and relatively does not damage the material. Chloride ions attack the passive layer when it reaches the Critical Concentration in that layer, even in high pH conditions.

The damage begins with the formation of holes in the location where the passive layer is destroyed.

Chloride attack on concrete includes a process of corrosion in the form of self catalyst. This process causes rapid refuction of the cross-sectional area of the bone, often invisible because it attacks only on the bone. The mechanism of chloride penetration into concrete that is with the Fe ion reacts with the chloride ion which forms iron chloride (FeCl2). As a result of Chloride attacks in general concrete structures will only have ½ the age of service life and large rehabilitation costs, of course this can only be ensured by a comprehensive assessment

The structure of the conveyor and jetty of PT. Wahana Baratama Mining has completed its construction phase and is operating in accordance with its building functions. During the service period, it is possible for the condition to decrease due to several factors, namely environmental factors such as corrosion and physical factors such as the physical condition of the conveyor structure and the jetty and the amount of load that exceeds the capacity.

In order for the conveyor and jetty structure to have a service life in accordance with the plan, it must be consistently maintained and maintained so that the infrastructure can function optimally, safely, comfortably, and smoothly with a maximum / longer service life, and must continuously improve its service to conveyor users and the jetty. Maintenance is a handling activity in the form of maintenance, rehabilitation, support and improvement in order to obtain a more stable and long-lasting service capability. Maintenance activities will run well and optimally if supported by complete, accurate and actual data about the condition of the conveyor and jetty structures being operated.

The purpose of this inspection is to identify the structural conditions and elements of the conveyor and jetty. While the purpose of this activity is to get actual data from the conveyor and jetty structures.

The objectives of this activity are:

• Obtain information on the condition of conveyor and jetty structural elements by conducting visual detail checks and special checks,
• Obtain actual design data for analysis purposes,
• Conduct an evaluation of the conditions of the results of the test structure and conveyor and jetty elements.

Tail-race tunnel PT. Java-Bali Power Plant (PJB), Cirata was founded in 1995. With consideration due to the condition of the Tail-race that has been damaged, therefore to ensure the condition of structural elements in good condition or not, so it is necessary to test the Tail-race. Therefore PT. Java-Bali Power Plant (PJB), Cirata needs to be carried out structural inspection (Forensic Assessment including NDT and DT Testing). It is very necessary to know the actual condition of the elements of the Tail-race structure. Tests carried out are special examinations in the form of visual examination, Non-Destructive Test (NDT) and Destructive Test (DT). PT Alocita Mandir was assigned to carry out the inspection with the aim of evaluating the area by conducting an assessment and testing to be able to provide recommendations for proper handling

The purpose of this check is to identify the actual condition of the Trail Race. While the purpose of this activity is to get a picture of the actual condition of the structure in the field.

The objectives of this activity are:

• Obtain information on the conditions of the Trail-race element by conducting a visual inspection and special inspection,
• Obtain information on the condition of structural elements as initial data Tail-race

The Zuria Tower Simatupang building is the first and only private office in T.B Simatupang, South Jakarta. This building has 17 floors and is supported by 3 underground parking areas, with an office floor of less than 121 sqm to 336 sqm semi gross, as one of the modern and environmentally friendly office buildings. But the Owner wants to know the actual condition of the structure, then an assessment is carried out to obtain actual data from the structure.

The purpose of the inspection is to obtain information on the condition of the existing building elements by conducting an Assessment. This is needed to know the actual condition of the building structure during the construction process as a preliminary data reference. Tests carried out are special examinations in the form of Non Destructive Test (NDT), structural verticality and building structure elevation testing.

The purpose of this inspection is to identify the actual condition of the building structure. While the purpose of this activity is to get a picture of the actual condition of the structural capacity in the field.

The objectives of this activity are:

• Obtain information on the condition of building elements by conducting a visual inspection and special inspection,
• Obtain information on the condition of structural elements as initial building data

Tereos FKS Indonesia is a pioneer in the integrated corn processing industry in Indonesia. To answer the high market demand for corn starch and sweeteners in Southeast Asia, a joint venture between Tereos Group and FKS Group was created in 2014. During this process, a total additional investment capital of 100 million USD was carried out by the two companies in 2017.

Tereos FKS Indonesia processes cornflakes into a series of quality products for raw materials in various sectors, such as food & beverage, animal feed, textiles, adhesives, and other sectors. Through the products produced and the jobs created, Tereos FKS Indonesia also contributed in developing local industries. Now, Tereos FKS Indonesia has created 500 jobs with 99% of them filled by local human resources.

Located on Jl. Raya Anyer Cigading, Tegalratu, Serang, Cilegon City, Banten Tereos FKS Indonesia has integrated facilities for producing a variety of corn starch derivative products. At present, the total capacity reaches 1,000 tons of corn every day and will continue to increase by 30% or 1,300 tons by the end of 2018.

The Main Storage building, the Glucose building, and the Maltodextrin building have long been up and running. To ensure the condition of the structural elements in good condition or not, it is necessary to test the structure of the building. Therefore, the Main Storage building, the Glucose building, and the Maltodextrin Tereos FKS Indonesia building need to be carried out in full structural inspection (Forensic Assessment includes NDT, DT testing, and Structural Analysis). It is very necessary to know the actual condition of each element of the building structure. Tests carried out are special examinations in the form of visual inspection, Non Destructive Test (NDT), Destructive Test (DT), and Structural Analysis based on the results of field data. PT Graha Survey is assigned to carry out the inspection in order to evaluate the area by conducting an assessment and testing to be able to provide recommendations for proper handling.

The purpose of this inspection is to identify the actual condition of the building structure. While the purpose of this activity is to get a picture of the actual condition of the structural capacity in the field.

The objectives of this activity are:

• Obtain information on the condition of building elements by conducting a visual inspection and special inspection,
• Obtain information on the condition of structural elements as initial building data
• Get an evaluation of the results of building structure testing
• Providing recommendations based on engineering evaluation results.

Toll Road Ir. Wiyoto Wiyono, MSc Cawang Tanjung Priok – Pluit section that serves as a connecting road to the port of Tanjung Priok and Soekarno Hatta International Airport is a toll road managed by PT. Citra Marga Nusaphala Persada and one of the vital roads in supporting the national economy. With the increase in economic development followed by an increase in the number of toll road users as well as the amount of tonnage on elevated roads and uncontrolled environmental aspects, it is probable that the flyover will receive a negative influence from the problem. Besides that, part of the elevated road is in a tidal area, so that it is continuously submerged by industrial and household wastewater, which will worsen the effect on the structure.

Pier structure elements in the overpass structure are in the water, so that it is affected by the tidal Kali Ancol which empties into the sea, where tidal height can reach 1 m. Nevertheless, Pier on land is also affected by the water environment in Ancol River, which is in the form of relatively high humidity.

With consideration because Jacketing Pier on the port toll road section has cracked and porous in Jacketing construction, so to ascertain the causes and impacts that will occur need to be tested on the Jacketing Pier. Therefore Jacketing Pier on the port toll road needs to be carried out structural inspection (Forensic Assessment includes NDT and DT Testing).

It is very necessary to know the actual conditions and preventive actions on the Jacketing Pier. Tests carried out are the Non Destructive Test (NDT) and Destructive Test (DT). PT Graha Survey Indonesia is assigned to conduct the inspection with the aim of evaluating the area by conducting an assessment and testing to be able to provide recommendations for proper handling.

The purpose of this examination is to identify the actual condition of Jacketing Pier. While the purpose of this activity is to get a picture of the actual condition of the structure in the field. The objectives of this activity are :

• Obtain information on the condition of building elements by performing a visual, special inspection, NDT and DT.
• Obtain information on the condition of the Jacketing Pier structure and get recommendations for proper handling.

Merah Putih bridge is the Cable Stayed Bridge located in Ambon City, Maluku Province, Indonesia. This bridge stretches the Bay in Ambon Island, which connects Rumah Tiga Village (Poka) in Sirimau District on the north side, and Hative Kecil / Galala Village in Ambon Bay District on the south side. This bridge is the longest bridge in Eastern Indonesia, is part of the overall layout of Ambon City, and has become an icon of Ambon city. Jembatan Merah Putih was built on July 17, 2011 and was inaugurated on April 4, 2016.

The Merah Putih bridge has been in operation for several years. Inspection of the bridge was carried out after the bridge was operated and found several indications of seepage on the Bridge Pylon. Therefore to ensure the condition of the structural elements in good condition or not, it is necessary to consider the structure of the bridge. The test carried out is a special examination in the form of Non-Destructive Test (NDT) Ultrasonic Pulse Velocity Test. The examinations aim to evaluate the area by conducting assessments and testing to be able to provide recommendations for proper handling. 

The purpose of this examination is to identify the actual condition of structural and bridge elements. While the purpose of this activity is to get recommendations for proper handling of the Bridge Structure.

The objectives of this activity are:

• Obtain information on the condition of structural elements from visual inspection and special inspection.
• Conduct an evaluation of the condition of the results of visual inspection and special checks conducted.
• Suggestions and recommendations based on the results of structural element testing.

Tanah Abang Multipurpose Crossing (JPM) bridge located on Jl. Jatibaru Tanah Abang, and built along 386.4 meters with a width of 12.6 meters and is located right above the Jatibaru road. The executors of the JPM Development are PT. Amarta Karya (Persero) and construction supervision carried out by PT. Bina Karya (Persero) which is an assignment from the Provincial Government of DKI Jakarta to overcome congestion around the Tanah Abang Market. The framework of the construction of the Tanah Abang Multipurpose Crossing Bridge (JPM) 80% is done at the factory using a knock down system, which means the steel frame and structure are made separately from the work site. After completion, the bridge will be sent to Tanah Abang to be installed. The construction of Tanah Abang Multipurpose Crossing Bridge (JPM), divided into 4 zones, starting from Zone A, Zone B, Zone C and Zone D, and each with a length of 100 meters. Skybridge or Multi-Purpose Crossing Bridge (JPM) Tanah Abang is the policy of the DKI Jakarta Regional Government to overcome solutions for street vendors not to sell on the sidewalks of Jalan Jati Baru, Tanah Abang, Jakarta. Skybridge connecting Tanah Abang Station and Blok G has been inaugurated on Monday, October 15, 2018. It is recommended that routine checks are needed, the owner feels the need to conduct an Assessment on the bridge structure, so that the quality and capacity of the Tanah Abang Multipurpose Crossing Bridge (JPM) is now recognized. Because of this the owner also appointed PT. Graha Survey Indonesia to conduct an Assessment on the JPM Bridge, which includes Visual Test and Dynamic Loading Test.

The purpose of this structural testing work is to obtain detailed information about the condition of the structural elements of the inspection that occurred at JPM Tanah Abang and to get the results of the condition evaluation from the results of the special inspection conducted.

The objectives of this activity are:

• Obtain information on the condition of structural elements from special checks.
• Conduct an evaluation of the conditions of the results of special examinations conducted.
• Suggestions are based on the results of structural element testing.

PT.Pertamina (Persero), located in Balikpapan City, East Kalimantan Province, Indonesia, was formerly the State Oil and Gas Mining Company. PT.Pertamina is a BUMN that is tasked with managing Oil and Gas Mining in Indonesia. Pertamina ranked 122nd in the Fortune Global 500 in 2013. Pertamina once had a monopoly on the establishment of gas stations in Indonesia, but the monopoly was abolished by the government in 2001. The company also operates 7 oil refineries with a total capacity of 1,051.7 MBSD, a petrochemical factory with total capacity of 1,507,950 tons per year and LPG plants with a total capacity of 102.3 million tons per year. Pertamina is a joint product of Pertamina and Permina which was established on December 10, 1957. This merger took place in 1968. PT.Pertamina (Persero) RU V Balikpapan has implemented an integrated management system such as ISO 9001, 14001, OHSAS 18001 and many other certifications . This was done by PT. Pertamina (Persero) in order to eliminate and minimize risk. Thus creating comfort and security in aspects of Quality Health, Safety, Security and Environmental (QHSSEE). PT Pertamina (Persero) in collaboration with the Directorate General of Training and Productivity Development of the Ministry of Manpower and the Government of East Kalimantan Province held a CSR (Corporate Social Responsibility) program in the form of training for 5000 local workers who have the potential to become prospective oil refinery development projects (Refinery Development Master Plan Program / RDMP) at Refenery Unit V Balikpapan, East Kalimantan. After RDMP, Balikpapan’s RU V processing capacity will increase 100,000 barrels of crude oil per day or increase 38 percent from the previous 260,000 barrels per day to 360 thousand barrels per day. RDMP Balikpapan will also increase gasoline production by 38 percent or 100,000 barrels per day while reducing imports by up to 20 percent. In addition, solar products increased by 23 percent or 30,000 barrels per day which simultaneously reduced the import portion by 17 percent, LPG increased by 800 percent or 930,000 tons per day, and produced propylene new products by 230,000 tons per year.

The purpose of the test is to obtain information about the actual condition of the existing jetty structural elements by conducting a visual inspection and special inspection. It is necessary to know the actual condition of the jetty structure after its service life as a reference for preliminary data and to obtain evaluations and recommendations for proper handling of the jetty structure based on the test results.

The purpose of this examination is to identify the actual structural conditions and elements of the Jetty. While the purpose of this activity is to get recommendations for proper handling of the building structure.

The objectives of this activity are:

• Obtain information on the condition of structural elements from visual inspection and special inspection.
• Conduct an evaluation of the condition of the results of visual inspection and special checks conducted.
• Suggestions and recommendations based on the results of structural element testing