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Jurnal Riset Rekayasa Sipil

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Published by Universitas Sebelas Maret

ISSN : 25797999 EISSN : - DOI : -

Core Subject : Social, Engineering,

Civil Engineering, Building, Construction & Architecture Engineering Environmental Science

The Journal of Research and Civil Engineering is a journal to accommodate the writings of researchers and professionals in the field of civil engineering.

Arjuna Subject : -

Articles 6 Documents

Search results for , issue "Vol 4, No 1 (2020): September 2020" : 6 Documents clear

ANALISIS POLA OPERASI WADUK SANGIRAN Rifki Maulana; Rr Rintis Hadiani; Cahyono Ikhsan
Jurnal Riset Rekayasa Sipil Vol 4, No 1 (2020): September 2020
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

Dam is a reservoir that is needed to save water so that it can be used at the time needed both for irrigation, hydropower, and tourism. One of the Functional Dam in Indonesia is the Sangiran Dam. Sangiran Dam is located in Sumber Bening Village, Bringin District, Ngawi Regency, East Java Province. The Sangiran Dam is equipped with an overflow ogee crest type overflow building with side channels. Sangiran Dam gate type is slide gate with automatic operation using electric generator. The reservoir, which was operated starting in 2000, is designed to meet the needs of a plantation area of 1535 ha. However, in the operation that is needed in meeting the needs of irrigation air needs to be done in research the current operating patterns of the operating patterns that have been designed at the time of the reservoir design to compile an operating pattern that can meet water needs, at this time, looking for a relation between the elevation of reservoir water levels with an outflow discharge coming out of the reservoir. Based on the results of the analysis conducted on the current operating patterns are not in accordance with the pattern of initial design operations with an average deviation of 51.78% per year. This research is being carried out to analyze the optimal operating patterns of the Sangiran Dam and / or possible operating patterns in meeting water needs in the following years.

PENGARUH JARAK TERHADAP INTERVAL WAKTU PERUBAHAN SUHU PERMUKAAN BETON PADA UJI THERMOGRAPHY AKTIF Suyadi K K; Herlien D Setio; Adang S; Ediansjah Z
Jurnal Riset Rekayasa Sipil Vol 4, No 1 (2020): September 2020
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

Concrete surface temperature changes on active thermography testing process using a halogen lamp will occur in a relatively short time. These changes are very useful in the image interpretation process which relies on changes in thermal contrast to determine the internal conditions of reinforced concrete. This research aims to determine the time interval dominance concrete surface temperature changes due to changes in object distance to the heat source as the excitation source of heat. Tests carried out in the room, so that the concrete surface temperature changes due to the effects of wind are considered small. Measurement of the temperature of the concrete surface due to the heating and cooling process using thermocouples and thermography methods. Halogen lamps are used as a source of heat excitation placed at various distances (dobj), namely 20 cm; 30 cm and 40 cm. The distance between the halogen lamp axles in this study was 30 cm. The dimensions of the test object were used 10 cm x 10 cm x 15 cm with a concrete quality of 20 MPa. The frequency percentage is analyzed according to the amount of data with the same time interval for the change in surface temperature at each distance of the specimen from the heat source. The results showed that the change in the distance of the specimen to the heat source up to 40 cm had a quite small difference, but the increase in the distance between the test object and the heat source tended to decrease the dominance of changes in the temperature of the concrete surface. The average dominance of changes in the temperature of the concrete surface is almost above 75% of the temperature change occurs at the smallest interval of the measuring instrument used, namely 1 second using a thermocouple and 0,133 seconds using the thermography method. The highest percentage shows that changes in surface temperature often occur in the range of time intervals. So based on this analysis without reviewing aspects of the distribution pattern of the data, can be concluded that the surface temperature testing of concrete by using active thermography in the room had to use measuring devices that can record temperature changes every interval of 0.133 seconds. This shows that the change in the temperature of the concrete surface during active thermography testing, the setting of the test instrument for measuring temperature changes is used in that time interval.

KAJIAN KARBONASI PADA BETON MUTU TINGGI MEMADAT MANDIRI DENGAN VARIASI KOMPOSISI METAKAOLIN Wibowo Wibowo; Endah Safitri; Delista Putri Deni
Jurnal Riset Rekayasa Sipil Vol 4, No 1 (2020): September 2020
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

The construction industry is an important thing to support the development of a country. In concrete construction, quality, strength, and durability of concrete are the main requirements of all. In urban tropical countries, carbonation is one of the essential factors that affect the durability of concrete, and it may cause corrosion of reinforced steel in concrete. Therefore, high strength self-compacting concrete may be expected as the solution, improved by pozzolanic additions, metakaolin with substitution dosage at 10%; 12,5%; 15%; 17,5%; and 20%. This study purposed to determine the effect of metakaolin and its optimum dosage to improve high strength self-compacting concrete quality on its carbonation rates. This study was done by using experimental methods. It needs a plain cylindrical concrete with 75 mm diameter and 150 mm height, and testing by SNI 03-6468-2000, EFNARC 2002, and SEM-PUPR 25-2015. The carbonation test is done using accelerated laboratory carbonation in Structures and Materials Laboratory, Faculty of Engineering, Universitas Sebelas Maret by soaking the specimens in a 4% carbonate solution for 15 days, 37 days, and 51 days, proceeded by splitting using CTM, and spray it using a 1% phenolphthalein indicator to determine its carbonation depth. Based on the results, metakaolin might improve concrete quality by reducing its carbonation rates by 15% substitution dosage of cement content, with a nominal atmospheric carbonation coefficient 3,71 mm/year½, reduced 44,41% from HSSCC without metakaolin substitution. Metakaolin addition might reduce fresh concrete's workability and fulfill self-compacting concrete requirements specified by EFNARC 2002.

KONSEP WALKABILITY INDEX DAN PENANGANAN FASILITAS PEJALAN KAKI PADA KAWASAN JALAN PERKOTAAN DI INDONESIA Dwiky Erlangga; Dewi Handayani; Syafi'i Syafi'i
Jurnal Riset Rekayasa Sipil Vol 4, No 1 (2020): September 2020
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

Walkability Index (WI) is a method to assess the walkability level on pedestrian facilities with the main components of: safety and security, convinience and attractiveness, as well as government policies. Generally, this method is utilized to review the pedestrian facilities walkability in urban areas, particularly in CBD (Central Business District) which is the hub for activities center, such as economic, business, education, healthcare, transit to tourism areas. The rapid development of activities leads to the increasing number of visitors in those areas, such as on Jalan Slamet Riyadi, Surakarta. This condition needs to be balanced with the availability of adequate facilities and infrastructure, one of them is the sidewalks to facilitate the pedestrian movement from one place to another. Indonesia did not have any assessment criteria for sidewalks in terms of scoring even though some variables on WI have already existed in the Circular Letter of the Minister of Public Works and Public Housing 02/SE/M/2018 on the Guidelines for Pedestrian Facility Planning. This paper presents the recommendation of assesment and category based on the regulation in Indonesia. It is expected to benefit the determination of priority on pedestrian facility handling in the field. Literature study as the foundation of this paper attempts to accomodate the pedestrian facility variables contained in the regulation of Indonesia using the scoring method with several recommendations in the category of handling, with the basis of WI analysis method. The results of the analysis show that there are 3 variables that need to be considered more in the planning criteria for sidewalk in Indonesia that affect the determination of handling recommendation including the supporting and additional facilities, facilities for disabled pedestrians, and the needs of wide space for pedestrians.

ANALISIS PENGARUH BIJI KARET TERHADAP KUAT TEKAN BETON Fadhila Firdausa; Raja Marpaung; Sri Rezki Artini; Annadiyah Farah Diba; Vicky Wisma Ria; Arista Widya Iryani
Jurnal Riset Rekayasa Sipil Vol 4, No 1 (2020): September 2020
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

The development of technology construction has reached a period of caring for the environment. Many things been developed to support environmentally friendly construction. Itcan be started from the use of a mixture of natural ingredients into a mixture of construction materials. Concrete is a construction material that is often used in Indonesia, given its ease, price, and durabilityAlong with the development of the concrete periods has experienced many advances, one of which is in the drafting of a combined mix of making concrete, and to supporting environmentally friendly concrete, a mixture of natural materials are used as one of the making material of concrete.South Sumatra is one of the islands in Sumatra, which has an abundant plantation of rubber. The large number of rubber plantations makes rubber waste more and more, one of which is rubber seeds. Therefore it is necessary to treat rubber seed waste in order to reduce the amount of rubber seed waste and can be used to improve the economy of the surrounding community. The rubber itself has many advantages in the industrial field. Utilization of rubber has been widely used, but no one has used rubber seeds as an aggregate substitution material in making a concrete without other chemicals. Therefore this research will discuss the rubber seed mixture as a substitute for coarse aggregate. The material used to make concrete is portland type I cement, coarse and fine aggregate from the Tanjung Raja area, and the rubber seeds used are from the Sembawa area. Coarse aggregate substitution using a mixture of rubber seeds 5%, 10%, 15%, and 20% were tested during the age of concrete of 7 days, 14 days, and 28 days.. The compressive strength of rubber seed substitution with a percentage of 5% shows the most significant compressive strength value of 19.33 Mpa. From the test results of this study it can be concluded that the greater the use of rubber seeds, the lower the compressive strength.

ANALISIS PERBANDINGAN DAYA DUKUNG PONDASI TIANG PANCANG BERDASAR HASIL UJI SPT DAN PENGUJIAN DINAMIS Hinawan Teguh Santoso; Juandra Hartono
Jurnal Riset Rekayasa Sipil Vol 4, No 1 (2020): September 2020
Publisher : Civil Engineering Study Program, Engineering Faculty Universitas Sebelas Maret

The foundation work is one of the main works in bridge construction. Failure of the foundation will be fatal for the entire bridge construction. Therefore, it is necessary to test the bearing capacity of the pile to determine the installed foundation capacity. The most accurate and most expensive method for determining the bearing capacity of a pile is a static load test, which is a full-scale trial method of giving a load 2 or 3 times greater than the designed load. Another method that is more economical and entirely accurate is using the High Strain Dynamics Pile Test (HSDPT) or often called the Pile Driving Analyzer (PDA) Test. This PDA test took a sample of 18 points of 600 mm diameter pre-stressed concrete piles on the Kaligawe Bridge located on Jalan Kaligawe KM 2+350, Semarang, Central Java. Based on the core drilling results, the soil layer was dominated by clay with an N-SPT value < 30 to a depth of 45 meters. The average bearing capacity of PDA test results is 432.4 tons or 0.4% greater when compared to the empirical approach based on N-SPT value (430.7 tons). The bearing capacity of the CAPWAP analysis is 401.0 tons or 7.3% less when compared to the PDA test, because the PDA test results are further processed using Signal Matching Analysis (SMA). CAPWAP analysis shows that the bearing capacity of piles is dominated by friction resistance by 71.7% and end resistance by 28.3% or by 4.4% difference when compared to the empirical approach, where the friction resistance value is 67.3% and end resistance is 32.7%. In general, it can be said that the PDA test is reliable enough to confirm the bearing capacity of the pile foundation that has been installed in the field.

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Iva Yenis Septiariva

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Iva Yenis Septiariva

Contact Email ivayenis@staff.uns.ac.id

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Journal Mail Official jurnalsipil@ft.uns.ac.id

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Location Kota surakarta, Jawa tengah INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Iva Yenis Septiariva

Contact Email
ivayenis@staff.uns.ac.id

Phone
-

Journal Mail Official
jurnalsipil@ft.uns.ac.id

Editorial Address
-

Location
Kota surakarta,

Jawa tengah

INDONESIA