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KARAKTERISTIK TEKNIS BETON DAN MORTAR MENGGUNAKAN PASIR BONDO HITAM DAN BONDO MERAH Pagut, Adhytius H.; Karels, Dolly W.; Hunggurami, Elia
Jurnal Teknik Sipil Vol 6, No 1 (2017)
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Constructions in East Manggarai and Manggarai use the dunes as fine aggregate material in the manufacture of concrete and mortar. However the properties and characteristic of the sand is scientifically unknown, so it is necessary to do research on the study of the sandstechnical characteristics of concrete and mortar. The constructed by the quality plan: 17.5 MPa, 22.5 MPa, 30 MPa, while the mortar cube was constructed with variation of mix as follows 1Pcc:2Psr, 1Pcc:4Psr, 1Pcc:6Psr, 1Pcc:8Psr. The concrete strength test results demonstrate that the compressive strength of concrete using Bondo black and red sand ishigher for all quality of planned concrete, with the compressive strength as follows 19.08 MPa, 23.38 MPa, 31.65 MPa, 19.87 MPa, 24.91 MPa,32.10 MPa, compared to the concrete using Takari sand with the compressive strength only reached 18.74 MPa, 23.04 MPa, 31.14 MPa. Compressive strength test of mortar using Bondo black and red sand showed a higher strength with the compressive strength respectively as follows 33.44 MPa, 28.64 MPa, 25.20 MPa, 12.80 MPa, 34.32 MPa, 29.60 MPa, 26.24 MPa, 13.68 MPa, compared to the mortar using Takari sand which only reached 31.68 MPa, 28.08 MPa, 23.44 MPa, 10.96 MPa.

PERBANDINGAN PERSENTASE PENAMBAHAN FLYASH TERHADAP KUAT TEKAN BATA RINGAN JENIS CLC Bella, Rosmiyati A.; Pah, Jusuf J. S.; Ratu, Ariansyah G.
Jurnal Teknik Sipil Vol 6, No 2 (2017): Jurnal Teknik Sipil
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Penelitian ini bertujuan untuk mengetahui densitas, kuat tekan dan serapan pada bata ringan dengan menggunakan fly ash sebagai pengganti semen. Metode yang digunakan dalam penelitian ini adalah metode eksperimen dengan menggantikan semen dengan fly ash dengan variasi penambahannya sebesar 10% hingga 90% dari berat semen dengan kenaikan 10%. Pengujian kuat tekan dan densitas dilakukan pada masa perawatan bata ringan berumur 7, 21, dan 28 hari sedangkan pengujian serapan air dilakukan pada umur 28 hari. Kuat tekan maksimum berada pada variasi fly ash 10%, selama masa perawatan berturut-turut sebesar 0,633 MPa, 0,781 MPa, 0,819 Mpa dengan densitas selama masa perawatan berturut-turut sebesar 750,741 kg/m3, 664,444 kg/m3, 588,519 kg/m3 serta serapan air sebesar 26,256%. Untuk kuat tekan minimum bata ringan dihasilkan pada variasi fly ash 40% berturut-turut sebesar 0,485 MPa, 0,633 MPa, 0,670 MPa, dengan densitas selama masa perawatan berturut-turut sebesar 585,556 kg/m3, 566,296 kg/m3, 549,259 kg/m3 serta serapan air sebesar 38,184%. Variasi fly ash pengganti semen dengan kadar 50% ke atas mengalami gagal/pecah. Berdasarkan penelitian tersebut variasi fly ash sebesar 40% merupakan batas maksimum penambahan fly ash pada bata ringan CLC dikarenakan penambahan fly ash dapat berpengaruh terhadap kekuatan bata ringan itu sendiri akibat tidak adanya ikatan antar agregat. The objective of this research was to find out the density, compressive strength and absorption of lightweight brick by using fly ash as the substitute of cement. The method used in this research was experimental method by substituting cement with fly ash. The variations were 10% to 90% of cement weight with 10% increment. The compressive strength test was conducted when the lightweight brick was 7,21 and 28 days for the water absorption. The maximum compressive strength was achieved in the 10% of fly ash variation, during the treatment of 0,633 MPa, 0,781 MPa, 0,819 MPa with the density of 750,741 kg/m3, 664,444 kg/m3, 588,519 kg/m3 and 38,184% of water absorption. Whereas, the variation of 50% fly ash as the substitution of cement was failed or cracked. This research indicated that the 40% variation of fly ash was the maximum limit to be added to the CLC lightweight brick for the reason that the addition of fly ash could affect the strength of the brick as the consequence of the non-existent aggregate bonds.

CAUSES AND SOLUTIONS TO THE LACK OF WATER SUPPLY IN INDONESIAN URBAN Pah, Jusuf J. S.
Jurnal Teknik Sipil Vol 1, No 1 (2011)
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ABSTRACTThis study aimed at finding key factors which cause lack of water supply in Indonesianurban and develop the key factors which solve it. Relevant literatures bearing on theissue of urban water supply were studied. The city of Jakarta was taken asrepresentative of Indonesian urban. For the purpose of finding the causes anddeveloping the related solutions, relevant data bearing to the city’s water supply systemwere analysed. It was found that the lack of water supply in urban areas manifests in theexceeding of water demand over supply, low piped-water coverage, and intermittencyof water supply; whereas poor governance and low water tariff are the root factor whichcause them. Consequently good governance and higher water tariff were proposed asthe solutions to the problem. It also showed that the perception that urban poor cannotafford to pay water at full price, is but mythical.

KUAT TEKAN BETON NORMAL DAN MORTAR MENGGUNAKAN AGREGAT UMALULU Hunggurami, Elia; Bunganaen, Wilhelmus; Parimbaha, Mbulu
Jurnal Teknik Sipil Vol 7, No 2 (2018): Jurnal Teknik Sipil
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Beton dan mortar merupakan dua bahan yang memiliki peranan yang sangat penting dalam sebuah pekerjaan konstruksi. Beton merupakan bahan yang paling sering digunakan untuk pekerjaan konstruksi, seperti bahan pembentuk fondasi, kolom, balok dan pelat serta bentuk-bentuk struktur lainnya. Begitu juga dengan mortar yang sering dimanfaatkan sebagai plesteran dinding bangunan dan pengisi/spesi bangunan. Sungai Umalulu, Kecamatam Umalulu adalah salah satu tempat yang menyediakan agregat untuk pembangunan infrastruktur seperti jalan, bendungan dan perumahan di seluruh daerah Kabupaten Sumba Timur khususnya bagian selatan. Tujuan yang ingin dicapai dalam penelitian ini adalah untuk mengetahui kuat tekan beton dan mortar yang menggunakan agregat Umalulu, serta untuk mengetahui perbandingannya terhadap beton yang menggunakan agregat Takari.Benda uji beton yang digunakan berbentuk silinder dengan ukuran diameter 15 cm dan tinggi 30 cm. Nilai kuat tekan yang direncanakan sebesar 15 MPa dan 25 MPa. Benda uji mortar yang digunakan berbentuk kubus berukuran 5 x 5 x 5 cm dengan komposisi campuran untuk mortar 1PCC : 4Psr, 1PCC : 6Psr, 1PCC : 8Psr dan 1PCC : 10Psr. Waktu perawatan benda uji beton dan mortar adalah 28 hari.Kuat tekan beton yang menggunakan agregatUmalulu lebih rendah dari beton yang menggunakan agregat Takari pada berbagai variasi campuran dandemikian juga pada benda uji mortar, untuk semua variasi komposisi campuran Takari.Concrete and mortar are two ingredients that have a very important role in a construction work. Concrete is the most frequently used material for construction works, such as foundations, columns, beams and plates and other structural forms. Likewise, mortar is often used as a plaster for building walls and fillers of building species. Umalulu River, Umalulu district is one place that provides aggregate for infrastructure development such as roads, dams and housing in all areas of East Sumba regency, especially in the south. The aim of this research is to find out the compressive strength of concrete and mortar using Umalulu aggregate, and to ompare it to concrete using Takari aggregate. To test the concrete, a cylindrical object was used with a diameter 15 cm and a height 30 cm. The planned compressive strength value is 15 MPa and 25 MPa with a total of 18 test pieces. The object used to test the mortar were cubes measuring 5 x 5 x 5 cm with mixed composition for mortar 1PCC: 4Psr, 1PCC: 6Psr, 1PCC: 8Psr and 1PCC: 10Psr and total test specimens of 36 pieces. The concrete and mortar test objects were cured for 28 days. Concrete strength of concrete using Umalulu aggregate is lower than concrete using Takari aggregate on various mixed variations and likewise on mortar test specimens, for all variations of the composition of the Takari mixture

KAJIAN PERBAIKAN PATAHAN PADA RUNWAY Bolla, Margareth E.; Cornelis, Remigildus; Amtiran, Jelmi Y.
Jurnal Teknik Sipil Vol 2, No 1 (2013): Jurnal Teknik Sipil
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At the runway pavement of El Tari Kupang Airport, there was damage in the form of fracture that occurred at the edge of the pavement, which could disrupt aircraft traffic line. Due to the problem, the purposes of this research are to find out the cause of fracture, and to assess the reconstruction of the runway pavement that has been done by PT Angkasa Pura, Kupang. As the research conducted, it was found out that the cause of the fracture was more prevalent due to the lack of drainage system of the Airport. The slope of the runway shoulder was only 1.60% - 1.80%, was improper to the FAA minimum standard of slope that was 2.50% - 5.00%, and the unavailability of inlet pipes for subsurface drainage. The result of reconstruction done by PT Angkasa Pura has fulfilled the FAA standard. The total thickness of the reconstruction is 52.00 cm, is compliant with the minimum thickness of FAA standard 50.07 cm. However, the reconstruction of the pavement would be for short term solution only because of the poor drainage system of El Tari Kupang Airport has not been handled properly.

ANALISIS FAKTOR-FAKTOR PENYEBAB TERJADINYA KETERLAMBATAN PENYELESAIAN PEKERJAAN FISIK PADA PROYEK PNPM MANDIRI DI KOTA AMBON Leuhery, Lenora
Jurnal Teknik Sipil Vol 3, No 1 (2014): JURNAL TEKNIK SIPIL
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National Program for Community Empowerment (PNPM Mandiri) that have been implemented in the city of Ambon since 2007, is believed to have contributed greatly to the city government in reducing poverty and improving social welfare. But one of the problems that a lot happening in the field is the delay in the completion of physical work on PNPM Urban city of Ambon, which is not optimal impact on the work and impeding the implementation of PNPM Mandiri, especially in terms of physical work completion PNPM Mandiri. This study aims to analyze the factors that cause delays in the completion of the physical work on the project in the city of Ambon PNPM Mandiri. The analysis was performed on the questionnaire respondents were represented from all parties involved in the project, namely PNPM employer / government (the owner), executing the work / community directly (KSM) and the executive supervisor jobs / employment coordinator (BKM). Performed with SPSS data processing and concluded that the factors that influence the occurrence of delays in completion of the work is the physical aspect Inspection Systems, Control and Evaluation of Work (X5), reporting on the indicators work slow and incomplete, with the percentage of agreement value of the intensity scale and the scale of determine respectively are: intensity scale (BKM 93%; KSM 97%; owners 95%) and determine the scale (BKM 96%; KSM 98%, owner 96%).

PERENCANAAN TEKNIS JARINGAN PERPIPAAN AIR BERSIH DENGAN SISTEM PENGALIRAN POMPA DI DESA SUSULAKU A KECAMATAN INSANA KABUPATEN TIMOR TENGAH UTARA Tuames, Gaspar Y. K.; Bunganaen, Wilhelmus; Utomo, Sudiyo
Jurnal Teknik Sipil Vol 4, No 1 (2015): Jurnal Teknik Sipil
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Desa Susulaku A memiliki sumber air yang cukup memadai tetapi yang menjadi kendala adalah sumber mata air berada di bawah pemukiman warga sehingga diperlukan pompa untuk menaikan air ke pemukiman warga.Penelitian ini bertujuan untuk merencanakan jaringan perpipaan air bersih dengan sistem pengaliran pompa di Desa Susulaku A.Metode yang digunakan dalam perhitungan proyeksi jumlah penduduk menggunakan Metode Aritmatik, menghitung pertambahan jumlah fasilitas, serta perhitungan proyeksi kebutuhan air. Selanjutnya melakukan analisis hidrolis pada pompa dan jaringan pipa serta hal yang diperhatikan dalam sistem operasional dan pemeliharaan. Hasil proyeksi jumlah penduduk Dusun II Desa Susulaku A tahun 2023 adalah 631 jiwa. Besar kebutuhan air pada tahun rencana adalah 0,47 ltr/dtk. Debit Mata Air Oetak adalah 1,727 ltr/dtk. Jenis pipa yang digunakan adalah jenis pipa GIP,berdiameter pipa 2 inchi dan 2,5 inchi. Volume bak penampung mata air (BPMA) 14 m3, volume bak penampung (BP) 12 m3 dan volume hidran umum (HU) 10 m3. Spesifikasi pompa 65 x 50X2 - 5 15 dengan waktu beroperasi pagi hari 1 jam dan sore hari 1 jam. Teknis operasional menyangkut hal-hal teknik yakni rincian kebutuhan operasional dan pemeliharaan, pelaku dan keterampilan yang dibutuhkan. Organisasi pengelola terdiri dari struktur organisasi dan tata peran serta perkiraan biaya operasional dan pemeliharaan perbulan adalah Rp 2.347.300, sehingga tarif yang dikenakan adalah Rp 25.000/KK/bulan. The Susulaku A Village have adequate water source but the are some consentrain that is the water source is located under the citizen housing so to bossting up the water to citizen housing, the pump watering system is needed. The purpose of this research is to design the clean water pipeline network with pump watering system at Susulaku A village. The used method to calculating the projected of population amount is aritmatic method, calculating the increase amount of facility and also calculating the projected of the water requirement.. The next step is doing the Hydraulic Analyze of pump and pipeline network by considered the operation and maintenance system. The result of projected population amount in Area II of Susulaku A village in 2023 is 631. The number of water requirement based on the year plan is 0,47 liter/sec. Oetak spring debit is 1,727 liter/sec. The type of pipe in this research is GIP pipe with diameter 2,00 inch and diameter 2,50 inch. The spring basin volume (BPMA) is 14 m³, Basin volume (BP) is 12 m³, and volume public hydrants (HU) is 10 m³. The pump specification is 65 x 50X2 – 5 15 with operation time 1 hour in the morning and 1 hour in the afternoon. Operational technic are concern maintenance and operational requirement details, treatment and competent worker is also needed. The management organization consists of structural organization and the role arrangement and also projected of operational and maintenance finance is Rp.2.347.300, so the contribution charged is Rp.25.000/household/month.

ANALISIS RUAS JALAN RAWAN KECELAKAAN LALULINTAS MENGGUNAKAN SISTEM INFORMASI GEOGRAFIS Weo, Ronel V. S.; Bolla, Margareth E.; Messah, Yunita A.
Jurnal Teknik Sipil Vol 4, No 2 (2015)
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Tujuan dari penelitian ini adalah untuk mengetahui karakteristik ruas jalan yang teridentifikasi sebagai lokasi kecelakaanlalu lintas menurut data kecelakaan di kota Kupang, mengetahui lokasi ruas jalan rawan kecelakaan lalu lintasdi Kota Kupang, dan menyusun database kecelakaan berbasis Sistem Informasi Geografis di Kota Kupang. Analisis data kecelakaan tahun 2011 sampai 2013 untuk jalan arteri dan kolektor di kota Kupang menggunakan metode UCL (Upper Control Limit) dalam Quantum GIS Chugiak 2.4. Dari hasil analisis maka ruas jalan rawan kecelakaan yang di dapat adalah Jalan Timor Raya dengan fungsi jalan Arteri Primer, nilai APW (Accident Point Weightage) = 485 dan nilai UCL(Upper Control Limit) = 102.235, jalan Frans Seda dengan fungsi jalan Kolektor Primer, nilai APW (Accident Point Weightage) = 122.8 dan nilai UCL(Upper Control Limit) = 89.566, jalan Adi Sucipto dengan fungsi jalan Arteri Sekunder, nilai APW (Accident Point Weightage) = 94.4 dan nilai UCL(Upper Control Limit) = 88.009. Untuk database kecelakaan lalu lintas di kota Kupang tahun 2011 sampai 2013 dari Dirlantas Kota Kupang tersusun dalam interface program Arcview GIS 3.3, data kecelakaan yang dicatat bisa diinput kedalam interface dan menjadi satu kesatuan dengan informasi lain, seperti peta, hasil analisis dan hasil geometrik jalan. This study aims to determine the characteristic of the roads which were identified as the locations of traffic accidents, to know the accident-prone roads, and to compile a database of traffic accidents by using Geographic Information Systems (GIS), based on traffic accident data from years 2011 to 2013 in Kupang City. The traffic accident data analysis for arterial and collector roads were done using UCL (Upper Control Limit) method and processed by Quantum GIS 2.4 Chugiak program. The results showed that the accident-prone roads were: Timor Raya with the function of a primary artery road which had APW (Accident Point Weightage) value amounted to 485, and the value of UCL (Upper Control Limit) was 102,235; Frans Seda road with primary collector road function which had APW value amounted to 122,8 and UCL value = 89,566; Adi Sucipto with secondary arterial road function, APW value = 94,4 and UCL value = 88,009. Database of traffic accidents from years 2011 to 2013 were obtained from The Directorate of Traffic of Kupang City organized into ArcView GIS 3.3 program interface. The accident data obtained were inputted into the interface and be integrated with other information, such as maps of the area and the road network, data of road geometric inventory, and the results of the analysis of traffic accidents.

IDENTIFIKASI KUAT ACUAN TERHADAP JENIS KAYU YANG DIPERDAGANGKAN DI KOTA KUPANG BERDASARKAN SNI 7973:2013 Hunggurami, Elia; Utomo, Sudiyo; Messakh, Beddy Y.
Jurnal Teknik Sipil Vol 5, No 2 (2016): JURNAL TEKNIK SIPIL
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According to results of the test, quality code of each woods is: Timber = E14, Spinach = E14, Red Teak = E12, Candlenut wood = E10 and Cassowary = E15.The compressive strength perpendicular to the wood fibers: Timber= 23,00 MPa, Spinach = 31,00 MPa, Teak Red = 9,67 MPa, Candlenut= 8.67 MPa and cassowary= 21,67 MPa. The compressive strength parallel to the wood fibers: Timber = 70,33 MPa, Spinach = 79,33 MPa, Teak Red = 36,00 MPa, Candlenut= 26,00 MPa and cassowary = 50,00 MPa. Value bending strength of wood: Timber= 132,06 MPa, Spinach= 174,66 MPa, Teak Red= 59,64 MPa, Candlenut= 51,12 MPa and cassowary= 110,76 MPa. The percentage value of compressive strength test comparison between the wood fibers parallel investigation against SNI 7973: 2013: Timber= 164,01%, Spinach= 197.80%, Teak Red= 59.57%, Candlenut= 57.00% and Cassowary= 73,61%. Value percentage ratio of compressive strength test perpendicular to the wood fibers are examined against SNI 7973: 2013: Timber= 365.29%, Spinach= 527,12%, Teak Red= 131,54%, Candlenut= 143,64% and Cassowary= 479,20%. Percentage value comparison test between the flexural strength of the wood studied the SNI 7973: 2013: Timber= 312,64%, Spinach = 445,74%, Teak Red = 121,51%, Candlenut= 154,76% and Cassowary= 215.99%.

KELAYAKAN PASIR KALI MAS SEBAGAI AGREGAT HALUS PADA CAMPURAN BETON DAN MORTAR Hunggurami, Elia; Utomo, Sudiyo; Resi, Aristofel R.
Jurnal Teknik Sipil Vol 6, No 2 (2017): Jurnal Teknik Sipil
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Perkembangan daerah yang sejalan dengan perkembangan pembangunanterus meningkat sehingga kebutuhan material untuk pembangunan juga meningkat. Pembangunan di daerah – daerah berkembang masih menggunakan beton sebagai bahan konstruksi. Kebutuhan akan material beton sangatlah tinggi sehingga perlu adanya eksplorasi tempat baru.Masyarakat pada kecamatan Fatuleu Barat mengambil pasir pada Kali Mas untuk dijadikan sebagai material pembangunan konstruksi beton karena jarak pengambilan pasir lebih dekat dibandingkan dengan pengambilan dari quarry Takari. Tujuan penelitian untuk mengetahui kuat tekan beton dan mortar menggunakan pasir Kali Mas dibandingkan dengan pasir Takari. Benda uji beton yang dipakai berbentuk silinder 15 x 30 cm dengan mutu rencana 15 MPa dan 25 MPa dengan durasi curing 7, 14dan 28 hari. Sedangkan mortar berbentuk kubus berukuran 5 x 5 x 5 cm dengan komposisi campuran 1Pcc : 2Psr, 1Pcc : 4Psr, 1Pcc : 6Psr dan 1Pcc : 8Psr dengan durasi curing 3,7, 21 dan 28 hari. Berdasarkan hasil pengujian kuat tekan beton dan mortar yang menggunakan pasir Kali Mas lebih besar dari pada menggunakan pasir Takari. The growth of regions which is in step with the establishment progress continuous to increase so material requirements for construction has also been increasing. Development in developing areas still uses concrete as a construction material. The need for concrete material is so high same needing for exploration of new places. Communities in Fatuleu Barat Subdistrict took sand from Kali Mas serve as construction concrete material because the distance was closer than taking from quarry Takari. The purpose of this research is to find out compressive strength of concrete and mortar using Kali Mas sand compared with Takari sand. The object that used for the manufacture of concrete cylinder measuring 15 x 30 cm with a quality planned is 15 MPa and 25 MPa with 7, 14 and 28 days of curing duration. While the object which is used to make manufacture of mortar cube measuring 5 x 5 x 5 cm with a mixed composition 1 pcc: 2 psr, 1 pcc: 4 psr, 1 pcc: 6 psr and 1 pcc: 8 psr with duration of curing 3, 7, 21 and 28 days. Based on concrete strength test result with mortar that use Kali Mas sand greater than using Takari sand.

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Kota kupang,

Nusa tenggara timur

INDONESIA