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All Journal JeLAST : Jurnal Teknik Kelautan , PWK , Sipil, dan Tambang Jurnal Teknik Sipil Journal of Mathematical and Fundamental Sciences Journal of Engineering and Technological Sciences Portal: Jurnal Teknik Sipil Chalim Journal of Teaching and Learning Realism: Law Review ILJ: Islamic Learning Journal
Herwani .
JurusanTeknik Sipil Universitas Tanjungpura, Pontianak
Religion Astronomy Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics

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STUDI EKSPERIMENTAL BETON ADUKAN KERING DENGAN METODE PENGECORAN PIPA BERKATUP PADA AIR LABORATORIUM Akbar, Ali; ., Herwani; handalan, Cek putra
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 2, No 2 (2015): JURNAL MAHASISWA TEKNIK SIPIL UNTAN EDISI JUNI 2015
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (437.079 KB) | DOI: 10.26418/jelast.v2i2.12028

Abstract

This paper presents the results of an experiment on the casting by pouring into a mold with a confused puddle varies is 25%, 50%, 75%, 100% and 120% of the height of the mold. Specimens made ​​with a cylindrical Æ 15 cm, and 30 cm high. Order to determine the compressive strength and influence on the amount of standing water on the formwork (cylinder). Testing include compressive strength test. In the manufacture of test specimens used methods namely ACI method. Quality concrete is planned fc '= 25 MPa. From the experimental results obtained values ​​Normal Concrete compressive strength characteristics without puddles of 21.14 MPa and the concrete variables in consecutive puddles 6.18 MPa; 2.73 MPa; 2.42 MPa; 2.42 MPa and 1.89 Mpa. When compared with normal concrete without flooding a decline of 74.28%, 82.50%, 90.38%, 85.51% and 86.61%. Key words :compressive strength, concrete normal
STUDI EKSPERIMENTAL BETON ADUKAN KERING DENGAN MENGGUNAKAN METODE PIPA BERKATUP PADA AIR GAMBUT Sulung, Odie; ., Herwani; Supriyadi, Asep
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 3 (2015): JURNAL MAHASISWA TEKNIK SIPIL UNTAN EDISI DESEMBER 2015
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (904.384 KB) | DOI: 10.26418/jelast.v3i2.13549

Abstract

The development of increasingly advanced technology in all fields, including the field of construction. be it residential, office buildings, bridges, highways, dams, ports and so on. Effect of water level at the time of casting, often become problems and obstacles for planners in determining the characteristics of the concrete to be used in the construction. Investigators therefore conducted research to test specimens of concrete with compressive strength of concrete dried mortarusing peat water with the method of casting pipe with valves, where in the mold (cylinder) there are puddles of peat 50% of the mold, with a view to determine the compressive strength of concrete driedmortarand influence on the amount of peat puddles on the formwork (cylinder). In the manufacture of test specimens using ACI method of normal concrete with plan compressive strength of 25 MPa. Where cement, fine and coarse aggregates mixed with the water needs of normal concrete mix design. Casting method is done by pouring concrete into a mold to dry mixture contained 50% of the puddle prints.  15 cm, height 30 cm. Diamater Test objects are made cylindrical with  Testing / testing includes testing the compressive strength and modulus of elasticity test. As a comparison is made also samples of normal concrete and concrete dry peat water with direct pour pipe methods. From the research value of the concrete compressive strength of the dried mortar using peat water with a variable water level of 50% obtained average value of compressive strength characteristics - average 25 MPa for normal concrete, 11.06 MPa for dried concrete peat valves and 8.85 MPafor dry concrete without valve , Water uptake value per sample average is 16,5 %for dry concrete with pipes valves and 15,54 % for methods pipe without valve. Cement loses value the average per sample is 29% to methods of pipe valves and 31% for pipes without valves. Pattern collapse of the specimen on the waterlogged peat areas due to the binding material that is not perfect. Keywords: the amount of peat puddles, compressive strength, concrete mortar dry
STUDI EKSPERIMENTAL PENGARUH JUMLAH GENANGAN AIR GAMBUT TERHADAP KUAT TEKAN BETON ADUKAN KERING Santoso, Dwi; ., Herwani; Budi, Gatot Setya
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 2, No 2 (2013): Jurnal Mahasiswa Teknik Sipil Untan
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v2i2.2800

Abstract

Tulisan ini menyajikan hasil percobaan tentang pengecoran dengan menuangkanbeton adukan kering (f.a.s 0,3 dari kebutuhan air beton normal) kedalam cetakan yang terdapat genangan air gambutdengan tinggi bervariasi yaitu 25%, 50%, 75% dan 100% dari tinggi cetakan. Benda uji yangdibuat berbentuk silinder dengan 15 cm, dan tinggi 30 cm.Tujuan untuk mengetahui kuat tekan dan pengaruh terhadap tinggi genangan air gambutpada bekisting (silinder). Pengujian / pengetesan meliputi uji kuat tekan. Dalam pembuatan benda ujimetode yangdigunakan yaitu Metode ACI. Mutu beton yang direncanakanadalah fc?= 25 MPa. Dari hasil penelitian nilai kuat tekan rata-rata umur beton 28 hari beton adukan kering denganvariabel genangan air gambut, didapat nilai kuat tekan karakteristik 10,48 MPa ; 5,09 MPa ; 3,56 MPa ; dan2,40 MPa. Bila dibandingkan dengan beton normal air gambuttanpa genangan terjadi penurunan 56,70 % ; 78,50 % ; 81,94 % ;88,19 %. Kata-kata kunci: genangan, airgambut, kuat tekan beton, beton adukan kering
STUDI EKSPERIMENTAL PENGARUH JUMLAH GENANGAN AIR TERHADAP KUAT TEKAN BETON NORMAL CAMPURAN AIR GAMBUT Emilsyah, Bayu; ., Herwani; Mungok, Crisna Djaya
Jurnal Mahasiswa Teknik Sipil Universitas Tanjungpura Vol 1, No 1 (2013): Jurnal Mahasiswa Teknik Sipil Untan
Publisher : Jurnal Mahasiswa Teknik Sipil Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Karya ilmiah ini mempresentasikan hasil daripercobaan proses pengecorandengan menuangkan adukkan beton kedalam cetakan yang tergenangi air denganbervariasi yaitu dari 25%, 50%, 75%, 100% dan 120% dari tinggi cetakan. Benda uji yang dibuatberbentuk silinder 15 cm, dan tinggi30 cm. Tujuan penelitian ini untuk mengetahui pengaruhgenangan air tersebut terhadap kuat tekan karakteristik beton. Pengujian meliputi uji kuat tekan. Penentuan campuran beton menggunakanMetode ACI. Mutubeton yang direncanakan adalah fc? = 25 MPa. Darihasil percobaan didapat nilai kuat tekan karakteristik Beton Normaltanpa genangan sebesar 21,14 MPa dan Beton dengan variabel genangan air secaraberturut turut sebesar 6,18 MPa; 2,73 MPa; 2,42 MPa,;2,42 MPa dan 1,89 Mpa.Bila dibandingkan dengan beton normal tanpa genangan terjadi penurunan sebesar 27,03% ; 76.36% ; 83,92% ; 86.69% ; 87,70 dan91,16%. Kata-kata kunci: pengaruh genangan, kuat tekan, beton normal
PENGUJIAN SIFAT MEKANIS BATAKO PEJAL MENGGUNAKAN GABUS KELAPA DENGAN VARIASI VOLUME GABUS 10%, 15%, 20% DAN 50% ., Arfan; ., Herwani; Supriyadi, Asep
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 1, No 1 (2015): JURNAL MAHASISWA TEKNIK SIPIL UNTAN
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v1i1.10504

Abstract

Concrete brick is one infill material made from a mixture of cement, sand, with or without added ingredients and a little water. The amount of waste oil cork unprocessed as possible in the area of Pontianak in West Kalimantan have spawned an idea to use it as an ingredient added in a mixture of solid brick, with the consideration that it will produce a lighter brick and relative quality equivalent to regular brick. So the research must be done to achieve that purpose. The composition of the mixture used in this study were 1 pc : 6 ps with the use of cork coconut variation of 10%, 15%, 20% and 50% of the volume of concrete brick. Stirring is done manually and printing using solid brick mold dimension of 10 cm x 20 cm x 40 cm. compressive strength test performed at the test specimen was 3, 7, 14 and 28 days. The test results showed that the use of cork coconut as an ingredient added in a mixture of brick causes decreased reach 2,127 MPa; 1,302 MPa; 0.901 MPa and 0.109 MPa. While heavy concrete bricks also decreased reached ,3 kg/m3; 1473,7 kg/m3; 1411,4 kg/m3 dan 832 kg/m3. Mean while, according to SK SNI 03-0349-1989 compressive strength of solid brick average of 2.5 MPa, under of 2.5 MPa, the brick does not meet the standards. Keywords: solid brick, Materials Cork Add coconut, and Compressive Strength.
STUDI EKSPERIMEN BETON TANPA PASIR DENGAN TIGA FAKTOR AIR SEMEN MENGGUNAKAN JENIS SEMEN PCC ., Manah; Mungok, Chrisna Djaya; ., Herwani
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 2, No 2 (2014): Jurnal Mahasiswa Teknik Sipil UNTAN
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v2i2.7630

Abstract

Hollow concrete is the  concrete without sand to the constituent material consisting of coarse aggregate , cement and water .In this study, a coarse aggregate of crushed stone and cement Portland Cemen Composite (PCC) . In the manufacture of test specimens were used that method Modified ACI method then planned factor that varies the Water Cement 0.4 , 0.6 , and 0.8 . Specimens made ​​cylindrical with Æ 15 cm , and 30 cm high . Testing / testing only large compressive strength tested. From the results of the examination and calculation of compressive strength of concrete is affected by FAS 0.8 , 0.6 , and 0.4 . each produce characteristic concrete compressive strength of 5.419 MPa , 12,110 MPa , 29,303 MPa. Slump obtained using 3 variations of FAS are: 9 cm , 10 cm , and 10 cm . Average volume weight - average age of 28 days resulted in different variations - different , namely : 2,196,456 kg /m3; 2,286,325 kg /m3 , 2,379,965 kg / m3 . Price - the price the lower the FAS showed that the higher the compressive strength of concrete characteristics and the higher the volume gained weight Keywords: Concrete without sand, water cement factor (FAS) , compressive strength , Slump , Heavy volume
STUDI EKSPERIMENTAL PENGARUH JUMLAH GENANGAN AIR TERHADAP KUAT TEKAN ADUKAN BETON SEGAR Wijayadi, Udi; Mungok, Chrisna Djaya; ., Herwani
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 1, No 1 (2013): Jurnal Mahasiswa Teknik Sipil Untan
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v1i1.2310

Abstract

Tulisan ini menyajikan hasil percobaan tentang pengecoran adukkan beton kedalam cetakan dengan variabel genangan air 25%, 50%, 75% dan100% dari benda uji yang berbentuk silinder dengan 15 cm, dan tinggi 30 cm. Mutubeton yang direncanakan adalah fc? = 25 MPa yang menggunakan Metode ACI. Pengujian / pengetesan meliputi uji kuat tekan. Dari hasil penelitian nilai kuattekan karakteristik Beton Normal tanpa genangan adalah 28,644 MPa sedangkan kuattekan Beton Segar variabel genangan air 25%, 50%, 75% dan 100% diperoleh nilai kuat tekan karakteristikberturut-turut ialah 9,09 MPa; 4,02 MPa; 3,41MPa, dan 1,94 Mpa. Bila dibandingkan adukan beton segar genangan dengan beton normal tanpa genangan terjadi penurunan Kuat tekan karakteristik sebesar 63,21% untukkondisi 25%, 80,66% untuk kondisi 50%, 84,72% untuk kondisi 75% dan 86,98%untuk kondisi 100%.Kata-kata kunci: pengaruh genangan, kuat tekan, beton segar dengan fas 0,30
STUDI EKSPERIMENTAL PROPORSI CAMPURAN FERROSEMEN UNTUK PELAT FONDASI KEDAP AIR Pradewa, Gagas Bagus; ., Elvira; ., Herwani
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 3, No 2 (2014): VOL 3 NO 2 DESEMBER 2014
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v3i2.8972

Abstract

Terdapatperbedaanpadamutubetonantarabeton normal tanpazataditifdanbeton yang diberizataditif.Tujuanpenelitianiniuntukmengetahuiproporsicampuran yang baikuntukpembuatanpelatferrosemenkedap air.Pengujiandilakukandengancaraujikedap air normal dankedap air agresifterhadapbendaujisilinderdengan diameter 15 cm dantinggi 30 cm, sertaujikorositerhadapbendaujipersegidengandimensi 4 cm x 4 cm x 20 cm. Benda ujiterbagimenjaditigajeniskelompok, yaitukelompokbendaujitanpazataditif, kelompokbendaujidengantambahanzataditifpolcon, dankelompokbendaujidengantambahanzataditif tam. Hasilpenelitianmenunjukkanbahwapenambahanzataditifmampumeningkatkankuattekanbetondanmeningkatkansifatkedap air betontersebut.Padahasilujieksperimentaldenganpembandingberupabendaujisilindertanpazataditif, menghasilkanpeningkatankuattekandenganpenambahanzataditifpolconsebesar 10,06% danuntukbendaujisilinderdenganpenambahanzataditif tam sebesar 13,50%. Besarresapan air padabetontanpazataditifadalah 3,61%, sedangkanbetondenganpenambahanzataditifpolconsebesar 3,74%, danbetondenganpenambahanzataditif tam sebesar 3,31%. Seluruhbendaujisilinderbetonmemenuhisyaratbataspengukurankedap air normal yaituresapansebesarkurangdari 6,5%. Dalamnyapenetrasi air padabetontanpazataditifberkisar 1,0 – 3,5 cm sehinggatergolongkedap air agresifsedang. Sedangkandalamnyapenetrasi air padabetondenganpenambahanzataditifpolconberkisar 1,0 – 2,5 cm danbetondenganpenambahanzataditif tam berkisar 0,5 – 2,0 cm sehinggatergolongagresifkuat. Padapengujiankorosi, seluruhkelompokbendaujimampumemproteksitulangansehinggatulangantidakmengalamikorosidenganempatjenisperlakuan, yaitubendaujitidakdirendam, direndamkedalam air tawar, direndamkedalam air asin, dandirendamkedalam air gambutselama 4 bulan. Sehinggasecarakeseluruhan, ketigajeniskelompokbendaujiiniterbuktimemilikisifatkedap air. Kata-kata kunci: proporsicampuran, kedap air, zataditif
STUDI BIO ADMIXTURE UNTUK BAHAN MORTAR MUTU NORMAL Factsah, Randy; Mungok, Chrisna Djaya; ., Herwani
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 1, No 1 (2013): Jurnal Mahasiswa Teknik Sipil Untan
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v1i1.2305

Abstract

Tulisan ini menyajikan hasil percobaan bahan tambah albumin yang dicampurkan kedalam adukan mortar dengan jumlah yang bervariasi yaitu 0%, 3%, 6% dan 9 %. Benda uji yang dibuat berbentuk kubus dengan ukuran 5cm x 5 cm x 5cm. Bertujuan untuk mengetahui pengaruh albumin terhadap kuat tekan mortar berdasarkan fungsi umur. Pengujian / pengetesan meliputi uji kuat tekan dengan menggunakan standar pengujian SNI 03-6825-2002. Job mix formula mengacu pada perbandingan semen terhadap agregat halus (pasir) yaitu standar ASTM C 109 / 109M-02. Dari hasil penelitian nilai kuat tekan rata-rata umur 28 hari mortar normal dengan varian penambahan albumin (0%, 3%, 6% dan 9 %), terjadi penurunan bila dibandingkan dengan mortar normal. Kuat tekan karakteristik masing-masing varian benda uji umur 28 hari berturut-turut hanya mencapai (28,773Mpa; 26,773 MPa; dan 19,440MPa) sedangkan kuat tekan mortar normal mencapai 30,323MPa.Kata kunci : Mortar , Bahan tambah Albumin, Kuat Tekan
PENGUJIAN SIFAT MEKANIS BATAKO PEJAL DENGAN SERAT KELAPA DENGAN VARIASI 1,5 CM, 2 CM DAN 2,5 CM ., Samsul; ., Herwani; Supriyadi, Asep
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 2, No 2 (2015): JURNAL MAHASISWA TEKNIK SIPIL UNTAN EDISI JUNI 2015
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v2i2.10797

Abstract

Brick is an infill material made from a mixture of cement, sand, with or without added ingredients and water. The amount of coconut fibers waste that has not been processed maximally the area of ​​Pontianak, West Kalimantan Province lead to an idea to use it as an ingredient in a mixture of brick. With theat consideration it will produce bricks that are addet material bricks, this research is purposed for that. The composition of the mixture used in this study are 1 pc: 6 ps with coconut fiber length variation of 1.5 cm, 2 cm and 2.5 cm of brick volume. Mixing done manually and moulding using solid brick mold dimension of 10 cm x 20 cm x 40 cm. Compressive strength testing is done at the time of the test specimen was 3, 7, 14 and 28 days. The test results showed that the addition of coconut fiber with fiber length of 2 cm and a percentage of fibers 10% of the volume of concrete brick, generating a maximum compressive strength of 4.210 MPa in comparison with other variations. The value increases in the ratio of compressive strength of concrete blocks over 17.389% of normal brick
Co-Authors Ajmal Ramadhany Ali Akbar Andreas, Ricky Arfan ., Arfan Arisia Novita Aryanto Aryanto Asep Supriyadi B. Budiono Bambang Budiono Bambang Budiono Bayu Emilsyah Bin Ilias, Mohd. Faeez Cek Putra Handalan, Cek Putra Chrisna Djaya Mungok Crisna Djaya Mungok DWI SANTOSO Ediansjah Zulkifli Eka Priadi Elsa Tri Mukti Elvira . Elvira Elvira Elvira Elvira Faisal Faisal Faisal Faisal Gagas Bagus Pradewa Hermanus, Hermanus Insan Ari Maulana Iswadi Iswadi Iswandi Imran Ivindra Pane Jacob Hasiholan Hutajulu Kardianto, Arie Lucky Nur Syavanka Lusiana Lusiana Manah . MUHAMMAD YUSUF Naufal Fitrahaldi Nurhayati Nurhayati Odie Sulung, Odie Parabi, Ashraf Dhowian Rafie Rafie Randy Factsah Salsabila, Putri Najwa Samsul Sonny Franata Syahmil, Muhammad Tansetiadi Sutiono Ubabuddin, Ubabuddin Udi Wijayadi Usman Yasin Z, Yosafat