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PEMBUATAN BIOPORI SEBAGAI UPAYA PENINGKATAN LAJU INFILTRASI DAN CADANGAN AIR TANAH SERTA PENGENDALIAN BANJIR Arif Hidayat; Mochamad Agung Wibowo; Jati Utomo Dwi Hatmoko; Frida Kistiani; Ferry Hermawan; Satria Sentik Herman Merukh; Moammar Zachari
Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Vol 3, No 3 (2021)
Publisher : Fakultas Teknik Universitas Diponegoro

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Abstract

Perubahan iklim global yang terjadi saat ini sangat mempengaruhi lingkungan hidup manusia, hal ini juga mempengaruhi perubahan karakteristik iklim atau cuaca, halmana durasi musim hujan kadang memasuki pada musin kemarau / panas demikian juga sebaliknya, secara umum durasi musim hujan makin pendek, sebaliknya durasi musim kemarau makin panjang. Jumlah hari hujan cenderung semakin menurun, sementara hujan harian maksimum dan intensitas hujan cenderung semakin meningkat. Banyaknya lahan hijau yang berubah menjadi bangunan atau permukaan tanah yang tertutup akan mengakibatkan semakin meningkatkan limpasan air permukaan juga berakibat pada menurunkan resapan air ke dalam tanah. Kecamatan Tembalang merupakan salah satu wilayah di Semarang yang mengalami pesatnya pembangunan, hal ini bermula dari berdirinya kampus Universitas Diponegoro, kelurahan Bulusan merupakan salah satu wilayah yang terdampak akan hal tersebut, untuk itu maka tim pengabdian kepada masyarakat dari Teknik Sipil melakukan kegiatan Sosialisasi dengan pembuatan Biopori di wilayah tersebut sebanyak 24 buah biopori. Pelaksanaan kegiatan dilakukan di RW. V (RT.01, RT.02, RT.03 dan RT.04), diharapkan dengan diberikan bantuan pemasangan biopori beserta sosialisasi kepada masyarakat dapat meningkatkan semangat untuk melakukan swadaya di lingkungan rumah masing-masing, sehingga bisa memberikan dampak yang baik dalam mengatasi permasalahan banjir dan cadangan air tanahnya.
Pengaruh Kadar Air Optimum dengan Variasi Kepadatan terhadap Potensi dan Tekanan Mengembang pada Tanah Ekspansif Bambang Pardoyo; Arif Hidayat
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 14, Nomor 2, Edisi XXXV, JUNI 2006
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (278.277 KB) | DOI: 10.14710/mkts.v14i2.2092

Abstract

This  research is purpose to know about the related between water content and compacted of expansive soil from potential swell and pressure swell. Water content is divided to seven part : OMC-15%, OMC-10%, OMC-5%, OMC, OMC+5%, OMC+10%, and OMC+15%.. Meanwhile the compacted is divided to amount of blow from each layer in standard mold of Proctor. An each layer is given 15x, 25x, 35x, and 55x blows. The result of the research is  the try of high increased compaction so potential swell and pressure swell values will decrease. The value of the potential swell and pressure will decrease if the sample test condition to be more wet. Keywords: water content, expansive soilPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/2092[How to cite: Pardoyo, B. dan Hidayat, A., 2006, Pengaruh Kadar Air Optimum dengan Variasi Kepadatan terhadap Potensi dan Tekanan Mengembang pada Tanah Ekspansif, Jurnal Media Komunikasi Teknik Sipil, Volume 14, Nomor 2, pp. 119-128]
Pemanfaatan Lumpur Limbah Tinta Sebagai Bahan Substitusi Pada Material Bangunan Berbasis Semen Arif Hidayat
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 14, Nomor 1, Edisi XXXIV, PEBRUARI 2006
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (173.545 KB) | DOI: 10.14710/mkts.v14i1.3930

Abstract

Ink residue as a site product from printing factories can accumulate in time forming an environmental threatening product. Beside from its magnitude in terms of quantity, its black-brownish color can also contaminate surrounding areas. Studies performed at the Material and Structural Laboratory, Diponegoro University, attempt to increase this ink residue’s commercial value by using it as a substituting material for cement based products. Cement based products which are investigated are concrete and paving blocks. Concrete is a building material consisting of sand, gravel and cement acting as binding agent. On the other hand Paving Blocks consisting only of sand and cement and are formed by pressing the mass, requiring a mix with a very low water content. The ink residue was replacing parts of the sand.  Factors being observed are the compression strength, weight and unit price. Keywords: ink residue, concrete, paving blocks, compression and unit weightPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3930[How to cite: Hidayat, A., 2006, Pemanfaatan Lumpur Limbah Tinta sebagai Bahan Substitusi pada Material Bangunan Berbasis Semen, Jurnal Media Komunikasi Teknik Sipil, Volume 14, Nomor 1, pp. 13-20]
Pengekang Crossties di Zona Tekan Balok dengan Pembebanan Siklik Yulita Arni Priastiwi; Iswandi Imran; Nuroji Nuroji; Arif Hidayat
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 24, Nomor 2, DESEMBER 2018
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (973.852 KB) | DOI: 10.14710/mkts.v24i2.18980

Abstract

Crossties that was installed as a confinement in the compression zone of the beam is proven can increase the ductility, especially when receiving the earthquake load. Using an experimental study, this paper  explains  the effect of crossties which was installed in compression zone of the beam. The model was a simplification of the plastic hinge of the beam. The beam was enlarged in the center of the span and would be loaded with a cyclic of point load, so as to produced the largest moment and shear fields in the face beam of the column. Moreover, the loading was provided by the displacement control system to achieve the ultimate condition. The results show that the crossties significantly increases the displacement and curvature ductility of the beams of 58.7% and 78.2%, respectively, compared to the beam without confinement. In addition, the load cycle formed by cyclic loading increases to 43 cycles in beam with crossties, meanwhile the beam without confinement can only survive up to 33 cycles. The crossties could also increase the cumulative value of inelastic displacement that occurs up to 98%, whereas its  energy dissipation value is six times than the beam without confinement. On the other hand, the maximum load and capacity moment only increase about 6.5%.