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Dwi Kartikasari
Fakultas Teknik Universitas Islam Lamongan
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering

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KAJIAN BAHAN TAMBAH ATERNATIF SERAT ECENG GONDOK TERHADAP CAMPURAN LATASIR SAND SHEET KELAS A SPESIFIKASI SEKSI-6 2010 BINA MARGA Dwi Kartikasari; Ilham sudarso
U Karst Vol 1, No 1 (2017): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (351.199 KB) | DOI: 10.30737/ukarst.v1i1.658

Abstract

The test was carried out by adding water hyacinth fibers in the sand sheet class A latasir mixture. And with the addition of water hyacinth fiber variations of 0.6%, 0.9%, 1.2% taken from asphalt content. The final result of this research was Marshall evaluation which was obtained for the effect of the addition of water hyacinth cellulose fiber in this study showed an increase in Marshall stability value of 27.29% with a mixture of 1.2% water hyacinth, plastic fatigue (Flow) decreased by -23 , 89% with a mixture of 0.9% water hyacinth, cavity filled in the mixture (Void in the Mix) increased by 18.65% with a mixture of 1.2% water hyacinth, cavity filled with asphalt (Void Filled With Asphalt) decreased by -8.74% with a mixture of 1.2% water hyacinth, cavity in aggregate (Void In Mineral Aggregate) increased by 7.80% with a mixture of 1.2% water hyacinth, and Marshall Quotient increased by 71.78% with a mixture of 0.9% water hyacinth. These results indicate that water hyacinth fiber can be used as an ingredient to add a mixture of latasir sand sheet class A specifications of clan development.
ALTERNATIF PENGGUNAAN SERAT ECENG GONDOK UNTUK MENINGKATKAN INDEX PROPERTIES OF MARSHALL PADA CAMPURAN LASTON TIPE I SNI 03-1737-1989 Dwi Kartikasari; Samsul Arif
U Karst Vol. 2 No. 1 (2018): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v2i1.260

Abstract

However, flexible pavement has many disadvantages, such as early damage to the road surface after some time has passed by traffic so the road cannot reach the planned age. For this reason, a research was carried out to add hot asphalt mixture which aims to improve the quality of the mixture, the selected material is natural water hyacinth. The method used is trial and error with reference SNI 03-1737-1989. Variations used were 3%, 5%, and 7% of asphalt weight, the level of asphalt used was 4.48%. Of the 3 variations of the mixture used in Type I Asphalt Concrete Layer, the results obtained that the water hyacinth fiber content that has the best score and meet the specifications of SNI 03-1737- 1989 is the percentage of 7% obtained. from the calculation data using graphs and regression models where Marshall Stability is 889.73 Kg, VFWA (voids filled with asphalt) are equal to 65.97%, VIM (voids in mixtures) are equal to 1.757%, VMA (voids in mineral aggregates ) is equal to 20.30%, density 2.420 gr / cc, Flow 3.37 mm, and Marshall Quotient of 265.80 Kg / mm. Keywords : Flexible Pavement, Water Hyacinth Fiber, Marshall Test. Namun, perkerasan lentur memiliki banyak kelemahan, seperti kerusakan awal pada permukaan jalan setelah beberapa waktu berlalu lalang sehingga jalan tidak dapat mencapai usia yang direncanakan. Untuk alasan ini, penelitian dilakukan untuk menambahkan campuran aspal panas yang bertujuan untuk meningkatkan kualitas campuran, bahan yang dipilih adalah eceng gondok air alami. Metode yang digunakan adalah coba-coba dengan referensi SNI 03-1737-1989. Variasi yang digunakan adalah 3%, 5%, dan 7% dari berat aspal, tingkat aspal yang digunakan adalah 4,48%. Dari 3 variasi campuran yang digunakan pada Tipe I Asphalt Concrete Layer, diperoleh hasil bahwa kandungan serat eceng gondok yang memiliki skor terbaik dan memenuhi spesifikasi SNI 03-1737-1989 adalah persentase 7% yang diperoleh. dari data perhitungan menggunakan grafik dan model regresi di mana Marshall Stability adalah 889,73 Kg, VFWA (rongga diisi dengan aspal) sama dengan 65,97%, VIM (rongga dalam campuran) sama dengan 1,757%, VMA (rongga dalam agregat mineral) sama dengan hingga 20,30%, kepadatan 2,420 gr / cc, Aliran 3,37 mm, dan Marshall Quotient dari 265,80 Kg / mm. Kata Kunci: Perkerasan Lentur, Serat Eceng Gondok, Uji Marshall.
PENGARUH CAMPURAN AIR LIMBAH (AIR SELOKAN) TERHADAP KUAT TEKAN BETON f’c 14.5 Mpa (K-175) Rasio Hepiyanto; Dwi Kartikasari
U Karst Vol. 2 No. 2 (2018): NOVEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v2i2.266

Abstract

In improving technological progress, the use of concrete as a building is very popular in Indonesia. Because it can utilize materials that are easily obtained such as crushed stone, gravel, sand, cement and water at a relatively cheap price. On a daily use basis often found in housing construction project workers who use waste water (Sewer Water) for concrete processing. This of course requires a closer inspection of the quality of the concrete produced. The data analysis method begins with the investigation of cement materials, coarse and fine aggregates. Mixing concrete using clean water (PDAM) as a reference and waste water (Sewer Water) from the Unisla flat building. From the analysis that has been done, it is obtained the results of the compressive strength test of concrete at the age of 7, 14 and 28 days by mixing clean water of 13.68 MPa, 18.51 MPa, 21.04 MPa, while the results of the concrete compressive strength test at ages 7, 14 and 28 days by mixing Wastewater (Sewer Water) at 9.99 MPa, 13.35 MPa and 15.36 MPa. Keywords : Wastewater, Concrete, Compressive Strength Dalam meningkatkan kemajuan teknologi, pemakaian beton sebagai bangunan sangat popular di indonesia. Karena bisa memanfaatkan bahan yang mudah diperoleh seperti batu pecah, batu kerikil, pasir, semen dan air dengan harga yang relatif murah.Pada penggunaan sehari-hari sering dijumpai pada pekerja proyek pembangunan rumah tinggal yang menggunakan air limbah (Air Selokan) untuk pengerjaan pembetonan. Hal ini tentunya memerlukan pemeriksaan yang lebih teliti terhadap mutu beton yang dihasilkan. Metode analisa data dimulai dengan penyelidikan bahan semen, agregat kasar dan halus. Pencampuran beton menggunakan air bersih (PDAM) sebagai acuan dan air limbah (Air Selokan) dari gedung rusunawa Unisla. Dari analisa yang telah dilakukan didapat hasil pengujian kuat tekan beton pada umur 7, 14 dan 28 hari dengan pencampuran air bersih sebesar 13,68 Mpa, 18,51 Mpa, 21,04 Mpa,  sedangkan  hasil  pengujian  kuat tekan beton pada umur 7, 14  dan  28  hari  dengan pencampuran Air Limbah (Air Selokan) sebesar 9,99 MPa, 13,35 MPa, dan 15,36 MPa. Kata Kunci : Air Limbah, Beton, Kuat Tekan
SIMULASI DISTRIBUSI AIR BERSIH DENGAN ADOBE FLASH Dwi Kartikasari; Nur Nafi’iyah
U Karst Vol. 3 No. 1 (2019): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v3i1.347

Abstract

The use of software in the design of clean water distribution is not new. Commonly software was used specifically was designed for clean water distribution networks, namely Epanet 2.0 and WaterCAD. So that in this research was tried using general software multimedia-based namely Adobe Flash. The stages of making simulation with the Adobe Flash program include: (1) Making a storyline, which is making a layout for planning map for clean water distribution networks. (2) Making images and symbol, including pictures of reservoir location, hamlet locations, village road, while symbol was used to determine the water flow direction from the water source to the reservoir and to each hamlet. (3) making water distribution simulation was described by arrows in the pipe, namely from the water source to the reservoir, also distributed to each village. (4) Finishing stage (finishing), which publishes work files Adobe Flash, namely .fla to file in the form of .swf and .exe. So that files can be run without installing Adobe Flash software. Keywords: Simulation; Clean Water Distribution; Adobe FlashPenggunaan perangkat lunak dalam desain distribusi air bersih bukanlah hal baru. Umumnya perangkat lunak yang digunakan khusus dirancang untuk jaringan distribusi air bersih, yaitu Epanet 2.0 dan WaterCAD. Sehingga dalam penelitian ini dicoba menggunakan perangkat lunak umum berbasis multimedia yaitu Adobe Flash. Tahapan pembuatan simulasi dengan program Adobe Flash meliputi: (1) Membuat alur cerita, yaitu membuat tata letak untuk merencanakan peta untuk jaringan distribusi air bersih. (2) Membuat gambar dan simbol, termasuk gambar lokasi reservoir, lokasi dusun, jalan desa, sedangkan simbol digunakan untuk menentukan arah aliran air dari sumber air ke waduk dan ke setiap dusun. (3) membuat simulasi distribusi air digambarkan dengan panah di pipa, yaitu dari sumber air ke waduk, juga didistribusikan ke setiap desa. (4) Finishing stage (finishing), yang menerbitkan file kerja Adobe Flash, yaitu .fla ke file dalam bentuk .swf dan .exe. Sehingga file dapat dijalankan tanpa menginstal perangkat lunak Adobe Flash. Kata Kunci: Simulasi; Distribusi Air Bersih; Adobe Flash
STUDI PENCAMPURAN SERAT ENCENG GONDOK PADA CAMPURAN BETON DENGAN PENGGUNAAN AGREGAT KASAR DARI KECAMATAN MANTUP Kartisyah Wulandari; Dwi Kartikasari
U Karst Vol. 3 No. 1 (2019): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v3i1.348

Abstract

The purpose of this study is to know the characteristics of the coarse aggregate of Mantup and to determine the effect of natural water hyacinth fiber addition from the use of the coarse aggregate of Mantup towards the concrete compressive strength. This research method employs experimental methods with mix design (reference of SNI 03-2834-2000). To determine the effect of adding the natural water hyacinth fiber and coarse aggregate of Mantup, the experiment is done with the variation of 0%, 4%, 6%, and 8% by weight of the cement. The test object used is cylinders Ø15 cm × 30 cm. The number of samples made as many as 12 samples, consisting of 4 variations and for each variation is made 3 samples. After doing the immersion for 7 days, it is done the testing that can be conversed to 28 days. From the test, obtained the result that the compressive strength for the 0% fiber variation produces compressive strength of 94,36kg/cm², for 4% fiber variation produces compressive strength of 40.44 kg/cm², for 6% fiber variation produces compressive strength of 48.53 kg/cm², and for the 8% fiber variation produces compressive strength of 47.18 kg/cm². Keywords :Water Hyacinth; Coarse Aggregate of Mantup; Compressive Strength of ConcreteTujuan dari penelitian ini adalah untuk mengetahui karakteristik agregat kasar Mantup dan untuk mengetahui pengaruh penambahan serat eceng gondok dari penggunaan agregat kasar Mantup terhadap kekuatan tekan beton. Metode penelitian ini menggunakan metode eksperimental dengan desain campuran (mengacu pada SNI 03-2834-2000). Untuk mengetahui pengaruh penambahan serat eceng gondok air dan agregat kasar Mantup, percobaan dilakukan dengan variasi 0%, 4%, 6%, dan 8% berat semen. Objek uji yang digunakan adalah silinder Ø15 cm × 30 cm. Jumlah sampel yang dibuat sebanyak 12 sampel, terdiri dari 4 variasi dan untuk setiap variasi dibuat 3 sampel. Setelah melakukan perendaman selama 7 hari, dilakukan pengujian yang dapat dikonversi menjadi 28 hari. Dari pengujian, diperoleh hasil bahwa kuat tekan untuk variasi serat 0% menghasilkan kuat tekan 94,36kg / cm², untuk variasi serat 4% menghasilkan kuat tekan 40,44 kg / cm², untuk variasi serat 6% menghasilkan kuat tekan 48,53 kg / cm², dan untuk variasi serat 8% menghasilkan kuat tekan 47,18 kg / cm².Kata Kunci: Eceng Gondok Air; Agregat Kasar Mantup; Kekuatan Beton Tekan 
STUDI EVALUASI PONDASI TIANG PANCANG (Spun Pile) DENGAN PONDASI TIANG BOR (Bored Pile) PADA GEDUNG KANTOR PEMERINTAH KABUPATEN LAMONGAN Dwi Kartikasari; Deny Sanhadi
U Karst Vol. 3 No. 2 (2019): NOVEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v3i2.602

Abstract

Foundation planning must be done carefully and correctly. The planning of this foundation aims to compare the axial forces acting with the carrying capacity of the foundation between the original foundation that spooked the spun pile and bored pile on the construction of the Lamongan Regency Government office building to obtain safe control. The carrying capacity of the foundation is planned to use the Standard Penetration Test (SPT) data. The initial calculation of loading analysis includes dead load, live load, and earthquake. These expenses are combined then analyzed with the Staad.Pro program. The reduction calculation uses a method of reduction in clay. Calculation of pile cap and foundation reinforcement using SNI 1726-2012. The output of the Staad.Pro program is obtained axial force in the column that is reviewed at 1260 kN. Carrying capacity of a single-pole diameter of 40 cm with a depth of 20 m obtained compressive strength of 431.49 kN. Taking into account the efficiency figures obtained group carrying capacity (Qg) of 1715.52 kN> 1260 kN so that it meets the requirements. The flexural reinforcement D16-125 mm is planned to hold the moment in the pile cap which occurs at 211.6 kN-m. The decrease in total (St) is the immediate total decrease (Si) and the decrease in consolidation (Sc) which is 1.673 <15 cm. The decrease in total (St) on the group pole meets the permitted conditions for the building based on the Geotechnical RSNI.Keywords: Foundation carrying capacity, Pile cap, Group drop, Bored Pile Perencanaan fondasi harus dilakukan dengan cermat dan benar. Perencanaan yayasan ini bertujuan untuk membandingkan gaya aksial yang bertindak dengan daya dukung yayasan antara yayasan asli yang membuat tiang pancang dan tiang pancang pada konstruksi gedung kantor Pemerintah Kabupaten Lamongan untuk mendapatkan kontrol yang aman. Daya dukung yayasan direncanakan untuk menggunakan data Uji Penetrasi Standar (SPT). Perhitungan awal analisis pemuatan meliputi beban mati, beban hidup, dan gempa bumi. Biaya-biaya ini digabungkan kemudian dianalisis dengan program Staad.Pro. Perhitungan reduksi menggunakan metode reduksi dalam tanah liat. Perhitungan pile cap dan pondasi menggunakan SNI 1726-2012. Output dari program Staad.Pro diperoleh gaya aksial di kolom yang ditinjau pada 1260 kN. Daya dukung tiang tunggal diameter tiang 40 cm dengan kedalaman 20 m diperoleh kuat tekan 431,49 kN. Dengan memperhitungkan angka efisiensi yang diperoleh kelompok daya dukung (Qg) dari 1715,52 kN> 1260 kN, sehingga memenuhi persyaratan. Penguat lentur D16-125 mm direncanakan untuk menahan momen di pile cap yang terjadi pada 211,6 kN-m. Penurunan total (St) adalah penurunan total langsung (Si) dan penurunan konsolidasi (Sc) yaitu 1,673 <15 cm. Penurunan total (St) pada tiang grup memenuhi kondisi yang diizinkan untuk bangunan berdasarkan RSNI Geoteknis. Kata Kunci: Daya dukung pondasi, Pile cap, Group drop, Bored Pile.
KAJIAN BAHAN TAMBAH ATERNATIF SERAT ECENG GONDOK TERHADAP CAMPURAN LATASIR SAND SHEET KELAS A SPESIFIKASI SEKSI-6 2010 BINA MARGA Dwi Kartikasari; Ilham sudarso
U Karst Vol. 1 No. 1 (2017): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v1i1.658

Abstract

The test was carried out by adding water hyacinth fibers in the sand sheet class A latasir mixture. And with the addition of water hyacinth fiber variations of 0.6%, 0.9%, 1.2% taken from asphalt content. The final result of this research was Marshall evaluation which was obtained for the effect of the addition of water hyacinth cellulose fiber in this study showed an increase in Marshall stability value of 27.29% with a mixture of 1.2% water hyacinth, plastic fatigue (Flow) decreased by -23 , 89% with a mixture of 0.9% water hyacinth, cavity filled in the mixture (Void in the Mix) increased by 18.65% with a mixture of 1.2% water hyacinth, cavity filled with asphalt (Void Filled With Asphalt) decreased by -8.74% with a mixture of 1.2% water hyacinth, cavity in aggregate (Void In Mineral Aggregate) increased by 7.80% with a mixture of 1.2% water hyacinth, and Marshall Quotient increased by 71.78% with a mixture of 0.9% water hyacinth. These results indicate that water hyacinth fiber can be used as an ingredient to add a mixture of latasir sand sheet class A specifications of clan development.
PEMBUATAN BETON CAMPURAN STYROFOAM MENGGUNAKAN AGREGAT PASIR BENGAWAN SOLO Achmad Hasyim; Dwi Kartikasari
U Karst Vol. 4 No. 1 (2020): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v4i1.697

Abstract

Concrete becomes a building material that has an important role and is in great demand. Composite materials concrete that is easily obtained is the advantages of concrete today. The specific gravity of concrete depends on the material making up of concrete. The smaller specific gravity of concrete will make the concrete have a lightweight; this will affect the dead load of the building. This research aims to find out how the process and also the effect of styrofoam mixture using Bengawan Solo River sand with the initial quality used is K-250. The research method used is the experimental method and even the study of previous research theories. Test specimens used are cylindrical, with variations in the percentage of the addition of styrofoam 0%, 1%, and 1.5%. Compressive strength testing is performed at the age of 7 days of concrete. The test results show that the addition of styrofoam in a concrete mixture affects the compressive strength of concrete, with the addition of styrofoam the percentage of 1% obtains a compressive strength of 21.899 MPa, while the addition of styrofoam percentage of 1% obtains a compressive strength of 20.453 MPaBeton menjadi material bangunan yang memeiliki peran penting dan banyak diminati. Material penyusun beton yang mudah didapatkan menjadi keunggulan beton saat ini. Berat jenis beton bergantung pada material penyusun beton. Berat jenis beton yang lebih kecil akan membuat beton memiliki bobot yang ringan, hal tersebut akan berpengaruh pada beban mati bangunan. Penelitian ini dilakukan bertujuan untuk mengetahui bagaimana proses dan pengaruh campuran styrofoam menggunakan pasir Sungai Bengawan Solo dengan mutu awal yang dgunakan yaitu K-250. Metode penelitian yang digunakan yaitu metode eksperimental dan juga kajian teori penelitian terdahulu. Benda uji yang digunakan berbentuk silinder dengan variasi prosentase penambahan styrofoam 0%, 1% dan 1.5%. Pengujian kuat tekan dilakukan saat umur beton 7 hari. Hasil pengujian menunjukkan penambahan styrofoam dalam campuran beton mempengaruhi kuat tekan beton,  dengan  penambahan  styrofoam prosentase 1% memperoleh kuat tekan sebesar 21,899 MPa, sedangkan penambahan styrofoam prosentase 1% memperoleh kuat tekan sebesar 20,453 Mpa. 
Co-Authors Achmad Hasyim Deny Sanhadi Ilham sudarso Kartisyah Wulandari Mohammad Zainudin Abdillah Nur Nafi’iyah Nur Nafi’iyah Putri Devi Pratiwi Rasio Hepiyanto Reno Dwi Santoso Samsul Arif