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All Journal International Conference on Coastal and Delta Areas JITEK (Jurnal Ilmiah Teknosains) Jurnal DISPROTEK Neo Teknika: Jurnal Ilmiah Teknologi Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Jurnal Teknik Sipil Jurnal Civil Engineering Study Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan PASAK: Jurnal Teknik Sipil dan Bangunan
Fatchur Roehman
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Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Public Health Social Sciences Transportation Veterinary Other

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Alternatif Penanganan Stabilitas Timbunan dan Lereng pada Oprit Jembatan dengan Mortar Busa (Studi Kasus : JU Rel KA Cibitung – Cilincing) Annissa Yoga Prastika; Wahyu Febriyanto; Dewi Indriyana; Bagas Wahyu Adhi; Fatchur Roehman; Faqih, Nasyiin
Jurnal Civil Engineering Study Vol. 5 No. 01 (2025): Jurnal Civil Engineering Study
Publisher : Civil Engineering of Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/ces.v5i01.1286

Abstract

Soft soil is caused by cohesion, a low internal friction angle and high compressibility. If not recognized and investigated it can cause instability and long-term decline that cannot be tolerated. One of the treatments that occurs in soft soil is light backfilling with foam mortar. The aim of this research is to carry out an analysis of the stability of embankments using lightweight materials at the location of bridge embankments in order to predict how much of an impact there will be in reducing settlement and increasing embankment stability. Analysis was carried out using the Finite Element Method with the help of the Plaxis 2D program. The method used in this research is descriptive qualitative, namely research by collecting primary and secondary data from the parameters and variables studied and then analyzing them to draw conclusions. In the results of the analysis using Plaxis Softwere using foam mortar treatment with an embankment slope of 1: 1.5, the results showed that the decline in 1 year was 4 cm (meeting the design criteria), the decline in 10 years was 2.8 cm (meeting the design criteria), apart from that the safety factor using foam mortar was also greater than the design criteria, which means the stability of the slope is safe.
REVIEW PEMANFAATAN SAMPAH PLASTIK UNTUK ENERGI DAN BAHAN KONSTRUKSI Qomaruddin, Mochammad; Tristan, Alfian; Faqih, Nasyiin; Roehman, Fatchur; Mushthofa, Mushthofa
(JITEK)Jurnal Ilmiah Teknosains Vol 10, No 2/Nov (2024): Jitek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jitek.v10i2/Nov.20048

Abstract

The problem of plastic waste has become a global concern due to its negative impact on the environment. Plastic, as a non-biodegradable material, results in significant pollution of soil and water. As plastic production increases, efforts to find innovative solutions in reducing environmental impact are important. This article discusses the use of plastic waste as an alternative energy source and construction material. Using a liter-tour review method from various sources that explores the potential of plastics to be converted into energy as well as their use in building materials and as aggregates in concrete. The results of the analysis show that the use of plastic waste can not only reduce pollution, but also provide economic and social benefits, especially as fuel oil and building materials such as paving plastic, plastic aggregate, asphalt plastic mixture. 
Analisa Hubungan Grading Agregat Terhadap Kuat Tekan Dan Porositas Beton Porous Geopolimer Darmoko, Wahyu Setyo; Qomaruddin, Mochammad; Saputro, Yayan Adi; Rochmanto, Decky; Roehman, Fatchur; Faqih, Nasyiin
Jurnal Teknik Sipil Vol. 18 No. 1 (2025): Juni 2025
Publisher : Faculty Of Engineering University 17 August 1945 Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56444/g8nqmc61

Abstract

This research is an experimental study on porous concrete and the use of fly ash as a binder for concrete to analyze the effect of compressive strength and porosity. The research method used in this study is the experimental method which is a research method used to find the effect of certain treatments on concrete. In this research, the concrete mix design uses a ratio of gravel and geopolymer paste as a binder, namely 4: 1 and uses a molarity ratio of 10M with differences in grading of coarse aggregate using sieves number 4, 1/2 ", and 3/8". The optimum compressive strength value was obtained in mix design 1 using sieve gradation no.4 which was 4.25 MPa at 28 days old. While the results of the highest porosity value were found in mix design 1 which was 7.15% at 28 days old
CORRELATION STUDY BETWEEN UPV AND HAMMER TEST IN DETERMINING THE FUNCTIONAL SUITABILITY OF BUILDING STRUCTURES Robandi, Fathur Rohman; Roesdiana, Tira; Hidayat, Arif; Roehman, Fatchur
Jurnal Disprotek Vol 16, No 2 (2025)
Publisher : Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/jdpt.v16i2.8575

Abstract

Buildings that have been in use for a long time should be inspected regularly to ensure that they are safe to use and robust. In the field, visual inspections are often performed on parts of structures such as columns, beams, and plates. Measurement of the propagation time of ultrasonic pulses in concrete and relate it to the quality and strength of the material. A weak positive correlation is shown with a multiple value of R 0.324475. Every 1 m/s increase in the UPV value will increase the Hammer Test result by 0.00755 MPa. However, this relationship is weak because the UPV only accounts for 10.5% of the change in the Hammer Test results. The ultrasonic wave speed and the bounce result of the hammer can be affected by uneven concrete, such as the presence of cavities, material separation, or large gravel. This condition can also be seen during visual examination. STUDI KORELASI ANTARA UPV DAN HAMMER TEST DALAM MENENTUKAN LAIK FUNGSI STRUKTUR BANGUNANBangunan yang telah digunakan dalam jangka waktu lama harus diperiksa secara berkala untuk memastikan bahwa bangunan tersebut aman digunakan dan memiliki ketahanan yang baik. Di lapangan, pemeriksaan visual sering dilakukan pada bagian-bagian struktur seperti kolom, balok, dan pelat. Pengukuran waktu rambat gelombang ultrasonik dalam beton digunakan untuk menghubungkan nilai tersebut dengan kualitas dan kekuatan material. Hasil menunjukkan adanya korelasi positif yang lemah dengan nilai R sebesar 0,324475. Setiap kenaikan 1 m/s pada nilai UPV akan meningkatkan hasil Hammer Test sebesar 0,00755 MPa. Namun, hubungan ini tergolong lemah karena UPV hanya menjelaskan 10,5% dari perubahan hasil Hammer Test. Kecepatan gelombang ultrasonik dan hasil pantulan hammer dapat dipengaruhi oleh ketidakrataan beton, seperti adanya rongga, pemisahan material, atau kerikil besar. Kondisi ini juga dapat diamati melalui pemeriksaan visual.
PENGARUH VOLUME KENDARAAN TERHADAP TINGKAT KERUSAKAN JALAN PADA PERKERASAN LENTUR (Study Kasus Ruas Jalan Keongsari - Blebak STA 0+000 – 1+300 & Karanggondang – Mpurancak STA 0+000 – 1+300) Rizki, Muhammad Efendi; Saputro, ST., MT., Yayan Adi; Rochmanto, Decky; Faqih, Nasyiin; Roehman, Fatchur
Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Vol 12 No 1 (2024): Jurnal Konstruksi dan Infrastruktur Vol 12 No.1 : April 2024
Publisher : Civil Engineering Department, Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jki.v12i1.9105

Abstract

The number of two-, four- or four-wheeled motorized vehicles is increasing in Jepara Regency. With the increasing number of vehicles, it is estimated that roads will experience damage in a relatively short time. The aim of this research is to determine the effect of vehicle traffic on the level of road damage and the relationship between vehicle traffic and the level of road asphalt damage. The method used to determine the value of road damage is the PCI method and the level of road damage uses the non-linear multiple regression method. This research was carried out on two roads, namely Jalan Keongsari – Blebak and Jalan Karanggondang – Mpurancak. It is known that the average damage that occurs on the Keongsari - Blebak road section is 39.29 (BAD) including the Overlay maintenance type, while the Karanggondang - Mpurancak road section has an average damage value of 67.14 (GOOD) if routine maintenance is carried out. pen type. The results of measuring the thickness of the additional layer (overlay) using the road composition analysis method on the Keongsari – Blebak road section obtained an additional layer thickness of 5 cm using LAPEN material. Meanwhile, the results of the relationship between vehicle traffic and road damage show that traffic (pcu/hour) and time (hours) have a large influence on road damage. This is shown by the results of determining the R2 coefficient of 86%. Keyword: Damage, Road, Flexure, Overlay, Highway.
ANALISIS DAMPAK LALU LINTAS DI PASAR TRADISIONAL BINTORO DEMAK DI JALAN SULTAN FATAH DEMAK Widyiati, Khofifah Ayu Retno; Saputro, ST., MT., Yayan Adi; Hidayati, Nor; Roehman, Fatchur
Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Vol 12 No 1 (2024): Jurnal Konstruksi dan Infrastruktur Vol 12 No.1 : April 2024
Publisher : Civil Engineering Department, Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jki.v12i1.9112

Abstract

Demak City is a leading city center which is currently experiencing comprehensive development in all sectors. The increasing traffic volume on Jalan Sultan Fatah in front of Bintoro Demak Market, Demak District, Demak Regency, Central Java, is thought to be caused by busy market activity in the surrounding area. To determine the road's ability to fulfill its function, research was conducted to determine the area of side obstacles along Jl. Sultan Fatah. This research aims to assess the capacity and level of road saturation on Jl. Sultan Fatah. This research uses primary data, namely data collected directly from the field through administering questionnaires. The duration of the survey lasts for six consecutive days, namely Monday to Saturday, starting on July 24 and ending on July 29 2023. At the post-location survey and data management data collection stage, the data undergoes processing. to ascertain some road characteristics. These characteristics include traffic volume, road capacity, traffic flow speed, degree of saturation, side obstacle class, and instantaneous speed. The degree of saturation is set at 0.54 which indicates compliance with the specified threshold of 0.75. Keyword: Traffic Volume, Roads, Parking, Congestion, Markets.
Implementasi Hec-Ras Dalam Penanggulangan Bencana Hidrometeorologi Spesifikasi Banjir Di Wilayah Kecamatan Juwana Kabupaten Pati Rosita, Indah; Hidayati, Nor; Umam, Khotibul; Faqih, Nasyiin; Roehman, Fatchur; Arif Hidayat; Agus Setiawan
Jurnal Civil Engineering Study Vol. 5 No. 02 (2025): Jurnal Civil Engineering Study
Publisher : Civil Engineering of Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/ces.v5i02.1295

Abstract

Bencana banjir yang sering terjadi di Kecamatan Juwana, Kabupaten Pati, memerlukan upaya mitigasi yang efektif untuk mengurangi risiko dan dampaknya. Penelitian ini bertujuan untuk mengidentifikasi debit banjir rencana, menganalisis implementasi perangkat lunak HEC-RAS dalam pemodelan hidraulik, serta mengintegrasikan hasilnya dengan GIS untuk visualisasi zona rawan banjir. Analisis hidrologi dilakukan untuk menghitung debit banjir rencana menggunakan metode Rasional, Der Weduwen, Haspers, dan HSS Nakayasu. Simulasi hidraulik menggunakan HEC-RAS memberikan informasi mendalam mengenai profil muka air, kedalaman genangan, dan kecepatan aliran sungai pada berbagai titik sepanjang Sungai Silugonggo. Hasil penelitian menunjukkan debit banjir rencana mencapai puncak metode Rasional 2903,2192 m3/s, Der Weduwen 2291,861827 m3/s, Haspers 4433,007922 m3/s, dan Nakayasu 6114,1573 m3/s. Simulasi HEC-RAS berhasil memodelkan aliran sub-kritis (angka Froude < 1) dengan kedalaman genangan hingga 3 meter pada beberapa titik kritis. Integrasi dengan GIS menghasilkan peta risiko banjir yang memvisualisasikan area terdampak secara akurat, yang sangat berguna untuk perencanaan mitigasi bencana. Hasil integrasi ini menghasilkan peta risiko yang dapat digunakan sebagai acuan dalam penanggulangan bencana banjir​. Metode yang lebih komperhesif yaitu Metode Nakayasu karena memiliki keunggulan dalam perhitungan hidrograf aliran dari waktu ke waktu. Penelitian ini menyimpulkan bahwa kombinasi HEC-RAS dan GIS merupakan pendekatan yang efektif dalam penanggulangan banjir, baik untuk identifikasi risiko maupun perencanaan infrastruktur pengendalian banjir. Penerapan hasil penelitian ini diharapkan dapat membantu pemerintah dan masyarakat dalam mengurangi dampak bencana banjir di Kecamatan Juwana.
Analisis Kecelakaan Lalu Lintas Jalan Raya Jepara-Bangsri Km 05 Desa Mambak Sari, Novita; Hidayati, Nor; Saputro, Yayan Adi; Qomaruddin, Mochammad; Mushthofa, Mushthofa; Roehman, Fatchur; Roesdiana, Tira
Pasak: Jurnal Teknik Sipil dan Bangunan Vol 1 No 1 (2023): September
Publisher : Fakultas Teknik dan Ilmu Komputer Universitas Sains Al-Quran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/pasak.v1i1.5576

Abstract

Kondisi jalan yang menikung curam serta terdapat banyak kerusakan juga menjadi salah satu factor penyebab terjadinya kecelakaan di Jalan Raya Jepara-Bangsri Km 05 Desa Mambak ini, selain itu mayoritas pengguna jalan ini adalah truck bermuatan besar serta container yang mana sering menjadi penyumbang kerusakan jalan. Berdasarkan beberapa factor yang telah dijelaskan diatas, maka perlu diadakan penelitian analisis kecelakaan lalu lintas di Jalan Raya Jepara-Bangsri Km 05 Desa Mambak yang mampu menyediakan sebuah sistem dan cara yang dapat menjadi evaluasi terhadap kecelakaan lalu lintas yang sering terjadi di Jalan Raya Jepara-Bangsri Km 05 Desa Mambak ini. Metode yang digunakan dalam analisa ini adalah metode Kuantitatif Descriptive atau survey lapangan yang mana akan digunakan untuk mengevaluasi Geometrik jalan, nilai accident rate (tingkat kecelakaan), accident cost (biaya kecelakaan) dan juga menetukan titik Black Spot (daerah rawan kecelakaan).
ANALISIS KERUSAKAN PERKERASAN JALAN MENGGUNAKAN METODE BINAMARGA, PCI DAN SDI bakhri, M.faisol; Saputro, Yayan Adi; Rohmanto, Decky; Roehman, Fatchur; Mushthofa, Mushthofa
Pasak: Jurnal Teknik Sipil dan Bangunan Vol 1 No 1 (2023): September
Publisher : Fakultas Teknik dan Ilmu Komputer Universitas Sains Al-Quran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/pasak.v1i1.5652

Abstract

Ruas jalan jepara – bangsri merupakan jalan kolektor yang berada di wilayah kabupaten jepara, akan tetapi dapat ditemukan kondisi jalan pada segmen tertentu masih terdapat kerusakan-kerusakan yang bisa mengganggu aktifitas pengguna jalan. Maka dari itu, perlu diadakan penelitian analisis kerusakan perkerasan jalan. Menurut hasil analisis Jenis kerusakan yang terdapat pada ruas jalan Jepara-Bangsri meliputi retak memanjang, retak kulit buaya, pengelupasan, amblas dan lubang. Jenis kerusakan yang dominan adalah pengelupasan dengan luas kerusakan 124.33 m2 dan persentase kerusakan 66.72 % serta kerusakan terendah adalah jenis amblas luas kerusakan 6.49 m2 dengan persentase kerusakan 2.13 %. Untuk metode Bina Marga diperoleh nilai urutan prioritas sebesar 5 termasuk dalam kondisi Sedang dengan program penanganan pemeliharaan berkala. Pada metode PCI diperoleh nilai rata-rata sebesar 66.47 yang merupakan kondisi Baik (Good)) termasuk kategori pemeliharaan rutin. Sedangkan metode SDI diperoleh nilai total sebesar 18.67 kategori baik termasuk program pemeliharaan rutin. Dari hasil penelitian diperoleh nilai kondisi jalan yang hampir sama, yaitu masih dalam keadaan cukup baik namun memerlukan pemeliharaan agar tidak memperburuk kondisi jalan.
INCREASING THE INCOME OF MIE LIDI SME IN THE UNDERDEVELOPED VILLAGE OF BANJARSARI, DEMAK, INDONESIA, THROUGH THE UTILIZATION OF HYBRID INVERTER-BASED SOLAR ENERGY AND AUTOMATIC CONTROL Pratomo, Sunu Arsy; Roehman, Fatchur; Purwanto, Purwanto; Setiawan, Muhammad Ikhsan
Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Vol. 9 No. 4 (2025): DESEMBER
Publisher : LPPM Univ. Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/abdidos.v9i4.3091

Abstract

The Community Service Program (PKM) aims to improve production efficiency and product quality of the Mie Lidi Small and Medium Enterprises (SME) in Banjarsari Village, Sayung District, Demak Regency, through the application of renewable energy-based technology. The technology implemented includes solar panels with a hybrid inverter and an automatic drying system with temperature control. This technology reduces dependence on PLN electricity, ensures consistent product quality despite adverse weather conditions, and lowers operational costs. As a result, production capacity increased by 25%, and the sustainability of the SME's operations was better ensured. Additionally, technical training and managerial assistance were provided to support efficient and sustainable business management.
Co-Authors AGUS SETIAWAN Annissa Yoga Prastika ARIF HIDAYAT Arif Hidayat Bagas Wahyu Adhi, Bagas Wahyu bakhri, M.faisol Candrasasi, Dian Darmoko, Wahyu Setyo Decky Rochmanto, Decky Dewi Indriyana Dian Chandrasasi Faqih, Nasyiin Herlambang, Sigit Ilham Putra Kartono Wibowo, Kartono khoirul mahfidh, muhammad Khotibul Umam Munawaroh, Siti Rohmatul Mushthofa Nastain Novita Sari Pratomo, Sunu Arsy Purwanto Purwanto Qolbi, Muhammad Ainun Qomaruddin, Mochammad Rizki, Muhammad Efendi Robandi, Fathur Rohman Rohmanto, Decky Rosita, Indah Saputro, ST., MT., Yayan Adi Saputro, Yayan Adi Setiawan, Muhammad Ikhsan Tira Roesdiana Tristan, Alfian Wahyu Febriyanto Widyiati, Khofifah Ayu Retno Yuli Sulistyowati Yulia Indriani