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All Journal Civil Engineering Dimension SENTIA 2017 Prokons: Jurnal Teknik Sipil Jurnal Pengabdian kepada Masyarakat
Akhmad Suryadi
Politeknik Negeri Malang
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Public Health Social Sciences Other

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ANALISIS KUAT TARIK BELAH TERHADAP PEMANFAATAN LIMBAH STRAPPING BAND SEBAGAI SUBSTITUSI PASIR PADA BETON NORMAL Dr. Akhmad Suryadi, BS., MT
Prokons: Jurnal Teknik Sipil Vol. 13 No. 2 August 2019
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v13i2.203

Abstract

The advancement era, the use of strapping band in the process of shipping goods was increases because of the more practical needs and stronger straps make the waste from strapping band was increases. With a large amount of waste by shredding it into smaller sizes it can be used as a substitute for fine aggregate in concrete mixture with synthetic fiber reinforced concrete concept at the Laboratory of Civil Engineering Politeknik Negeri Malang. The objectives of this research were to analyze the characteristics of concrete with the substitution of strapping band waste against fine aggregate in compressive strength and split tensile strength test. The research method including: aggregate test and strapping band test, the mix design of concrete mixture was using the reference SNI 03-2834-2000. The experiments sample for each variation of 0%, 5%, and 8% were performed with 24 cylinder specimens for compressive strength and 6 cylinder specimens for split tensile strength. The compressive strength on 28 days with 0%, 5%, and 8% variation resulted in 27.67 kg/cm2; 26.82 kg/cm2; 17.83 kg/cm2. The split tensile strength on 28 days with 0% 5%, and 8% variation resulted in 2.42 kg/cm2; 1.90 kg/cm2; 1.51 kg/cm2. The average weight of cylinder specimens with 0%, 5%, and 8% variation resulted in 12.62 kg; 12.04 kg; 11.61 kg. Substitution of strapping band waste decreases compressive strength, split tensile strength and average weight concrete. Key words : Strapping band waste, compressive strength, split tensile strength
EVALUASI MUTU BETON PADA STRUKTUR SILO CEMENT GRINDING PLANT CIGADING Suhariyanto, A. Suryadi
Prokons: Jurnal Teknik Sipil Vol. 11 No. 1 February 2017
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v11i1.124

Abstract

Untuk mengetahui mutu beton pada struktur silo Cement Grinding Plant Cigading, maka telah dilakukan pengujian Ultrasonic Pulse Velocity (UPV) pada pile cap dan dinding pada silo kapasitas 10.000 ton.Titik pengujian yang diambil sebagai sampel adalah 56 titik pada pile cap  dan 15 titik pada bagian bawah dinding silo.Berdasarkan pengujian yang dilakukan dapat disampaikan bahw untuk pile  cap, sekitar 93 % dari sampel yang diambil mempunyai kualitas kepadatan  beton yang baik sampai dengan sangat baik.  Estimasi kuat tekan beton ekivalensi kubus untuk pile cap adalah sekitar 389 kg/cm2. Untuk bagian bawah dinding silo, sekitar 87 % dari sampel yang diambil mempunyai kualitas  kepadatan beton  yang baik sampai dengan sangat baik.  Estimasi kuat tekan beton ekivalensi kubus untuk pile cap adalah sekitar  421 kg/cm2. Kata-kata kunci: mutu beton, struktur silo, ultrasonic pulse velocity
ANALISIS KINERJA BETON NORMAL DAN BETON DENGAN SEMEN SUBSTITUSI BLAST FURNACE SLAG Tri Septa A.D., Qomariah, Akhmad Suryadi
Prokons: Jurnal Teknik Sipil Vol. 12 No. 2 August 2018
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v12i2.161

Abstract

The use of steel smelting waste industry is used to reduce the waste overflow at the site. The waste steel smelting industry called blast furnace slag (BFS) used as a substitution for cement in a concrete mixture in a Laboratory Material Test, Civil Engineering State Polytechnic of Malang. The purpose of this analysis is to: 1) Test the workability of normal concrete and concrete with BFS; 2) Find out compressive strength of each concrete; 3) Compare the price to both concrete in the construction of building.The required data were of gradation of aggregate, water content of aggregate, density of aggregate, absorption of aggregate, bulk density of aggregate, fineness of cement, normal consistency of cement, cement setting time, compressive strength of mortar cement, and the price of building materials Surabaya 2016. SNI 03-2834-2000 method was applied with variations BFS substitute of cement are 0%, 10%, 15%, 20%, and 30% BFS and the planned compressive strength obtained at 28 days of 300 kg/cm2.The analyses result in 1) The workability of each concrete: 5.75cm of normal concrete (0%), 3.45cm, 3.15cm, 3.1cm, and 3.05cm respectively with BFS concrete; 2) The compressive strength of each concrete at 28 days: 235.56kg/cm2 of normal concrete, 105.33kg/cm2, 138.96kg/cm2, 127.26kg/cm2, and 94.52kg/cm2respectively with BFS concrete; The use of BFS cannot be applied to the concrete mixture, because of low compressive strength; 3) For the price of concrete materials per m3 are IDR 999.472,05 of normal concrete, IDR 996.926,78 for 10% with BFS, IDR 995.654,93 for 15% with BFS, IDR 994.381,50 for 20% with BFS, and IDR 991.837,80 for 30% with BFS. Keywords: BFS, workability, compressive strength
INVESTIGASI FAKTOR AIR SEMEN RENCANA TERHADAP KINERJA BETON SEGARDAN KUAT TEKAN BETON SELF COMPACTING CONCRETE Akhmad Suryadi; Qomariah Qomariah
SENTIA 2017 Vol 9 (2017)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.664 KB)

Abstract

Materials of concrete that is inseparable from modern social life. Concrete is used for the construction of roads, bridges, dams, power plants and buildings. The main constituents of concrete are cement, sand, gravel and water. With increasing concrete as a frequently used material, requires experts to make concrete with the latest technology by improving the quality of the concrete. With the existence of other material mixers, can be used as the latest technology in the manufacture of concrete, one of which is Self Compacting Concrete (SCC). The SCC concrete, is a concrete that can solidify itself. SCC concrete is a concrete that is done easily because the resulting mortar is very liquid compared with normal concrete. In this SCC concrete mixture, added with other ingredients in the form of admixture in the form of silicafume 5% of the weight of cement volume and the additive is fosroc 0.6% of the weight of cement volume. In the present study, it will be planned for a compressive strength of 35 MPa with a cylindrical test object. From the results of research on this SCC concrete is obtained slump flow results are eligible, with an average value of 60 cm with the standard value of slump flow with a value of 50 cm. While for testing L-Box test, the percentage value that has been fulfilled is at least 70% of the average height value of mortar in L-Box test tool. Obtained research value of 75%. For V-funnel test, this SCC concrete obtained qualified test result by passing V-funnel tool with standart duration for 8 seconds. Whereas the test that has been done obtained data duration for 5 seconds. While for the compressive strength of concrete produced is 15.01 MPa at 7 days. 20.24 MPa for 14 days old, while for 28 days old is 23.21 MPa. Can not meet the requirement or planned compressive strength that has been planned previously at 35 MPa.Keywords :Self Compacting Concrete, water cement ratio, fresh concrete, hard concrete
Optimization of Water Distribution in Pagerwojo District Tulungagung, Indonesia, using Linear Programming Model Ratih Indri Hapsari; Akhmad Suryadi; Affan Nurun Tajalla
Civil Engineering Dimension Vol. 24 No. 1 (2022): MARCH 2022
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (708.204 KB) | DOI: 10.9744/ced.24.1.38-45

Abstract

Optimization approaches has been utilized in solving complex water service problems. This study attempts to determine the optimal distribution system for clean water pipelines by applying linear programming method which enables the determination of the optimal and most affordable solution under all constraints. The decision variable was the water quantity allocated to the system. The piping investment, operational and maintenance costs in present value with 4% interest were calculated to obtain the water unit price. The allocated water should meet the requirements within a dependable discharge. The study was conducted in Pagerwojo District, Tulungagung Regency, Indonesia, grouped into three transmission lines with 106 l/s demand. There are three sources of fresh water, namely Song River, Klantur River, and Gondang Spring. The analysis reveals that the minimum cost was Rp456,679,296/month. Linear programming method is proven useful for determining the allocation of clean water in the most cost-efficient manner.
PERENCANAAN ANGGARAN BIAYA TANDON AIR BERSIH DESA WRINGINSONGO KECAMATAN TUMPANG KABUPATEN MALANG Devi Zettyara; Dwi Ratnaningsih; Sitti Safiatus Riskijah; Rizki Putri Ramadhani; Wahiddin Wahiddin; Akhmad Suryadi
J-ABDI: Jurnal Pengabdian kepada Masyarakat Vol. 3 No. 6: Nopember 2023
Publisher : Bajang Institute

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Abstract

Dalam usaha mempertahankan kelangsungan hidupnya, manusia berupaya mengadakan air bersih yang cukup bagi dirinya sendiri, sehingga ketersediaan air bersih menjadi kebutuhan utama dalam kehidupan yang sehat. Desa Wringinsongo secara geografis merupakan salah satu desa dari total 15 desa yang ada di Kecamatan Tumpang, Kabupaten Malang dengan luasan sebesar 137,5 Ha atau 1,91% dari luas Kecamatan Tumpang. Hasil pemantauan di lapangan, menunjukkan bahwa dengan jumlah penduduk yang tergolong besar, jumlah debit air bersih yang mengalir ke masyarakat cukup kecil. Oleh karena itu, dibutuhkan pembaharuan pada tandon air bersih, karena sumber air bersih yang sudah ada dinilai sudah besar dan lebih dari cukup untuk memenuhi kebutuhan air bersih masyarakat sekitar. Kegiatan ini bertujuan untuk membantu mitra dalam menghitung dana yang dibutuhkan untuk rencana pembangunan tandon air bersih, sehingga bentuk akhir yang diperoleh adalah RAB. Rencana pembuatan bangunan tandon air bersih di wilayah Desa Wringinsongo membutuhkan biaya sebesar Rp 267.258.200,00.
Co-Authors Affan Nurun Tajalla Devi Zettyara dwi ratnaningsih Hapsari, Ratih Indri Qomariah Rizki Putri Ramadhani Sitti Safiatus Riskijah Wahiddin Wahiddin