Article Per Year (5 Year)
p-Index From 2021 - 2026
1.048
P-Index
This Author published in this journals
All Journal Journal of Advanced Civil and Environmental Engineering Jurnal Pengembangan Rekayasa dan Teknologi Jurnal Pengabdian kepada Masyarakat Tropical Aquatic and Soil Pollution Jurnal Pengabdian KOLABORATIF Advance Sustainable Science, Engineering and Technology (ASSET)
Purwanto
Universitas Semarang
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Public Health Social Sciences Transportation Other

Published : 6 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search

 1 
PELATIHAN SOFTWARE COMFAA BAGI MAHASISWA TEKNIK SIPIL DI KOTA SEMARANG Agus Muldiyanto; Mudjiastuti Handajani; Adolf Situmorang; Purwanto
J-ABDI: Jurnal Pengabdian kepada Masyarakat Vol. 2 No. 2: Juli 2022
Publisher : Bajang Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53625/jabdi.v2i2.2658

Abstract

Technological developments really help a civil engineering graduate in designing in the civil engineering field. There are a lot of software that can be used to design runway pavement thicknesses, one of them is COMFAA. In this service activity, the service team conducted training about the calculation of the runway pavement thickness at the airport using COMFAA software for civil engineering students and construction workers. The purposes of this service activity are to give deep understanding about the design of pavement layers on airport runways, to develop knowledge in pavement thickness designs, and to enhance the engineering student’s competence in using COMFAA to plan airport pavement layers. The implementation of this service was carried out in Semarang for Civil Engineering students and Construction Actors. The result was an understanding enhancement of runway pavement analysis from 0% to 77%.
Performance of The Existing Building Under Earthquake Loads Based on Current Indonesian National Standard Lintang Enggartiasto; Nur Fithriani Fatma Cholida; Purwanto P
JACEE (Journal of Advanced Civil and Environmental Engineering) Vol 5, No 2 (2022): October
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/jacee.5.2.94-102

Abstract

This paper presents the results of an assessment of the existing 5-storey building built in 1980, which aims to determine the level of safety against the most recent standards. The method used is non-destructive testing, collecting planning data in the form of as built drawings and implementation data. The assessment of the existing structure consists of an evaluation of the condition of the material, structural system, and analysis of the structure using the latest load standards. The test results of the existing structural material show that the compressive strength of the concrete still meets the requirements based on SNI-2847-2019. The results of the evaluation of the structure against earthquake loads show that the performance of the structure has a mass participation of 100% and the dynamic base shear force (V) reaches 100% of Vstatic therefore it meets the requirements in SNI 1726-2019. The results of the evaluation of the performance of the structure show that the lateral drift and P-delta effects still meet the requirements of the most recent standards. Horizontal and vertical structural irregularities are found in the existing structural system. The structure's overall performance level (X and Y direction earthquakes) is Damage Control. These results are still permitted for structures with a priority factor (Ie) 1.50, with an earthquake return period of 2500 years.
Environmental Implications of Liquid Natural Rubber Latex as a Sustainable Additive in Concrete: Effects on Mechanical Performance and Water–Cement Interaction Hani Purwanti; Purwanto; Trias Widorini; Talitha Zhafira
Tropical Aquatic and Soil Pollution Volume 6 - Issue 1 - 2026
Publisher : Tecno Scientifica Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53623/tasp.v6i1.1161

Abstract

Increasing demand for ecologically friendly construction materials has promoted the use of renewable additives in concrete systems. This study investigates the influence of liquid natural rubber latex on the mechanical properties and water–cement interaction of conventional concrete with a focus on the environmental impact. Concrete mixtures were made using 0%, 5%, 7.5%, and 10% by volume of latex. Compressive and flexural strength tests were performed at 28 days to evaluate structural performance. The results show that increasing the latex content consistently decreases mechanical characteristics. Compressive strength dropped by roughly 10%, 18% and 26% and flexural strength reduced by 8%, 14% and 20% with 5%, 7.5% and 10% latex additions accordingly. This behavior is related to the involvement of latex as an extra fluid phase which affects the effective water–cement ratio, modifies hydration and leads to increased porosity and weaker bonding within the concrete matrix. From an environmental perspective, natural rubber latex provides advantages as a renewable and biodegradable resource that can lessen dependence on synthetic admixtures. However, the decline in mechanical performance suggests potential trade-offs, including reduced durability and greater material demand over the service life. The results imply that the latex application in concrete should be carefully regulated or supplemented with stabilizing materials to attain the best results. In conclusion, this study emphasizes the necessity to reconcile environmental benefits and engineering needs in the development of bio-based construction materials, especially in tropical settings.
Optimization of Coconut Fiber and Styrofoam Composition in Concrete to Improve Strength and Sound Absorption Purwanto; Ferry Firmawan; Fahrudin Ahmad; Hani Purwanti; Aimmatul Husna; Nadirah Darus; Zaiton Haron; Khairulzan Yahya
Advance Sustainable Science Engineering and Technology Vol. 8 No. 2 (2026): February-April
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v8i2.2752

Abstract

This study aimed to evaluate the effect of coconut husk and Expanded Polystyrene (EPS) composition on the mechanical and acoustic properties of lightweight concrete. The research was conducted experimentally using a two-way factorial design with coconut husk variations of 0%, 0.5%, 1%, 1.5%, and 2% of cement weight and EPS variations of 0%, 10%, 20%, and 30% of coarse aggregate volume. A total of 20 mix variations (5 coir levels × 4 EPS levels) were prepared with three replications for each test, resulting in 120 specimens. Compressive strength was tested at 7 days following ASTM C39, while sound absorption was measured at frequencies of 100–2000 Hz based on ISO 10534-2. The results showed that the addition of coconut husk up to 1% improved compressive strength through fibre reinforcement, whereas increasing EPS content enhanced sound absorption due to higher porosity but reduced mechanical strength. Statistical analysis using ANOVA (R² = 0.94, p < 0.05) and desirability optimisation identified the optimal composition at 1% coconut husk and 10% EPS. The developed lightweight concrete is suitable for non-structural building components requiring improved acoustic performance and reduced weight.
Karakterisasi Peluruhan Energi Akustik (Reverberation Time) pada Beton Ringan Berbasis Material Biokomposit Fahrudin Ahmad; Purwanto
Jurnal Pengembangan Rekayasa dan Teknologi Vol. 10 No. 1 (2026): Mei (2026)
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/jprt.v10i1.14206

Abstract

Permasalahan kebisingan di lingkungan perkotaan menuntut pengembangan material konstruksi yang tidak hanya kuat secara struktural tetapi juga memiliki kinerja akustik yang baik. Penelitian ini bertujuan menganalisis karakteristik waktu dengung (reverberation time) pada beton akustik berbasis sabut kelapa dan styrofoam sebagai material ramah lingkungan. Metode yang digunakan adalah eksperimen melalui pengujian langsung pada ruang nyata dengan parameter T20, T30, dan early decay time (EDT) pada rentang frekuensi 100–3150 Hz. Hasil menunjukkan bahwa nilai T20 berkisar antara 1,09–1,87 detik dan T30 antara 1,15–1,82 detik, dengan kecenderungan menurun pada frekuensi tinggi hingga 0,97–1,24 detik. Nilai waktu dengung yang diperoleh berada di bawah 2 detik, menunjukkan kemampuan material dalam menyerap energi bunyi secara efektif. Dengan demikian, beton berbasis sabut kelapa dan styrofoam berpotensi sebagai solusi material akustik berkelanjutan untuk meningkatkan kualitas kenyamanan ruang.
Peningkatan Kapasitas Siswa SMA Institut Indonesia tentang Penulisan Ilmiah Bertemakan Green Building Hani Purwanti; Ferry Firmawan; Hendra Masvika; Purwanto
Jurnal Pengabdian KOLABORATIF Vol. 4 No. 1 (2026): January
Publisher : Faculty of Engineering, Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/kolaboratif.v4i1.12727

Abstract

The increasing human activities and climate change have significantly contributed to global warming, which threatens environmental sustainability. The construction sector is one of the major contributors to environmental degradation and climate change due to its high carbon emissions. As a solution, the implementation of the green building concept has been developed. This concept emphasizes the use of renewable energy and the application of zero-energy-use principles. This condition creates opportunities for students of SMA Institut Indonesia Semarang to produce scientific articles and academic writings related to green building. This activity aims to improve students’ abilities in writing scientific articles on green building themes that align with environmental and sustainability issues. The methods applied include lectures, discussions, and simulations. The pre-test and post-test results indicate an increase in participants’ understanding from 43.75% to 81.25% regarding green building concepts and scientific writing. This improvement serves as an indicator of the program’s success. The activity received positive responses and full support from the school, and it had a beneficial impact on enhancing students’ fundamental understanding of scientific writing, particularly in the green building topics that are highly relevant to current environmental issues.
Co-Authors Adolf Situmorang AGUS MULDIYANTO Aimmatul Husna Fahrudin Ahmad Ferry Firmawan Hani Purwanti Khairulzan Yahya Lintang Enggartiasto Masvika, Hendra Mudjiastuti Handajani Nadirah Darus Nur Fithriani F. Cholida Talitha Zhafira Trias Widorini Zaiton Haron