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All Journal Fondasi: Jurnal Teknik Sipil Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil BANGUN REKAPRIMA Teras Jurnal JOURNAL OF CIVIL ENGINEERING, BUILDING AND TRANSPORTATION Elektrika Jurnal Abdimas Bina Bangsa Teknika Jurnal Teknik Sipil Institut Teknologi Padang Jurnal Riptek Cakrawala: Jurnal Pengabdian Masyarakat Global Jurnal Pengabdian Kolaborasi dan Inovasi IPTEKS Jurnal Civil Engineering Study Jurnal Pengabdian KOLABORATIF Journal of Research and Technology Studies Emitor: Jurnal Teknik Elektro Jurnal Teknik Sipil Jurnal Teknik Sipil
Diah Setyati Budiningrum
Universitas Semarang
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Social Sciences Transportation Other

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Inovasi Teknologi SCGC (Self Compacting Geopolymer Concrete) Sebagai Material Berkelanjutan Anik Kustirini; Dhamang Budi Cahyono; Bambang Purnijanto; Diah Setyati Budiningrum
Teras Jurnal : Jurnal Teknik Sipil Vol. 16 No. 1 (2026): Teras Jurnal
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v16i1.1334

Abstract

Abstrak   Beton geopolimer merupakan beton tanpa semen sebagai bahan pengikat, dipandang sebagai solusi mengatasi pemanasan global akibat produksi semen portland dan alternatif pengganti beton konvensional. Beton geopolimer segar memiliki kekentalan kaku yang tidak workable, padahal workability sangat dibutuhkan dalam proses pengecoran di lapangan. Untuk mengatasi masalah ini, dikembangkan inovasi Self Compacting Concrete (SCC) yang dapat memadat sendiri tanpa alat pemadat. Beberapa metode untuk mendapatkan sifat self compacting meliputi pengaturan kadar agregat, rasio air, dan penggunaan superplasticizer. Penambahan superplasticizer membuat geopolimer lebih workable dengan setting time lebih lama. Pengujian menggunakan slump flow, v funnel, dan box test. Penelitian ini menganalisis kinerja Self Compacting Geopolymer Concrete (SCGC) menggunakan fly ash PLTU Tanjungjati B sebagai pengganti semen. Hasil pengujian menunjukkan campuran berhasil diformulasikan sebagai SCGC berperforma tinggi dengan keseimbangan sangat baik antara fluiditas, stabilitas, dan kemampuan melewati celah sempit. Beton ini efektif untuk aplikasi pada elemen struktur dengan geometri rumit dan penulangan padat, berpotensi meningkatkan efisiensi konstruksi, mengurangi pemadatan mekanis, dan menjamin kepadatan optimal di seluruh struktur.   Kata kunci: SCGC, Fly ash, Slump Flow, V Funnel, Box test   Abstract   Geopolymer concrete is concrete without cement as a binding material, seen as a solution to global warming caused by Portland cement production and an alternative to conventional concrete. Fresh geopolymer concrete has a stiff consistency that is not workable, even though workability is very much needed in the casting process in the field. To overcome this problem, Self Compacting Concrete (SCC) innovation has been developed, which can compact itself without compaction tools. Several methods to obtain self-compacting properties include adjusting the aggregate content, water ratio, and the use of superplasticizers. The addition of superplasticizers makes geopolymers more workable with a longer setting time. Testing was carried out using slump flow, V-funnel, and box tests. This study analyzes the performance of Self-Compacting Geopolymer Concrete (SCGC) using fly ash from the Tanjungjati B power plant as a cement substitute. The test results show that the mixture was successfully formulated as high-performance SCGC with an excellent balance between fluidity, stability, and the ability to pass through narrow gaps. This concrete is effective for applications in structural elements with complex geometries and dense reinforcement, potentially increasing construction efficiency, reducing mechanical compaction, and ensuring optimal density throughout the structure.   Keywords: SCGC, Slump Flow, V-Funnel, Box Test
RANCANG BANGUN AUTOMATIC RAIN RECORDING (ARR ) BERBASIS DEVELOPMENT BOARD MIKROAVR128 Andi Kurniawan Nugroho; Edy Susilo; Diah Setyati Budiningrum
Elektrika Vol. 9 No. 1 (2017): April 2017
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (635.43 KB) | DOI: 10.26623/elektrika.v9i1.1107

Abstract

 The right use of rain can provide many benefits. For this reason, mapping of rainfall areas is needed. This is intended to determine the level of disaster preparedness for each region. In mapping, a tool is needed to calculate the rainfall that falls. In the market there are only manual measuring devices, while rainfall gauges are not available which can measure automatically and directly but additional equipment is needed separately. In addition, the measurement results cannot be seen by the public. Therefore we need a tool that works automatically that can display measurement results directly and can be seen directly by the public. Thus the community can see and measure rainfall that falls. In this plan Automatic Rain Recording is used by using a proximity sensor placed on top of a measuring cup and the sensor is connected to the AVR128 Development Board as the control center to convert sensor data into ADC (Analog to Digital Converter) data. This tool is connected with a microSD with a capacity of 8Gbyte to store rainfall level data. AVR128 will store every 2 minutes with a total of 275,368 data and 382 days of storage capability.Keywords : rainfall, ARR, ADC, AVR128, mikroSD  
Edukasi dan Pemberdayaan Masyarakat Kampung Pancasila Tlogosari Kulon melalui Pilah Sampah Eco-Enzim Biopori dan Komposter Mudjiastuti Handajani; Istianah Istianah; Diah Setyati Budiningrum; Hani Purwanti
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.v4i1.13163

Abstract

Population growth has led to a significant increase in solid waste generation. In Semarang City, approximately 1,110 tons of waste are produced daily. One of the waste management initiatives implemented by the Environmental Agency is the waste bank program. However, this program has not yet been implemented in all areas. In Tlogosari Kulon Subdistrict, for example, no active waste bank group currently operates the program, despite the area being a densely populated residential zone and a flood-prone area. This condition contributes to environmental pollution, unpleasant odors, and potential disease transmission. Through this community service program, it is expected that residents of Kampung Pancasila Tlogosari Kulon will not only gain knowledge but also develop practical skills to manage household waste independently. The methods applied include interactive educational approaches and hands-on practice. The results indicate a significant increase in participants’ average level of understanding, from 42% at the initial stage to 86% after the program. This improvement was driven by direct practical activities, including waste segregation, eco-enzyme production, biopore infiltration holes, and composting. Overall, the program successfully enhanced participants’ environmental awareness, enthusiasm, and active involvement in sustainable household waste management.
Pemberdayaan kepada Masyarakat di Bank Sampah Mulya Sejahtera melalui Pilah Sampah Mudjiastuti Handajani; Istianah Istianah; Diah Setyati Budiningrum; Hani Purwanti; Erialdi Bin Syahrial; Safrinal Sofaniadi; Arien Zahra Sal Sabila; Muhammad Khoirul
Jurnal Pengabdian KOLABORATIF Vol. 4 No. 2 (2026): July
Publisher : Faculty of Engineering, Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/kolaboratif.v4i2.15175

Abstract

The main problem in Plalangan Village, Gunungpati Subdistrict, Semarang City, is the low awareness and practical skills of residents in sorting waste at the source and the suboptimal utilization of household composter facilities. This community service activity aims to increase residents' awareness, knowledge, and practical skills in sorting waste and processing organic waste independently. The implementation method applied is participatory training combining interactive education, in the form of socialization regarding the 3R (Reduce, Reuse, Recycle) concept and the Clean Semarang Program, followed by demonstrations and practical simulations of waste sorting using pilot props. The evaluation results showed a highly positive impact, where the participants' average level of cognitive understanding experienced a highly significant increase from 42% in the pre-test to 86% in the post-test. Furthermore, residents successfully mastered practical skills in upstream waste sorting, creating biopori infiltration holes, and operating simple composters. These skills are useful for converting organic waste into compost to support the greening of household yards while simultaneously improving the local community's economic value through the Mulya Sejahtera Waste Bank. In conclusion, the training program in this village has proven effective in transforming community behavior toward sustainable and independent household-based waste management.
Co-Authors Abdurrahman, Abbas Adwin Pramana, Dio AGUS MULDIYANTO Ahmad Hakim Bintang Kuncoro Andhika Wibisono, Mahal Andi Kurniawan Anik Kustirini, Anik Ari Endang Jayati Arien Zahra Sal Sabila Bambang Purnijanto Bambang Tutuko Bambang Tutuko Dhamang Budi Cahyono Edy Susilo Edy Susilo, Edy Erialdi Bin Syahrial Ferry Firmawan Hani Purwanti Harmini Iin Irawati Istianah Istianah Kukuh Wisnuaji Widiatmoko Mahasukma, Devinda Mudjiastuti Handajani Muhammad Khoirul Pramsetya, Alviola Parentika Purnijanto, Bambang Ratna Chuswatun Kholifah Rindang Aldhyantie Safrinal Sofaniadi Salsabila, Cindy Setyowati , Alfira Susilo , Edy Talitha Zhafira Utama, Tegar Yogha Wibisono, Mahal Andhika