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Perencanaan Lapis Fondasi Daur Ulang Menggunakan Lapis Fondasi Atas dan Lapis Aspal Eksisting Diyanti Diyanti; Andi Asnur Pranata; Ellysa Ellysa; Sri Indah Setiyaningsih
Prosiding Seminar Nasional Ilmu Teknik Vol. 1 No. 1 (2024): Juni : Prosiding Seminar Nasional Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/prosemnasproit.v1i1.8

Abstract

The current technology for using recycled materials in road preservation work is very helpful in maintaining the sustainability of the materials used. Waste from road materials that will be repaired can be reused for new foundation layers. The aim of this research is to obtain a design for the percentage of cement, percentage of emulsified asphalt, unconfined compressive strength and optimum water content in accordance with the applicable engineering specifications so that it can be proven that the existing material from the top foundation layer and asphalt layer can still be used as a new foundation layer. The research method involves conducting experiments on existing materials by conducting laboratory tests on samples of top foundation layer aggregate and existing asphalt in the Cikarang Industrial Area. The experiment was carried out at the Jakarta State Polytechnic Civil Engineering Laboratory with 9 test samples. The results obtained for the recycled foundation layer were that the design cement required was 30.8 grams and 53.1 grams of emulsified asphalt for an area of ​​1m2 with a 7 day unconfined compressive strength obtained from nine samples for variations in cement content of 1%, 3%, and 5% maximum 2.81MPa, so the optimum cement content is 3.6%.
Green Nanotechnology and Nanomaterials for Sustainable Development Goals (SDGs) Abdul Mujahid Hamdan; Yunasar; Muttaqin; Sri Indah Setiyaningsih
JKA Vol. 2 No. 1 (2025): JKA
Publisher : Bansigom Na Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26811/fd5gvk27

Abstract

Green nanotechnology and nanomaterials present innovative solutions to address global sustainability challenges. Their applications span renewable energy, water purification, agriculture, and healthcare, contributing to the achievement of Sustainable Development Goals (SDGs). This article explores the principles of green nanotechnology, methodologies for sustainable nanomaterials synthesis, and their impact on SDGs. Experimental results highlight the effectiveness of green nanomaterials in enhancing energy efficiency and environmental remediation. The findings underscore the transformative potential of nanotechnology in fostering sustainable development.
Pelatihan Pembuatan Pupuk Cair Berbasis Zero Waste Dengan Memanfaatkan Limbah Dapur Nasi Basi Dan Teh Celup Bekas Pada Warga Belajar Di Pendidikan Non Formal Jelita; Sri Indah Setiyaningsih; Febrina Dian Kurniasari; Adja Muhammad Daud
Seumike : Society Progress Journal Vol. 1 No. 2 (2025): SEUMIKE
Publisher : Bansigom Na Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Limbah organik rumah tangga seperti nasi basi dan teh celup bekas sering dibuang tanpa pengelolaan, padahal berpotensi diolah menjadi pupuk cair organik. Namun, warga belajar di PKBM masih memiliki kesadaran dan keterampilan yang rendah dalam pemanfaatan limbah tersebut secara produktif. Kegiatan pengabdian ini bertujuan untuk meningkatkan pengetahuan dan keterampilan warga belajar PKBM Salsabila Kota Langsa dalam mengolah limbah dapur menjadi pupuk cair berbasis prinsip zero waste. Metode pelatihan dilakukan secara partisipatif melalui ceramah, demonstrasi, dan praktik langsung. Pengabdian dilakukan pada 30 orang warga belajar pada PKBM Salsabila Kota Langsa dan Hasil evaluasi menunjukkan peningkatan nilai pemahaman peserta dari rata-rata 30 (pre-test) menjadi 80 (post-test). Sebanyak 70% peserta berhasil melakukan praktik secara mandiri dengan hasil fermentasi yang menunjukkan kualitas pupuk cair yang baik. Temuan ini menunjukkan bahwa pendekatan pelatihan yang berbasis kontekstual dan praktik langsung sangat efektif diterapkan di pendidikan nonformal untuk membangun keterampilan, kesadaran lingkungan, dan pemberdayaan warga belajar.