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All Journal Teknisia RACIC : Rab Construction Research INSIST (International Series on Interdisciplinary Research) JURNAL SAINTIS Nusantara Hasana Journal STATIKA: Jurnal Teknik Sipil Jurnal Pengabdian Masyarakat Bhinneka Jurnal Pengabdian Masyarakat Bangsa
Apriwelni, Siska
Institut Teknolgi Sumatera
Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Bantuan Teknis Desain Konstruksi Beton Non-Struktural Berbasis Pemanfaatan Limbah Industri Batching Plant dan Asphalt Mixing Plant untuk Mendukung Infrastruktur Berkelanjutan Ribowo, Anggarani Budi; Maini, Miskar; Sihombing, Tera Melya Patrice; Yuliyanto, Andry; Zhafira, Elian; P, Kirtinanda; Novalina, Winny; Rahma, Siti; Marina, Bernaditha Catur; Sitepu, Arif Rahman Hakim; Apriwelni, Siska; Kiranaratri, Ayudia Hardiyani; Sari, Dian Perwita; Utami, Erdina Tyagita; Tambunan, Hermon Frederik
Jurnal Pengabdian Masyarakat Bhinneka Vol. 4 No. 3 (2026): Bulan Februari
Publisher : Bhinneka Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58266/jpmb.v4i3.1233

Abstract

Industri konstruksi seperti batching plant dan Asphalt Mixing Plant (AMP) menghasilkan limbah berupa sisa beton mengeras, slurry pencucian mixer, agregat terkontaminasi semen, serta residu aspal halus yang berpotensi menimbulkan dampak lingkungan apabila tidak dikelola dan dimanfaatkan secara optimal. Kegiatan pengabdian kepada masyarakat ini bertujuan mendukung penerapan infrastruktur berkelanjutan melalui optimalisasi pemanfaatan limbah konstruksi sebagai bahan baku alternatif beton non-struktural. Program dilaksanakan melalui tahapan identifikasi jenis dan volume limbah (±1–2 ton per minggu), pengolahan awal (pengeringan, penghancuran, dan pengayakan), perancangan komposisi campuran (mix design), pencetakan produk, curing selama 28 hari, serta pengujian kuat tekan dan daya serap air. Hasil perancangan menghasilkan batako berdimensi 40 × 20 × 10 cm, paving block 20 × 10 × 6 cm, serta saluran beton pracetak dengan lebar 40–85 cm dan tinggi 45–60 cm. Secara teknis, agregat limbah batching plant efektif sebagai substitusi parsial agregat alami, sedangkan residu AMP berfungsi sebagai filler yang meningkatkan kepadatan dan menurunkan porositas beton. Produk yang dihasilkan memenuhi kriteria mutu beton non-struktural untuk aplikasi pagar, perkerasan pejalan kaki, dan saluran drainase kawasan industri skala kecil–menengah maupun saluran irigasi. Kegiatan ini berkontribusi pada pengurangan timbulan limbah, efisiensi biaya material, serta penguatan prinsip ekonomi sirkular dalam pembangunan infrastruktur berkelanjutan.
PEMANFAATAN LIMBAH FLY ASH DAN ZEOLITE PADA AKTIVASI KIMIA DENGAN TAMBAHAN SUPERPLASTICIZER SEBAGAI BAHAN PENGGANTI SEMEN PADA BETON GEOPOLYMER Siska Apriwelni; Ahmad Yudi; Nugraha Bintang Wirawan; Kirtinanda P; Muhammad Abi Berkah Nadi; Siti Rahma; Hendrawan Hendrawan
Racic : Rab Construction Research Vol. 10 No. 2 (2025): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i2.7331

Abstract

The increasing production of Portland cement contributes significantly to global warming; therefore, the utilization of Fly Ash waste and natural Zeolite as alternative binders in concrete production is worth considering. This research was conducted experimentally using class F Fly Ash as the primary binder with Natural Zeolite substitutions of 0%, 5%, 10%, 15%, and 20%. The activators employed were NaOH 10M and Na₂SiO₃ with a ratio of 1:2 for Fly Ash, and NaOH 1M and HCl 1M for Zeolite. Tests included compressive strength, unit weight, and slump test on cylindrical specimens cured for 28 days. The results showed that a 15% Zeolite substitution achieved the optimum compressive strength of 34.80 MPa (NaOH 1M) and 33.74 MPa (HCl 1M), representing a 28.13% and 24.22% increase compared to GPC NZ 0%. The unit weight of geopolymer concrete was generally lower than that of normal concrete but increased with higher Zeolite content. In terms of cost, geopolymer concrete was 36.51% more expensive than normal concrete; however, its improved mechanical performance and physical properties make the Fly Ash–Zeolite combination a viable and environmentally friendly binder alternative
EVALUASI KINERJA RUAS JALAN AKIBAT PENERAPAN SISTEM JALAN SATU ARAH MENGGUNAKAN SIMULASI MIKROSKOPIK PTV VISSIM (STUDI KASUS: JALAN IMAM BONJOL KOTA BANDAR LAMPUNG) Siti Rahma; Michael; Aulia Maharani; Ayu Kamila Khanza; Siska Apriwelni
Racic : Rab Construction Research Vol. 10 No. 2 (2025): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v10i2.7345

Abstract

This study evaluates the existing conditions of the Jalan Imam Bonjol along with the three intersections’ performance located within the corridor. The existing condition of the road segment was analyzed using PKJI 2023. The degree of saturation was found to be 0.38 on weekdays, while it was 0.52 on weekends. Although the road segment is not saturated yet, the operational speed data on weekdays show values of 5.3 km/h in the east–west direction and 4.9 km/h in the west–east direction. Meanwhile on weekends, the operational speeds are 6.4 km/h in the east–west direction and 4.9 km/h in the west–east direction. The operational vehicle speeds during peak hours are below the average speed of urban roads according to PKJI 2023, which is 20–50 km/h. Therefore, this study implements a traffic engineering by applying one-way system on one of the intersection approaches, namely Jalan Pisang, through microscopic simulation using the PTV VISSIM. The simulation of the existing condition shows the operational average speed reached 7.43 km/h, average delay was 11.31 seconds, and the average queue length was 4.04 m. Meanwhile, the one-way system simulation on Jalan Pisang resulted in significant changes, namely the average speed reached 7.62 km/h, the average delay amounted to 9 seconds, and the average queue length was equal to 3.82 m. This indicates that the traffic engineering scenario has the potential to improve the performance of the road segment and intersections.
PENGARUH VARIASI KADAR SERAT BAJA TERHADAP WORKABILITY DAN KARAKTERISTIK MEKANIK BETON FC' 30 MPA Siska Apriwelni; Kirtinanda P; Ayu Sinta Aprilia; Anggarani Budi Ribowo; Kevin Chandra Nurwadji; Fadillah Anisa Pandia
Racic : Rab Construction Research Vol. 11 No. 1 (2026): JUNI
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v11i1.8116

Abstract

This study analyzes the effect of steel fiber addition on the workability, compressive strength, and split tensile strength of f’c 30 MPa concrete. Steel fiber contents of 0%, 5%, and 7% by total weight of concrete mix materials (equivalent to 0, ±112.4, and ±157.4 kg/m³, respectively) were investigated. Thirty-six cylindrical specimens (Ø15 cm × 30 cm) were tested at 7 and 28 days per SNI 7656:2012. Steel fiber addition significantly reduced slump values (7.5, 5.0, and 3.0 cm), decreased 28-day compressive strength from 31.97 MPa to 26.79 MPa (5%) and 23.39 MPa (7%), and increased split tensile strength from 2.45 MPa to 4.29 MPa (5%) and 4.20 MPa (7%). One-way ANOVA confirmed significant differences among variations (compressive strength: F = 34.86 > Fₜₐₕₑ = 5.14, α = 0.05; split tensile strength: F = 12.97 > Fₜₐₕₑ = 5.14, α = 0.05). The 5% steel fiber variation proved most effective, delivering the highest tensile strength improvement while maintaining acceptable workability.
PREDIKSI NILAI CBR LABORATORIUM BERDASARKAN PARAMETER INDEKS TANAH (ATTERBERG LIMIT, SPESIFIC GRAVITY) DAN DATA PEMADATAN PROCTOR Arif Rahman Hakim Sitepu; siti rahma; Erdina Tyagita Utami; siska apriwelni; Putri Ayu Dwiyana
STATIKA: Jurnal Teknik Sipil Vol. 11 No. 2 (2025): STATIKA: JURNAL TEKNIK SIPIL
Publisher : Politeknik Raflesia Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53494/jts.v11i2.1221

Abstract

Penelitian ini menggunakan metode regresi linier berganda (Multiple Linear Regression Analysis/MLRA) untuk memprediksi nilai California Bearing Ratio (CBR) dalam kondisi tidak jenuh (unsoaked) berdasarkan parameter parameter tanah hasil pengujian laboratorium, yaitu batas Atterberg (LL, PL, PI), berat jenis tanah (Specific Gravity/Gs), serta parameter pemadatan standar Proctor seperti MDD dan OMC. Seluruh pengujian dilakukan sesuai dengan standar ASTM yang berlaku. Hasil analisis regresi linier sederhana (SLRA) menunjukkan bahwa nilai koefisien determinasi (R²) yang diperoleh masih tergolong rendah, masing-masing sebesar 0,2504 untuk LL, 0,6989 untuk PL, 0,2326 untuk PI, 0,0829 untuk Gs, 0,3427 untuk MDD, dan 0,0917 untuk OMC. Nilai-nilai ini mengindikasikan bahwa model SLRA belum mampu menggambarkan hubungan yang kuat antara masing-masing parameter terhadap nilai CBR. Sebaliknya, hasil regresi linier berganda menunjukkan bahwa kombinasi parameter LL, PL, dan MDD menghasilkan R² sebesar 1, yang berarti seluruh variasi nilai CBR unsoaked dapat dijelaskan oleh model dengan sangat baik. Model lainnya, yang menggabungkan PI, Gs, dan OMC, juga menunjukkan hasil yang sama dengan nilai R² sebesar 1. Oleh karena itu, dapat disimpulkan bahwa metode MLRA jauh lebih akurat dan dapat diandalkan untuk memprediksi nilai CBR dibandingkan SLRA, serta berpotensi menghemat waktu dan biaya dalam proses perencanaan dan evaluasi teknis pada proyek infrastruktur jalan.
Co-Authors Ade Prayoga Nasution Ahmad Yudi Alexander, Rionaldo Alfinna Mahya Ummati Alfinna Mahya Ummati, Alfinna Mahya Amantawidya Durratul Hikmah Andrew Andonia First Purba Andry Yuliyanto Anggarani Budi Ribowo Annida Evilia Miranda Aprilia, Ayu Sinta Aulia Maharani Ayu Kamila Khanza Ayu Sinta Aprilia Ayudia Hardiyani Kiranaratri Budi Ribowo, Anggarani Cahyo Agung Saputra Dian Perwita Sari Ekaputra, Reza Asriandi Erdina Tyagita Utami Fadillah Anisa Pandia Fadillah Sabri Fathurrahman, Arif Fauzan . Febrin Anas Ismail Fitriana, Indri Rahmandhani Galih Rio Prayogi Hendrawan Hendrawan Ilpandari, Ilpandari Imelia Faradiza Jauhari, Zev Al Julita Hayati Junita Eka Susanti Kartinanda P. Kevin Chandra Nurwadji Khanza, Ayu Kamila Kirtinanda P M Gilang Indra Mardika M. Abi Berkah Nadi Marina, Bernaditha Catur Michael Michael Michael Miskar Maini Nadi, Muhammad Abi Berkah Nadi, Muhammad Abi Berkah Novalina, Winny Nugraha Bintang Wirawan Nugraha Bintang Wirawan P Kirtinanda Putri Ayu Dwiyana Putri Ayu Dwiyana Rahmat Kurniawan Sihombing, Tera Melya Patrice Sitepu, Arif Rahman Hakim Siti Rahma Siti Rahma Siti Rahma Syahidus Syuhada Tambunan, Hermon Frederik Utami, Erdina Tyagita Zhafira, Elian