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Effect of Carbon Nanotubes and Graphene Oxide on the Hydration Characteristics and Compressive Strength of Cement Mortar with High Volume Fly Ash Maizuar, Maizuar; Maulani, Emi; Usrina, Nura; Ersa, Nanda Savira; Sofyan, Sofyan; Mahmudy, Ash Shiddiq; Prasetia, Gigih
International Journal of Engineering, Science and Information Technology Vol 5, No 1 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i1.648

Abstract

High-volume fly ash (HFVA) in cement mortar has gained attention due to its potential to reduce environmental impact and enhance sustainability. However, HVFA mortar often exhibits reduced initial compressive strength compared to conventional mortars. Incorporating carbon nanotubes (CNT) and Graphene oxide (GO) has been shown to enhance the mechanical properties and microstructure of the mortar, which can overcome the shortcomings of HVFA. This study investigates the effect of CNT and GO on compressive strength and cement hydration of HVFA mortar. This study used fly ash as a 60% cement replacement, with 0.01% CNT and GO contents of 0.01%, 0.02%, 0.03%, 0.04%, and 0.05%. Compressive strength tests were performed at 3, 7, and 28 days of curing. The results showed that adding CNT and GO improved the compressive strength by 15.4% over the control mortar at 0.01% CNT and 0.03% GO. Most importantly, incorporating CNT and GO mitigated the typical reduction in initial compressive strength, with around a 15% increase observed at 3 and 7 days compared to the control mortar. The cement hydration characteristics were analyzed using X-ray diffraction (XRD), which revealed the presence of various crystallization phases, including calcium silicate hydrate (C-S-H), calcium aluminate silicate hydrate (C-A-S-H), quartz, portlandite, calcium carbonate, and ettringite. Adding CNT and GO to HVFA mortar significantly enhances its mechanical properties. It promotes the formation of complete chemical bonds in the cement hydration process, improving the mortar's overall performance.
The Effect of Carbon Nanotubes on the Marshall Characteristics of AC-WC Asphalt Mixture Akbar, Said Jalalul; Maizuar, Maizuar; Muthmainnah, Muthmainnah; Ersa, Nanda Savira; Desmi, Adzuha; Arfiandi, Joni; Adha, Ridwan; Larasati Putri, Ditya
International Journal of Engineering, Science and Information Technology Vol 5, No 1 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i1.690

Abstract

Carbon Nanotubes (CNTs) are cylindrical nanostructures with exceptional mechanical strength, high electrical conductivity, and excellent heat transfer capabilities, making them a promising additive in asphalt mixtures. This study investigates the effect of CNTs on the Marshall parameters of Asphalt Concrete-Wearing Course (AC-WC) mixtures using 60/70 penetration asphalt. CNTs were added to asphalt at 60°C, followed by coarse and fine aggregates preheated to 150°C. Marshall parameter tests were conducted on the samples, and the results showed a significant increase in stability compared to conventional asphalt. Asphalt stability increased by 9%, with the highest value obtained at a CNT concentration of 0.015%, reaching 2177.83 kg. The optimal stability was achieved at a CNT concentration of 0.015%. This study demonstrates that CNTs can be effectively utilized to enhance the performance of AC-WC asphalt mixtures. The flow values decreased as the CNT content increased because CNTs make the asphalt mixture stiffer, improving temperature resistance.
The Efficacy of Anaerobic Biofilter and Pre-Aeration with Microbubble Generator for Tofu Wastewater Treatment Harahap, Juliansyah; Ardhianto, Rachmad; Muliadita, Tiara Sekar; Mahdariza, Fathul; Ersa, Nanda Savira; Ashari, Teuku Muhammad
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 1 (2025): March 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i1.95-108

Abstract

The majority of tofu manufacturers lack the necessary infrastructure to treat wastewater, resulting in the direct discharge of wastewater into water bodies. Such practices have the potential to results in environmental pollution. This study examines the efficacy of combining anaerobic biofilter technology and pre-aeration with a microbubble generator for the treatment of wastewater generated by the tofu industry. The research focused on the impact of hydraulic retention time (HRT) on the reduction of pollutants, specifically chemical oxygen demand (COD), biological oxygen demand (BOD), total suspended solids (TSS), and pH levels. The results indicated that prolonged HRT in the anaerobic biofilter significantly reduces pollutant concentrations. 48-hour HRT achieved reductions of 80.78% for COD, 78.53% for BOD, and 89.25% for TSS, respectively. The integration of a microbubble generator further enhanced treatment efficiency. The combination of a 48-hour anaerobic biofilter and a 180-minute microbubble generator achieved reductions of 93.82% for COD, 93.11% for BOD, and 97.5% for TSS. The effluent consistently met the pH quality standards set by the Indonesian government. The findings suggest the potential for optimizing retention times and combining anaerobic and aerobic treatments to address wastewater challenges in the tofu industry. 
Penerapan Teknologi Digital dalam Optimalisasi Konsep Ekonomi Sirkular Menuju Green Economy di Desa Blang Asan Zainal, Zara Yunizar; Usrina, Nura; Ersa, Nanda Savira; Hasan, Phadlin; Arif H., Nanda Nan
Jurnal SOLMA Vol. 14 No. 1 (2025)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/solma.v14i1.17301

Abstract

und: Blang Asan Village, Peusangan Subdistrict, Bireuen Regency, faces serious challenges in waste management due to low public awareness and limited waste transportation facilities. To address this issue, the village government, in collaboration with BUMDes Asan Jaya and Asri Waste Bank, introduced the Integrated Waste Management (PST) program, supported by the Environmental and Forestry Office (DLHK) of Bireuen Regency. This program utilizes digital technology through the Beclean application and the development of composters for organic waste management. Method: The main activities include socialization, training, technology implementation, community mentoring, and the operation of an Android-based waste management application integrated with the Waste Bank. One of the technologies implemented in this program is the Beclean application, which aims to reduce the amount of waste sent to final disposal sites by utilizing the application for integrated waste management. The program is designed using the SMCR (Source, Message, Channel, Response) communication model to ensure effective information delivery and implementation. Results: Indicate increased community participation in recycling and a reduction in the volume of waste sent to final disposal sites (TPA). Additionally, it has created new economic value by processing waste into useful products. The program's sustainability is ensured through regular evaluations to maintain its positive impact on the community and support Clean and Healthy Living Behavior (PHBS), including empowering the community to recycle waste into economically valuable products. Conclusions: Through this initiative, it is hoped that a circular economy system can be realized, enhancing economic growth through household waste management while minimizing environmental damage.
INTERVENSI SOSIAL : PENINGKATAN PENGETAHUAN DAN SIKAP MASYARAKAT TERHADAP SIMULASI KESIAPSIAGAAN DALAM MENGHADAPI BENCANA BANJIR DI DESA CIBREK PIRAK, MATANGKULI, ACEH UTARA Akbar, Teuku Ilhami Surya; WMS, Hendra; Ersa, Nanda Savira; Putra, Hafis Pratama; Ritchie, Niken
Jurnal Vokasi Vol 8, No 1 (2024): Maret
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/vokasi.v8i1.4581

Abstract

Indonesia memiliki resiko tinggi bencana banjir yang dapat menimbulkan berbagai kerugian di segala aspek seperti penduduk, pemerintahan, ekonomi, sarana dan prasarana serta lingkungan, sehingga diperlukan upaya untuk meminimalisasi dampak dengan meningkatkan pengetahuan dan sikap masyarakat tentang tindakan penanggulangan banjir di Wilayah Aceh Utara khususnya Desa Cibrek Pirak, Matang Kuli. Tujuan Memberikan pengetahuan, cara sikap dan peningkatan kewaspadaan terhadap banjir di Ds. Cibrek Pirak, Kecamatan Matang Kuli, Aceh Utara. Rangkaian kegiatan dilakukan dengan 2 metode yaitu pemberian materi dengan metode ceramah oleh pemateri lalu, dan  dilanjutkan dengan simulasi kebencanaan menggunakan alat early warning system (EWS). Tingkat pengetahuan dan sikap peserta penyuluhan terkait kesiapsiagaan terhadapa banjir diukur dengan pemberian kuesioner. Berdasarkan hasil evaluasi, tingkat pengetahuan masyarakat akan kesiapsiagaan menunjukan 48% responden memiliki pengetahuan yang baik dan untuk sikap terhadap banjir menunjukan respon positif dengan persentase 92%. Hal ini menunjukan bagaimana pengetahuan dan sikap masyarakat Cibrek Pirak terhadap kesiapsiagaan banjir tergolong baik
Analisis Pengaruh Lubang Resapan Biopori Dalam Upaya Konservasi Air Terhadap Genagan Air Minimal Di Gampong Rayeuk Kareung Hasan, Phadlin; Hidayat, Adrian Adi; Ersa, Nanda Savira; Maulana, Rahmatul
Teras Jurnal : Jurnal Teknik Sipil Vol. 15 No. 1 (2025): Volume 15 Nomor 1, Maret 2025
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v15i1.1206

Abstract

Abstrak Lubang resapan biopori merupakan teknologi yang dirancang untuk meningkatkan daya serap tanah terhadap air, sehingga menjadi solusi yang efektif dalam upaya konservasi air dan pengurangan genangan air di permukaan tanah. Penelitian ini dilaksanakan di Gampong Rayeuk Kareung, Kecamatan Blang Mangat, Kota Lhokseumawe, dengan menggunakan metode pengukuran laju infiltrasi pada 6 sampel tanah bervegetasi di lapangan. Pengujian dilakukan dengan pipa berdiameter 10 cm dan kedalaman 100 cm, di mana 3 sampel diuji tanpa isian dan 3 sampel lainnya diisi sampah organik. Hasil pengujian menunjukkan laju infiltrasi rata-rata pada sampel tanpa isian sebesar 60,10 mm/jam dan 66,02 mm/jam pada sampel dengan isian sampah dedaunan. Dari analisis debit limpasan, diketahui bahwa LRB mampu menyerap air dengan debit sebesar 0,1629 m³/detik, sementara debit limpasan awal tanpa adanya LRB mencapai 0,1901 m³/detik. Dengan pemasangan lubang resapan biopori ini, terjadi pengurangan debit limpasan hingga 85,69%, yang menunjukkan potensi signifikan LRB dalam mengurangi genangan, meningkatkan daya serap tanah, dan mengelola air permukaan secara berkelanjutan di wilayah tersebut. Kata kunci: Debit Limpasan, Infiltrasi, Konservasi Air, Lubang Resapan Biopori  Abstract Biopore Infiltration Holes are a technology designed to enhance the soil's absorption capacity for water, making it an effective solution for water conservation efforts and reducing surface water pooling. This research was conducted in Gampong Rayeuk Kareung, Blang Mangat District, Lhokseumawe City, using the infiltration rate measurement method on 6 vegetated soil samples in the field. The testing was performed using pipes with a diameter of 10 cm and a depth of 100 cm, where 3 samples were tested without any fill and the other 3 samples were filled with organic waste. The test results showed an average infiltration rate of 60.10 mm/hour for the samples without fill and 66.02 mm/hour for the samples filled with leaf waste. From the runoff discharge analysis, it was found that the biopore infiltration holes (BII) can absorb water with a discharge of 0.1629 m³/second, while the initial runoff discharge without BII reached 0.1901 m³/second. The installation of these biopore infiltration holes resulted in a runoff discharge reduction of up to 85.69%, indicating the significant potential of BII in reducing pooling, enhancing soil absorption capacity, and managing surface water sustainably in the area. Keywords: Runoff Discharge, Infiltration, Water Conservation, Biopore Infiltration Holes
Pemanfaatan Arang Tempurung Kelapa Sebagai Substitusi Sebagian Aspal Pada Lapisan Asphalt Concrete-Binder Course (AC-BC) Wesli, Wesli; Yusuf, Ifsan; Widari, Lis Ayu; Ersa, Nanda Savira; Akbar, Said Jalalul
Teras Jurnal : Jurnal Teknik Sipil Vol. 15 No. 2 (2025): Teras Jurnal (September)
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v15i2.1281

Abstract

Abstrak   Tempurung kelapa merupakan limbah padat yang mudah ditemukan tetapi belum termanfaatkan dengan baik. Limbah tempurung kelapa hasil pembakaran susah untuk terurai sehingga akan mencemari lingkungan. Tempurung kelapa memiliki senyawa karbon yang mempunyai kemiripan dengan dengan karbon aspal yang aktif ketika dipanaskan dengan persentase kemiripan sebesar 91% dengan. Karbon adalah senyawa utama penyusun aspal berfungsi sebagai pengikat antar partikel yang beragam. Pemanfaatan senyawa karbon tempurung kelapa diharapkan dapat mengurangi limbah padat dan meningkatkan mutu serta kualitas aspal pada lapisan Asphalt Concrete-Binder Course (AC-BC). Tujuan penelitian ini untuk mengetahui variasi Arang Tempurung Kelapa (ATK) yang dapat dimanfaatkan untuk memenuhi parameter marshall pada lapisan Asphalt Concrete-Binder Course (AC-BC). Metode penelitian adalah metode eksperimental dengan metode deduktif. Hasil penelitian variasi ATK sebesar 5%, 10% dan 15% dengan benda uji setiap variasi sebanyak 3 sampel dan total benda uji variasi Arang Tempurung Kelapa (ATK) adalah 9 benda uji diperoleh hasil pengujian parameter marshall dengan seluruh variasi benda uji dapat dimanfaatkan pada campuran perkerasan jalan dan telah memenuhi seluruh Spesifikasi Umum Bina Marga 2018 Revisi 2.   Kata kunci: Arang Tempurung Kelapa, Laston AC-BC, Parameter Marshall, Substitusi Sebagian Aspal.   Abstract   Coconut shell is a solid waste that is easy to find but has not been utilized properly. Coconut shell waste from burning is difficult to decompose so it will pollute the environment. Coconut shell has a carbon compound that is similar to asphalt carbon which is active when heated with a similarity percentage of 91% with. Carbon is the main compound that makes up asphalt and functions as a binder between various particles. The utilization of coconut shell carbon compounds is expected to reduce solid waste and improve the quality of asphalt in the Asphalt Concrete-Binder Course (AC-BC) layer. The purpose of this study was to determine the variation of Coconut Shell Charcoal (ATK) that can be utilized to meet the Marshall parameters in the Asphalt Concrete-Binder Course (AC-BC) layer. The research method is an experimental method with a deductive method. The results of the ATK variation research of 5%, 10% and 15% with 3 samples of each variation test object and the total test object of the Coconut Shell Charcoal (ATK) variation is 9 test objects. The results of the Marshall parameter test with all variations of test objects can be used in road pavement mixtures and have met all of the 2018 General Bina Marga Specifications Revision 2.   Keywords: Coconut Shell Charcoal, Laston AC-BC, Marshall Parameters, Partial Asphalt Substitution
STUDI ANALISIS EFISIENSI DAN KEHILANGAN AIR PADA SALURAN IRIGASI KAMPUNG REJE GURU KECAMATAN BUKIT KABUPATEN BENER MERIAH Fadhliani; Ersa, Nanda Savira; Palaguna, Adhan; Usrina, Nura; Muthmainnah
Lingkar: Journal of Environmental Engineering Vol. 4 No. 1 (2023): LINGKAR : Journal of Environmental Engineering
Publisher : Department of Environmental Engineering (Prodi Teknik Lingkungan), Fakultas Sains dan Teknologi, UIN Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ljee.v4i1.2821

Abstract

D.I. Reje Guru is an open system irrigation network located in Bukit District, Bener Meriah Regency, Aceh Province. Various problems were identified such as cracked lining and wild vegetation around the network. These issues have impact on water losses along the channels’ conveyances through evaporation, seepage, operational factors and leakage. The input – output discharge measurement is used to determine the water loss and the value of the efficiency of water distribution in the Irrigation network. In addition, the evaporation and seepage loss are also calculated to find out the percentage of the loss from these two factors. The results shown that the maximum and minimum loss is from BS3RG and BS4RG which are 0,027 m3/sec and 0,004 m3/sec, respectively. The values are correlated to the efficiency values which are the highest 84,23% from BS4RG and 36,908% from BS3RG. It is confirmed that the two factors of evaporation and seepage are not the significant factor to the conveyance water loss.
A SIMULATION-BASED APPROACH FOR IDENTIFYING AND ANALYZING THE WATER DISTRIBUTION NETWORK OF LHOKSEUMAWE CLEAN WATER SUPPLY Helmy, Iqbal Adinata Setia; Nanda Savira Ersa; Helmy, Wesli; Usrina, Nura; Hafli, T. Mudi
Lingkar: Journal of Environmental Engineering Vol. 6 No. 1 (2025): LINGKAR : Journal of Environmental Engineering
Publisher : Department of Environmental Engineering (Prodi Teknik Lingkungan), Fakultas Sains dan Teknologi, UIN Ar-Raniry Banda Aceh

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

Abstract

Lhokseumawe City faces significant clean water distribution challenges due to increasing demand from population and economic growth. This study aimed to identify and evaluate the performance of the existing water distribution network using WaterCAD V8i. The methodology involved projecting water demand until 2033 based on 10 years of population data and conducting a hydraulic simulation of the current pipeline system. The simulation results showed that the 2023 clean water demand was 84.5 liters per second, with projections showing a significant increase by 2033. The analysis identified critical operational issues, including backflow in pipe segments P-230 and P-235 and extreme pressure loss gradients in others, with segment P-276 reaching 275 psi during peak hours. It was concluded that the network requires optimization to meet future demand efficiently. Improvement recommendations include replacing critical pipes, resetting valves, and adding pressure regulators to optimize flow.