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All Journal Journal of Engineering and Technological Sciences Jurnal Teknik Sipil Science and Technology Indonesia Syntax Literate: Jurnal Ilmiah Indonesia Tasyri` : Jurnal Tarbiyah-Syari`ah-Islamiyah Jurnal Permukiman Gema Wiralodra Jurnal Teknik Sipil Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Jurnal Indonesia Sosial Teknologi Journal of Engineering and Technological Sciences
Siti Aisyah Nurjannah, Siti Aisyah
Civil Engineering Department, Universitas Sriwijaya, Jalan Raya Palembang ? Prabumulih Km 32 Indralaya,
Aerospace Engineering Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Social Sciences Transportation Other

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Journal : Science and Technology Indonesia

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Effect of the Nano-Silica Addition on the Mechanical Properties of Polymer Concrete Septriansyah, Verinazul; Saloma; Nurjannah, Siti Aisyah; Saggaff, Anis; Usman, Arie Putra; Ngian, Shek Poi
Science and Technology Indonesia Vol. 10 No. 1 (2025): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.1.9-17

Abstract

The latest advances in science and technology have positioned nanomaterials at the vanguard of contemporary research. Nano silica (SiO2) is an illustrative example of a nanomaterial extensively utilized in concrete manufacturing due to its properties as a pozzolan. The objective of this study is to elucidate the characteristics of nano silica and its effect on the performance of polymer concrete through experimental methods. X-ray diffraction (XRD) tests indicate that nano silica exhibits a high amorphous phase. Consequently, nano silica enhances the C-S-H gel formation reaction, producing more robust and denser specimens. The maximum compressive strength reached 45.23 MPa when adding 0.4% nano-silica with a specific gravity of 1573.33 kg/m3. For comparison, concrete without nano silica had a maximum compressive strength of 40.05 MPa with a particular gravity of 1610.67 kg/m3. Observation using a scanning electron microscope (SEM) showed that the nano-silica mixture exhibited excellent particle distribution as an activating agent that could enhance the strength of the specimens. Nevertheless, the observed reduction in compressive strength might be affected by several factors, including particle clusters and the presence of compounds carried by the fine aggregates that influence the mechanical properties of polymer concrete. Integrating nano-silica is pivotal in enhancing the compressive strength and reducing the specific gravity of polymer concrete specimens. The increased strength and decreased specific gravity render nano silica a promising additive for polymer concrete applications.
Effect of Nanosilica Addition and Temperature on Durability of Polymer Mortar in Seawater Environment Septriansyah, Verinazul; Hasyim, Saloma; Nurjannah, Siti Aisyah
Science and Technology Indonesia Vol. 10 No. 3 (2025): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.3.847-855

Abstract

This study examines the effect of nano-silica addition and temperature variation on the durability of polymer mortar exposed to seawater. We investigated three specimen variations: polymer mortar without nanosilica (MP), polymer mortar with 0.4% nanosilica added (MP N 0.4%), and nanosilica polymer mortar with 85◦C heating (MP N 0.4% T 85◦C). Testing methods included cyclic and static immersion for 90 days in Tanjung Pandan, Bangka Belitung, followed by characterization through specific gravity, compressive strength, SEM (Scanning Electron Microscopy), FTIR (Fourier Transform Infrared Spectroscopy), and XRD (X-ray diffraction) analysis. Results showed that 0.4% nano-silica addition combined with 85◦C heating treatment significantly increased compressive strength to 51.78 MPa in cyclic immersion, compared to 38.17 MPa for standard polymer mortar. SEM analysis revealed a more compact microstructure with reduced porosity in nano-silica specimens, while FTIR confirmed the formation of new chemical bonds between the epoxy matrix and silica particles. XRD testing identified the presence of SiO2 crystalline phase and nano-silica distribution in amorphous form throughout the composite matrix. The optimized polymer mortar demonstrated superior durability in seawater environments, maintaining specific gravity stability and resistance to degradation after prolonged immersion, outperforming conventional cementitious materials in marine applications.
Co-Authors Andri Setiawan Anggara, Veron Bella Anis Saggaff Arie Putra Usman Asmarani, Dwi Bambang Budiono Bambang Budiono Bambang Budiono Bambang Utomo Budiono, Bambang Budiono, Bambang Fauzan Hanif, Muhammad Gunawan , Jose Andre Hanafiah Hanafiah, Hanafiah Hanafiah, Hanafiah Hasyim, Saloma Iswandi Imran Lim, Erwin Ma'ruf, Ahmad Muhammada, Muhammada Mulyadi, Asri Nana Pudja Sukmana Ngian, Shek Poi Nurazizah, Ervi Tri Romayni pengelola, pengelola Prasetiya, Muhammad Anggara Adji Rifkah, Rifkah Rosidawani, Rosidawani Saloma Saloma Saptahari Sugiri Saptahari Sugiri Sholikhudin, M. Anang Sugiri, Saptahari Sugiri, Saptahari Sukmana, Nana Pudja Sutanto Muliawan Verinazul Septriansyah Wanda Lestari