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All Journal International Journal of Integrated Science and Technology
Amanollah Faqiri
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Computer Science & IT Decision Sciences, Operations Research & Management Education Languange, Linguistic, Communication & Media Social Sciences

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A Comparative Assessment of Uncrushed-River Concrete Mix of Hari-River, and Kamar-Kalaq: the Two Widely Used Concrete Mix in Herat, Afghanistan Alkozay, Arif; Amanollah Faqiri; Noman Moheb; Khalid Ahmad Ahmadi; Sayed Naqibullah Sadat; Mohammad Yaser Saddeqi; Ahmad Fawad Jamshidi; Mir Mohammad rateb Sayedi; Safiullah Mohammadi
International Journal of Integrated Science and Technology Vol. 2 No. 9 (2024): September 2024
Publisher : MultiTech Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59890/ijist.v2i9.2036

Abstract

Concrete, as a cornerstone of modern construction, heavily relies on the quality of its constituent materials, particularly aggregates. This study delves into a comparative analysis of aggregates sourced from two widely utilized riverbed regions, namely Hari-River and Kamar-Kalaq, situated within Herat province, Afghanistan. Given that over 90% of concrete in Herat province is sourced from these two riverbeds, the findings of this study carry immense significance. The research meticulously examines key parameters, including clay content, gradation, aggregate shape, and compressive strength, to determine the optimal choice for concrete production. Methodologically, samples were acquired following ASTM standards, and rigorous testing procedures were conducted, encompassing clay particle analysis, sieve analysis, and strength testing. The results reveal significant disparities between the two regions, with Hari-River demonstrating superior characteristics across various metrics. Particularly noteworthy is Hari-River's lower clay content, superior gradation, and higher compressive strength compared to Kamar-Kalaq.
Evaluating the Seismic Resilience of Newly Constructed Concrete Building in Zinda Jan District After the Devastating October 2023 Earthquake in Herat, Afghanistan Alkozay, Arif; Rahimullah Stankzai; Amanollah Faqiri
International Journal of Integrated Science and Technology Vol. 2 No. 6 (2024): June 2024
Publisher : MultiTech Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59890/ijist.v2i6.2037

Abstract

This study aims to evaluate the impact of the October 2023 earthquake on the Zinda Jan district, focusing on the structural integrity of more than 2000 newly constructed buildings situated near fault lines. The specific objective is to identify any vulnerabilities in the design of these structures. Advanced computer analyses, including Linear and Non-linear (Push-over analysis) assessments using Etabs software, were employed to investigate the structural performance of the buildings. The analysis revealed significant insights into the structural integrity of the new constructions. It was observed that certain central columns exhibited inadequate strength, thereby posing a considerable risk of failure during seismic events. This vulnerability primarily stems from a disparity in strength between columns and beams, with the latter being stronger. This research contributes to the field by emphasizing the critical role of meticulous design and analysis in safeguarding buildings located in earthquake-prone regions.
Co-Authors Ahmad Fawad Jamshidi Alkozay, Arif Khalid Ahmad Ahmadi Mir Mohammad rateb Sayedi Mohammad Yaser Saddeqi Noman Moheb Rahimullah Stankzai Safiullah Mohammadi Sayed Naqibullah Sadat