Civil Engineering / İnşaat Mühendisliği

Permanent URI for this collectionhttps://hdl.handle.net/11147/13

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Department: search.filters.department.İzmir Institute of Technology. Civil EngineeringInstitution Author: search.filters.institutionAuthor.Bilgiç, Esra

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  • Review
    Citation - WoS: 25
    Citation - Scopus: 35
    Evolution of Floods: From Ancient Times To the Present Times (ca 7600 Bc To the Present) and the Future
    (MDPI, 2023) Angelakis, Andreas N.; Capodaglio, Andrea G.; Baba, Alper; Bilgiç, Esra; Ahmed, Abdelkader T.; Mandi, Laila; Tzanakakis, Vasileios A.; Kumar, Rohitashw; Min, Zhang; Han, Mooyoung; Bashiru, Turay; Derkas, Nicholas; Baba, Alper; Bilgiç, Esra; 01. Izmir Institute of Technology; 03.03. Department of Civil Engineering; 03. Faculty of Engineering
    Floods are one of the most dangerous natural disasters, causing great destruction, damage, and even fatalities worldwide. Flooding is the phenomenon of a sudden increase or even slow increase in the volume of water in a river or stream bed as the result of several possible factors: heavy or very long precipitation, melting snowpack, strong winds over the water, unusually high tides, tsunamis, or the failure of dams, gages, detention basins, or other structures that hold back water. To gain a better understanding of flooding, it is necessary to examine evidence, search for ancient wisdom, and compare flood-management practices in different regions in a chronological perspective. This study reviews flood events caused by rising sea levels and erratic weather from ancient times to the present. In addition, this review contemplates concerns about future flood challenges and possible countermeasures. Thus, it presents a catalogue of past examples in order to present a point of departure for the study of ancient floods and to learn lessons for preparation for future flood incidents including heavy rainfalls, particularly in urbanized areas. The study results show that ancient societies developed multifaceted technologies to cope with floods and many of them are still usable now and may even represent solutions and measures to counter the changing and increasingly more erratic weather of the present.
  • Article
    Citation - WoS: 2
    Citation - Scopus: 3
    A New Method To Quantify the Robustness of Self-Consolidating Grouts
    (Elsevier, 2019) Erdem, Tahir Kemal; Bilgiç, Esra; Bilgiç, Esra; Erdem, Tahir Kemal; Kanpara Cıvaş, Züleyha; 01. Izmir Institute of Technology; 03.03. Department of Civil Engineering; 03. Faculty of Engineering
    There are different methods in literature to evaluate the robustness of highly fluid cementitious mixtures. However, no one of them gained widely acceptance due to the relative advantages and disadvantages involved in each of them. Therefore, there is still need for further research on this topic. This study proposes a new and relatively easy method for quantifying the robustness of self-consolidating grouts by calculating so-called robustness indices. Due to the more difficulty to produce robust mixtures for highly fluid mixtures obtained by very powerful chemicals, the method is based on the variations in the superplasticizer (SP) type and amount. Mineral admixture (fly ash or limestone powder) usage and water-to-binder ratio (w/b) were other parameters investigated in this study. It was found that SP type was the most important factor affecting the robustness. The effect of w/b was less when compared to SP type. The mixtures containing naphthalene-based SP were more robust than those containing polycarboxylate-based SP. Mineral admixture type and amount had the least effect on robustness. (C) 2019 Elsevier Ltd. All rights reserved.