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المؤلفSohail, Muazzam Ghous
المؤلفKahraman, Ramazan
المؤلفAl Nuaimi, Nasser
المؤلفAlnahhal, Wael
المؤلفWasee, Muhammad
تاريخ الإتاحة2020-04-30T12:48:26Z
تاريخ النشر2020
اسم المنشورProceedings of the International Conference on Civil Infrastructure and Construction
الاقتباسSohail M. G., Kahraman R., Al Nuaimi N., Alnahhal W., Wasee M., "High and Ultra-high Performance Concretes: A Solution to Reinforced Concrete Durability under Harsh Climate of Arabian Gulf", International Conference on Civil Infrastructure and Construction (CIC 2020), Doha, Qatar, 2-5 February 2020, DOI: https://doi.org/10.29117/cic.2020.0109
الرقم المعياري الدولي للكتاب2958-3128
المعرّفP. O. Box: 2713 Doha-Qatar, Email: qupress@qu.edu.qa
معرّف المصادر الموحدwww.cic.qa
معرّف المصادر الموحدhttp://dx.doi.org/10.29117/cic.2020.0109
معرّف المصادر الموحدhttp://hdl.handle.net/10576/14695
الملخصReinforced concrete (RC) infrastructure in the Arabian Gulf region deteriorates under severe environmental conditions after only short service life. To overcome this problem, it is imperative to employ high-quality concretes and reinforce them with rebars that are corrosion resistant. This paper investigates the durability performance of newly developed high performance concretes (HPC) and ultra-high performance concretes (UHPC). The HPC and UHPC were manufactured using locally available materials in Qatar without employing any special treatment. The durability characteristics of HPC and UHPC in comparison to a normal strength concrete (NSC) were determined. Durability indicators such as concrete resistivity, sorptivity, porosity and resistance to chloride permeability were evaluated in order to access the durability of these concretes. These parameters were also compared to the concrete core samples taken from 30 to 50 years old RC structures in Doha city. The electrical resistivity of HPC and UHPC was 11 and 20 times higher than NSC, respectively. Sorptivity was 2 and 3 times less than NSC, respectively for HPC and UHPC. While the porosity of HPC and UHPC was 2.45 and 1.43% respectively. These newly fabricated concretes showed higher performance in durability testing than the concretes from real structures. With such attributes, the UHPC will be a useful tool in arresting the rapid deterioration of RC structures especially under harsh-climatic conditions of the Arabian Gulf.
راعي المشروعThe funding for this research was provided by the National Priorities Research Program of the Qatar National Research Fund (a member of the Qatar Foundation) under the award no. NPRP 7-410-2-169. The statements made herein are solely the responsibility of the authors and do not necessarily reflect the opinions of the Sponsor.
اللغةen
الناشرQatar Univesrity Press
الموضوعDurability of reinforced concrete infrastructure
High-performance concrete
Ultra-high-performance concrete
Durability indicators of RC structures
العنوانHigh and Ultra-high Performance Concretes: A Solution to Reinforced Concrete Durability under Harsh Climate of Arabian Gulf
النوعConference Paper
الصفحات837-845
ESSN2958-3136
dc.accessType Open Access


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