Residual Flexural Strength of NSC, HSC and LWC Panels Exposed to High Temperatures

This work aims at studying the post–heating behavior of normal strength concrete (NSC), high strength concrete (HSC), and lightweight concrete (LWC) slabs and assessing the residual flexural strength of two-way slab specimens. Eleven reduced scales reinforced concrete slab specimens divided into t...

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Main Authors: Nura Jasim Muhammed, Bayan S. Al-Numan, Mohamed M. Salman
Format: Article
Language:Arabic
Published: Mustansiriyah University/College of Engineering 2012-06-01
Series:Journal of Engineering and Sustainable Development
Subjects:
Online Access:https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1212
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author Nura Jasim Muhammed
Bayan S. Al-Numan
Mohamed M. Salman
author_facet Nura Jasim Muhammed
Bayan S. Al-Numan
Mohamed M. Salman
author_sort Nura Jasim Muhammed
collection DOAJ
description This work aims at studying the post–heating behavior of normal strength concrete (NSC), high strength concrete (HSC), and lightweight concrete (LWC) slabs and assessing the residual flexural strength of two-way slab specimens. Eleven reduced scales reinforced concrete slab specimens divided into three main groups representing the NSC, HSC, and LWC types of corresponding cube compressive strengths of 50, 94, and 37 N/mm2 respectively, are prepared in the laboratory. Residual flexural strength, load–deflection curves, crack patterns, failure characteristics and details, and effects of temperature level exposure are all recorded, investigated, and discussed. Effects of concrete type when slabs are exposed to different temperature levels are also discussed. Results indicate a reduction of strength with exposure to high temperatures. Residual flexural strength percentages at maximum temperature exposure (700˚C) are 44.5%, 38.7%, and 45.5% for NSC, HSC, and LWC slabs, respectively.    
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spelling doaj.art-b3305b8bb409450c9d1714b86c3fd2032022-12-22T04:38:12ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252012-06-01162Residual Flexural Strength of NSC, HSC and LWC Panels Exposed to High TemperaturesNura Jasim Muhammed0Bayan S. Al-Numan1Mohamed M. Salman2Civil Engineering Department, Al-Mustansiriyah University, Baghdad, IraqCivil Engineering Department, Al-Mustansiriyah University, Baghdad, IraqCivil Engineering Department, Al-Mustansiriyah University, Baghdad, Iraq This work aims at studying the post–heating behavior of normal strength concrete (NSC), high strength concrete (HSC), and lightweight concrete (LWC) slabs and assessing the residual flexural strength of two-way slab specimens. Eleven reduced scales reinforced concrete slab specimens divided into three main groups representing the NSC, HSC, and LWC types of corresponding cube compressive strengths of 50, 94, and 37 N/mm2 respectively, are prepared in the laboratory. Residual flexural strength, load–deflection curves, crack patterns, failure characteristics and details, and effects of temperature level exposure are all recorded, investigated, and discussed. Effects of concrete type when slabs are exposed to different temperature levels are also discussed. Results indicate a reduction of strength with exposure to high temperatures. Residual flexural strength percentages at maximum temperature exposure (700˚C) are 44.5%, 38.7%, and 45.5% for NSC, HSC, and LWC slabs, respectively.    https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1212residual flexural strength normal strength concretehigh temperatures
spellingShingle Nura Jasim Muhammed
Bayan S. Al-Numan
Mohamed M. Salman
Residual Flexural Strength of NSC, HSC and LWC Panels Exposed to High Temperatures
Journal of Engineering and Sustainable Development
residual flexural strength
normal strength concrete
high temperatures
title Residual Flexural Strength of NSC, HSC and LWC Panels Exposed to High Temperatures
title_full Residual Flexural Strength of NSC, HSC and LWC Panels Exposed to High Temperatures
title_fullStr Residual Flexural Strength of NSC, HSC and LWC Panels Exposed to High Temperatures
title_full_unstemmed Residual Flexural Strength of NSC, HSC and LWC Panels Exposed to High Temperatures
title_short Residual Flexural Strength of NSC, HSC and LWC Panels Exposed to High Temperatures
title_sort residual flexural strength of nsc hsc and lwc panels exposed to high temperatures
topic residual flexural strength
normal strength concrete
high temperatures
url https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1212
work_keys_str_mv AT nurajasimmuhammed residualflexuralstrengthofnschscandlwcpanelsexposedtohightemperatures
AT bayansalnuman residualflexuralstrengthofnschscandlwcpanelsexposedtohightemperatures
AT mohamedmsalman residualflexuralstrengthofnschscandlwcpanelsexposedtohightemperatures