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Experimental Investigation of the High Temperatures Effects on Self-Compacting Concrete Properties

Self-compacting concrete (SCC), which appeared in the 1980s in Japan, is a concrete that differs from others by its high fluidity. The constituents of SCC can be quite different from those of ordinary concretes. They can differ both in their proportions and in their choice. Given the method of insta...

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Main Authors: Benjeddou O., Katman H.Y., Jedidi M., Mashaan N.
Other Authors: 15839228500
Format: Article
Published: MDPI 2023
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spelling my.uniten.dspace-268632023-05-29T17:37:20Z Experimental Investigation of the High Temperatures Effects on Self-Compacting Concrete Properties Benjeddou O. Katman H.Y. Jedidi M. Mashaan N. 15839228500 55812804800 56719842300 38561873400 Self-compacting concrete (SCC), which appeared in the 1980s in Japan, is a concrete that differs from others by its high fluidity. The constituents of SCC can be quite different from those of ordinary concretes. They can differ both in their proportions and in their choice. Given the method of installation of SCCs, particular attention is paid to the study of their physical and mechanical characteristics. In this context, experimental tests were conducted to assess the effect of high temperatures on the behavior of SCC. For this purpose, a SCC and ordinary concrete (OC) were tested at temperatures of 20, 150, 300, 450, and 600 �C. Prismatic specimens of dimensions 100 � 100 � 400 mm3, cylindrical specimens of dimensions 160 � 320 mm, and parallelepiped specimens of dimensions 270 � 270 � 40 mm3 were prepared for physical (thermal conductivity) and mechanical (compressive strength, elastic modulus, flexural strength, and ultrasonic pulse velocity) tests. The results showed an increase in the compressive strength for SCC between 150 and 300 �C following an additional hydration of the cementitious matrix. The residual flexural strength of the concretes decreases progressively with the increase in temperature. This reduction is about 90% from 450 �C to 600 �C. The results also showed that the thermal conductivity of concrete decreases as the temperature increases and can reach a value of 1.2 W/mK for the heating temperature of 600 �C. � 2022 by the authors. Licensee MDPI, Basel, Switzerland. Final 2023-05-29T09:37:20Z 2023-05-29T09:37:20Z 2022 Article 10.3390/buildings12060729 2-s2.0-85131294452 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85131294452&doi=10.3390%2fbuildings12060729&partnerID=40&md5=a823724a9673a3cc6446fb96eefad51f https://irepository.uniten.edu.my/handle/123456789/26863 12 6 729 All Open Access, Gold MDPI Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
description Self-compacting concrete (SCC), which appeared in the 1980s in Japan, is a concrete that differs from others by its high fluidity. The constituents of SCC can be quite different from those of ordinary concretes. They can differ both in their proportions and in their choice. Given the method of installation of SCCs, particular attention is paid to the study of their physical and mechanical characteristics. In this context, experimental tests were conducted to assess the effect of high temperatures on the behavior of SCC. For this purpose, a SCC and ordinary concrete (OC) were tested at temperatures of 20, 150, 300, 450, and 600 �C. Prismatic specimens of dimensions 100 � 100 � 400 mm3, cylindrical specimens of dimensions 160 � 320 mm, and parallelepiped specimens of dimensions 270 � 270 � 40 mm3 were prepared for physical (thermal conductivity) and mechanical (compressive strength, elastic modulus, flexural strength, and ultrasonic pulse velocity) tests. The results showed an increase in the compressive strength for SCC between 150 and 300 �C following an additional hydration of the cementitious matrix. The residual flexural strength of the concretes decreases progressively with the increase in temperature. This reduction is about 90% from 450 �C to 600 �C. The results also showed that the thermal conductivity of concrete decreases as the temperature increases and can reach a value of 1.2 W/mK for the heating temperature of 600 �C. � 2022 by the authors. Licensee MDPI, Basel, Switzerland.
author2 15839228500
author_facet 15839228500
Benjeddou O.
Katman H.Y.
Jedidi M.
Mashaan N.
format Article
author Benjeddou O.
Katman H.Y.
Jedidi M.
Mashaan N.
spellingShingle Benjeddou O.
Katman H.Y.
Jedidi M.
Mashaan N.
Experimental Investigation of the High Temperatures Effects on Self-Compacting Concrete Properties
author_sort Benjeddou O.
title Experimental Investigation of the High Temperatures Effects on Self-Compacting Concrete Properties
title_short Experimental Investigation of the High Temperatures Effects on Self-Compacting Concrete Properties
title_full Experimental Investigation of the High Temperatures Effects on Self-Compacting Concrete Properties
title_fullStr Experimental Investigation of the High Temperatures Effects on Self-Compacting Concrete Properties
title_full_unstemmed Experimental Investigation of the High Temperatures Effects on Self-Compacting Concrete Properties
title_sort experimental investigation of the high temperatures effects on self-compacting concrete properties
publisher MDPI
publishDate 2023
_version_ 1806426303488851968
score 13.211869

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