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Core recovery: a damage diagnosis tool for thermally deteriorated concrete

Core recovery: a damage diagnosis tool for thermally deteriorated concrete This paper aims to study and assess residual strengths of concrete specimen exposed to elevated temperatures by core recovery tests.Design/methodology/approachThe appraisal of concrete structures is typically carried out by means of partially destructive tests such as tests on concrete cores taken from the structure and non-destructive testing.FindingsThis paper presents results associated with determination of residual compressive strengths of plain and reinforced concrete elements exposed to elevated temperatures by core recovery test. Physical observations and results of compressive strengths of cores extracted from plain cement concrete, as well as from reinforced concrete beam elements exposed to elevated temperatures, have been presented.Originality/valueThe empirical relations have been proposed between standard cube and core extracted for compressive strength of concretes exposed to elevated temperatures are useful for damage diagnosis. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Structural Fire Engineering Emerald Publishing

Core recovery: a damage diagnosis tool for thermally deteriorated concrete

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References (22)

Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
2040-2317
DOI
10.1108/jsfe-03-2018-0008
Publisher site
See Article on Publisher Site

Abstract

This paper aims to study and assess residual strengths of concrete specimen exposed to elevated temperatures by core recovery tests.Design/methodology/approachThe appraisal of concrete structures is typically carried out by means of partially destructive tests such as tests on concrete cores taken from the structure and non-destructive testing.FindingsThis paper presents results associated with determination of residual compressive strengths of plain and reinforced concrete elements exposed to elevated temperatures by core recovery test. Physical observations and results of compressive strengths of cores extracted from plain cement concrete, as well as from reinforced concrete beam elements exposed to elevated temperatures, have been presented.Originality/valueThe empirical relations have been proposed between standard cube and core extracted for compressive strength of concretes exposed to elevated temperatures are useful for damage diagnosis.

Journal

Journal of Structural Fire EngineeringEmerald Publishing

Published: May 22, 2019

Keywords: Condition assessment; Core recovery test; Empirical models; Thermally deteriorated concrete

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