A new perspective on nature of fire-induced spalling in concrete

Spalling of concrete is a great potential threat to fire resistance of concrete structures. Understanding the underlying mechanism is important to predict and mitigate this unfavorable phenomenon. Currently, there are two main mechanisms to explain the fire-induced concrete spalling: viz. spalling d...

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Main Authors: Liu, Jin-Cheng, Tan, Kang Hai, Yao, Yao
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2020
Subjects:
Online Access:https://hdl.handle.net/10356/139483
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1394832020-05-20T01:09:50Z A new perspective on nature of fire-induced spalling in concrete Liu, Jin-Cheng Tan, Kang Hai Yao, Yao School of Civil and Environmental Engineering Engineering::Civil engineering Fire-induced Spalling Concrete Spalling of concrete is a great potential threat to fire resistance of concrete structures. Understanding the underlying mechanism is important to predict and mitigate this unfavorable phenomenon. Currently, there are two main mechanisms to explain the fire-induced concrete spalling: viz. spalling due to (a) pore pressure buildup or (b) thermal stress. The relative importance of these two mechanisms has been a subject of intense debate in the research community over the past few decades. This paper presents a critical review of conflicting and concordant points on concrete spalling at high temperature and proposes a unified and coherent fire-induced concrete spalling theory. Therein, the authors propose three types of thermal spalling depending on the governing mechanisms: thermo-hygral spalling, thermo-mechanical spalling and thermo-chemical spalling. The criteria to forecast each type of spalling are established and the spalling temperature range for each of them is analysed. The spalling pattern, influencing factors and preventive measures for each type of spalling are also discussed in this paper. 2020-05-20T01:09:49Z 2020-05-20T01:09:49Z 2018 Journal Article Liu, J.-C., Tan, K. H., & Yao, Y. (2018). A new perspective on nature of fire-induced spalling in concrete. Construction and Building Materials, 184, 581-590. doi:10.1016/j.conbuildmat.2018.06.204 0950-0618 https://hdl.handle.net/10356/139483 10.1016/j.conbuildmat.2018.06.204 2-s2.0-85049567329 184 581 590 en Construction and Building Materials © 2018 Elsevier Ltd. All rights reserved. This paper was published in Construction and Building Materials and is made available with permission of Elsevier Ltd.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Engineering::Civil engineering
Fire-induced Spalling
Concrete
spellingShingle Engineering::Civil engineering
Fire-induced Spalling
Concrete
Liu, Jin-Cheng
Tan, Kang Hai
Yao, Yao
A new perspective on nature of fire-induced spalling in concrete
description Spalling of concrete is a great potential threat to fire resistance of concrete structures. Understanding the underlying mechanism is important to predict and mitigate this unfavorable phenomenon. Currently, there are two main mechanisms to explain the fire-induced concrete spalling: viz. spalling due to (a) pore pressure buildup or (b) thermal stress. The relative importance of these two mechanisms has been a subject of intense debate in the research community over the past few decades. This paper presents a critical review of conflicting and concordant points on concrete spalling at high temperature and proposes a unified and coherent fire-induced concrete spalling theory. Therein, the authors propose three types of thermal spalling depending on the governing mechanisms: thermo-hygral spalling, thermo-mechanical spalling and thermo-chemical spalling. The criteria to forecast each type of spalling are established and the spalling temperature range for each of them is analysed. The spalling pattern, influencing factors and preventive measures for each type of spalling are also discussed in this paper.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Liu, Jin-Cheng
Tan, Kang Hai
Yao, Yao
format Article
author Liu, Jin-Cheng
Tan, Kang Hai
Yao, Yao
author_sort Liu, Jin-Cheng
title A new perspective on nature of fire-induced spalling in concrete
title_short A new perspective on nature of fire-induced spalling in concrete
title_full A new perspective on nature of fire-induced spalling in concrete
title_fullStr A new perspective on nature of fire-induced spalling in concrete
title_full_unstemmed A new perspective on nature of fire-induced spalling in concrete
title_sort new perspective on nature of fire-induced spalling in concrete
publishDate 2020
url https://hdl.handle.net/10356/139483
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