Critical Fiber Dimesions for Preventing Spalling of Ultra-high Performance Concrete at High Temperature

Dong Zhang; Kang Hai Tan

doi:10.1007/s10694-022-01318-y

Critical Fiber Dimesions for Preventing Spalling of Ultra-high Performance Concrete at High Temperature

Dong Zhang, Kang Hai Tan^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

This paper presents an experimental study that investigates the effect of fiber dimension on preventing spalling of ultra-high-performance concrete (UHPC). UHPCs with different dimensions of polypropylene (PP) fibers were prepared for permeability test at different temperatures and spalling test under ISO834 fire curve. Scanning electron microscope (SEM) observation was also conducted focusing on the fiber of a UHPC sample at the same location after it was subjected to elevated temperatures. The results of permeability tests and spalling tests showed that longer fibers of 12 mm and 18 mm and finer fibers of 28 μm and 33 μm were more beneficial for increasing the permeability of UHPC at high temperature, resulting in higher effectiveness on spalling prevention. Permeability measurements indicated a significant increase occurred at 150°C regardless of fiber dimensions; this increase plays an important role in spalling prevention. SEM results further testify that this increase can be attributed to the formation of microcracks caused by expansion of PP fibers. An aspect ratio of 300 is recommend for spalling prevention of UHPC, when 3 kg/m³ of PP fibers are used.

Original language	English
Pages (from-to)	3043-3058
Number of pages	16
Journal	Fire Technology
Volume	60
Issue number	5
DOIs	https://doi.org/10.1007/s10694-022-01318-y
Publication status	Published - Sept 2024
Externally published	Yes

Bibliographical note

Publisher Copyright:
© The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

ASJC Scopus Subject Areas

General Materials Science
Safety, Risk, Reliability and Quality

Keywords

High temperature
Permeability
Spalling
Ultra-high performance concrete (UHPC)

Access to Document

10.1007/s10694-022-01318-y

Cite this

@article{c22f3abb08ad4c749a2bfe498a5c9c7f,

title = "Critical Fiber Dimesions for Preventing Spalling of Ultra-high Performance Concrete at High Temperature",

abstract = "This paper presents an experimental study that investigates the effect of fiber dimension on preventing spalling of ultra-high-performance concrete (UHPC). UHPCs with different dimensions of polypropylene (PP) fibers were prepared for permeability test at different temperatures and spalling test under ISO834 fire curve. Scanning electron microscope (SEM) observation was also conducted focusing on the fiber of a UHPC sample at the same location after it was subjected to elevated temperatures. The results of permeability tests and spalling tests showed that longer fibers of 12 mm and 18 mm and finer fibers of 28 μm and 33 μm were more beneficial for increasing the permeability of UHPC at high temperature, resulting in higher effectiveness on spalling prevention. Permeability measurements indicated a significant increase occurred at 150°C regardless of fiber dimensions; this increase plays an important role in spalling prevention. SEM results further testify that this increase can be attributed to the formation of microcracks caused by expansion of PP fibers. An aspect ratio of 300 is recommend for spalling prevention of UHPC, when 3 kg/m3 of PP fibers are used.",

keywords = "High temperature, Permeability, Spalling, Ultra-high performance concrete (UHPC)",

author = "Dong Zhang and Tan, {Kang Hai}",

note = "Publisher Copyright: {\textcopyright} The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.",

year = "2024",

month = sep,

doi = "10.1007/s10694-022-01318-y",

language = "English",

volume = "60",

pages = "3043--3058",

journal = "Fire Technology",

issn = "0015-2684",

publisher = "Springer Netherlands",

number = "5",

}

TY - JOUR

T1 - Critical Fiber Dimesions for Preventing Spalling of Ultra-high Performance Concrete at High Temperature

AU - Zhang, Dong

AU - Tan, Kang Hai

N1 - Publisher Copyright: © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2022. Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

PY - 2024/9

Y1 - 2024/9

N2 - This paper presents an experimental study that investigates the effect of fiber dimension on preventing spalling of ultra-high-performance concrete (UHPC). UHPCs with different dimensions of polypropylene (PP) fibers were prepared for permeability test at different temperatures and spalling test under ISO834 fire curve. Scanning electron microscope (SEM) observation was also conducted focusing on the fiber of a UHPC sample at the same location after it was subjected to elevated temperatures. The results of permeability tests and spalling tests showed that longer fibers of 12 mm and 18 mm and finer fibers of 28 μm and 33 μm were more beneficial for increasing the permeability of UHPC at high temperature, resulting in higher effectiveness on spalling prevention. Permeability measurements indicated a significant increase occurred at 150°C regardless of fiber dimensions; this increase plays an important role in spalling prevention. SEM results further testify that this increase can be attributed to the formation of microcracks caused by expansion of PP fibers. An aspect ratio of 300 is recommend for spalling prevention of UHPC, when 3 kg/m3 of PP fibers are used.

AB - This paper presents an experimental study that investigates the effect of fiber dimension on preventing spalling of ultra-high-performance concrete (UHPC). UHPCs with different dimensions of polypropylene (PP) fibers were prepared for permeability test at different temperatures and spalling test under ISO834 fire curve. Scanning electron microscope (SEM) observation was also conducted focusing on the fiber of a UHPC sample at the same location after it was subjected to elevated temperatures. The results of permeability tests and spalling tests showed that longer fibers of 12 mm and 18 mm and finer fibers of 28 μm and 33 μm were more beneficial for increasing the permeability of UHPC at high temperature, resulting in higher effectiveness on spalling prevention. Permeability measurements indicated a significant increase occurred at 150°C regardless of fiber dimensions; this increase plays an important role in spalling prevention. SEM results further testify that this increase can be attributed to the formation of microcracks caused by expansion of PP fibers. An aspect ratio of 300 is recommend for spalling prevention of UHPC, when 3 kg/m3 of PP fibers are used.

KW - High temperature

KW - Permeability

KW - Spalling

KW - Ultra-high performance concrete (UHPC)

UR - http://www.scopus.com/inward/record.url?scp=85138157566&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85138157566&partnerID=8YFLogxK

U2 - 10.1007/s10694-022-01318-y

DO - 10.1007/s10694-022-01318-y

M3 - Article

AN - SCOPUS:85138157566

SN - 0015-2684

VL - 60

SP - 3043

EP - 3058

JO - Fire Technology

JF - Fire Technology

IS - 5

ER -

Critical Fiber Dimesions for Preventing Spalling of Ultra-high Performance Concrete at High Temperature

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

Access to Document

Other files and links

Fingerprint

Cite this