The steel-concrete interface
File(s)10.1617%2Fs11527-017-1010-1.pdf (2.34 MB)
Published version
Author(s)
Type
Journal Article
Abstract
Although the steel
-
concrete
interface (SCI) is widely recognized to influence the durability
of reinforced concrete, a systematic overview and detailed documentation of the various
aspects of the SCI are lacking.
In this paper, we compiled
a comprehensive list of possible
local chara
cteristics at the SCI and reviewed available information regarding their properties
as well as their occurrence in engineering structures
and in the laboratory
. Given the
complexity of the SCI, we suggested a systematic approach to describe it in terms of
local
characteristics
and
their physical and chemical properties. It was found that the SCI exhibits
significant
spatial inhomogeneity along and around as well as perpendicular to the
reinforcing steel
. The SCI can differ strongly between different enginee
ring structures and
also between different members within a structure; particular differences are expected
between structures built before and after the 1970/80s. A single SCI representing all on
-
site
conditions does not exist. Additionally, SCIs in common
laboratory
-
made specimens exhibit
significant differences compared to engineering structures. Thus, results from laboratory
studies and from practical experience should be applied to engineering structures with
caution. Finally, recommendations for furthe
r research are made.
-
concrete
interface (SCI) is widely recognized to influence the durability
of reinforced concrete, a systematic overview and detailed documentation of the various
aspects of the SCI are lacking.
In this paper, we compiled
a comprehensive list of possible
local chara
cteristics at the SCI and reviewed available information regarding their properties
as well as their occurrence in engineering structures
and in the laboratory
. Given the
complexity of the SCI, we suggested a systematic approach to describe it in terms of
local
characteristics
and
their physical and chemical properties. It was found that the SCI exhibits
significant
spatial inhomogeneity along and around as well as perpendicular to the
reinforcing steel
. The SCI can differ strongly between different enginee
ring structures and
also between different members within a structure; particular differences are expected
between structures built before and after the 1970/80s. A single SCI representing all on
-
site
conditions does not exist. Additionally, SCIs in common
laboratory
-
made specimens exhibit
significant differences compared to engineering structures. Thus, results from laboratory
studies and from practical experience should be applied to engineering structures with
caution. Finally, recommendations for furthe
r research are made.
Date Issued
2017-02-27
Date Acceptance
2017-01-31
Citation
Materials and Structures, 2017, 50
ISSN
1871-6873
Publisher
Springer Verlag (Germany)
Journal / Book Title
Materials and Structures
Volume
50
Copyright Statement
© The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Subjects
Building & Construction
0905 Civil Engineering
Publication Status
Published
Article Number
143