Changes of bond strength properties of hot-dip galvanized plain bars with cementpaste after 1 year of curing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F19%3A00335438" target="_blank" >RIV/68407700:21610/19:00335438 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.conbuildmat.2019.07.147" target="_blank" >https://doi.org/10.1016/j.conbuildmat.2019.07.147</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.conbuildmat.2019.07.147" target="_blank" >10.1016/j.conbuildmat.2019.07.147</a>
Alternative languages
Result language
angličtina
Original language name
Changes of bond strength properties of hot-dip galvanized plain bars with cementpaste after 1 year of curing
Original language description
This paper studies the effect of the corrosion of hot-dip galvanized steel on the porosity development of cement paste at the interfacial transition zone (ITZ) between the two materials. The corrosion of hot-dip galvanized steel by hydrogen evolution was studied during the curing of cement paste samples stored above the water level (AW = 95% RH) and below the water level (BW). The changes in the corrosion process were recorded via the time – open circuit potential evolution (Ecorr/FeCr18Ni9) of stainless steel plate (recounted to Ecorr/SCE) in cement paste bodies. Total monitoring time for the development of both parameters were 6 days, 4 months and 1 year. Further, the bond strength between plain hot-dip galvanized steel and cement by modified pull-out test was verified. Total time of curing was in this case 6 days, 4 months and 1 year. The corrosion reaction between hot-dip galvanized steel and fresh cement produces hydrogen, which significantly increases the capillary porosity of the cement paste at the interfacial transition zone (ITZ). The resulting capillary pores are not effectively filled by the zinc corrosion products and the porous structure is maintained even after one year of curing. Porosity increase of cement consequently results in reduction of bond strength between plain hot-dip galvanized steel and concrete which remains low even for samples cured for very long exposure time.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
<a href="/en/project/GA17-22796S" target="_blank" >GA17-22796S: Experimental and numerical analysis of bond behaviour between steel reinforcement and Ultra High Performance Concrete (UHPC) at elevated temperatures</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Construction and Building Materials
ISSN
0950-0618
e-ISSN
1879-0526
Volume of the periodical
226
Issue of the periodical within the volume
listopad
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
920-931
UT code for WoS article
000493862600081
EID of the result in the Scopus database
2-s2.0-85071837300