The Effect of Addition Potassium Permanganate on Bond Strength of Hot-Dip Galvanized Plain Bars with Cement Paste
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F23%3A00369179" target="_blank" >RIV/68407700:21610/23:00369179 - isvavai.cz</a>
Výsledek na webu
<a href="https://doi.org/10.3390/ma16072556" target="_blank" >https://doi.org/10.3390/ma16072556</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ma16072556" target="_blank" >10.3390/ma16072556</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
The Effect of Addition Potassium Permanganate on Bond Strength of Hot-Dip Galvanized Plain Bars with Cement Paste
Popis výsledku v původním jazyce
In this paper, the effect of gradually increasing amounts of KMnO4 (10(-4), 10(-3), 10(-2) mol(L-1)) in cement paste on the bond strength of a plain hot-dip galvanized steel bar was evaluated. The opencircuit potential of HDG samples in cement paste with various additions ofMnO(4) was monitored in order to follow a transfer of zinc from activity to passivity. Furthermore, the influence of the addition of these anions on the physicochemical properties of normal-strength concrete or cement paste was evaluated by means of hydration heat measurements, X-ray diffraction analysis, and compressive strength. The effective concentration of MnO4 anions prevents the corrosion of the coating with hydrogen evolution and ensures that the bond strength is not reduced by their action, which was determined to be 10(-3) mol L-1. Lower additions ofMnO(4) anions (10(-4) mol L-1) are ineffective in this respect. On the other hand, higher additions ofMnO(4) anions (10(-2) mol L-1), although they ensure the corrosion of the coating in fresh concrete without hydrogen evolution, but affect the hydration process of the cement paste that was demonstrated by slight water separation.
Název v anglickém jazyce
The Effect of Addition Potassium Permanganate on Bond Strength of Hot-Dip Galvanized Plain Bars with Cement Paste
Popis výsledku anglicky
In this paper, the effect of gradually increasing amounts of KMnO4 (10(-4), 10(-3), 10(-2) mol(L-1)) in cement paste on the bond strength of a plain hot-dip galvanized steel bar was evaluated. The opencircuit potential of HDG samples in cement paste with various additions ofMnO(4) was monitored in order to follow a transfer of zinc from activity to passivity. Furthermore, the influence of the addition of these anions on the physicochemical properties of normal-strength concrete or cement paste was evaluated by means of hydration heat measurements, X-ray diffraction analysis, and compressive strength. The effective concentration of MnO4 anions prevents the corrosion of the coating with hydrogen evolution and ensures that the bond strength is not reduced by their action, which was determined to be 10(-3) mol L-1. Lower additions ofMnO(4) anions (10(-4) mol L-1) are ineffective in this respect. On the other hand, higher additions ofMnO(4) anions (10(-2) mol L-1), although they ensure the corrosion of the coating in fresh concrete without hydrogen evolution, but affect the hydration process of the cement paste that was demonstrated by slight water separation.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20102 - Construction engineering, Municipal and structural engineering
Návaznosti výsledku
Projekt
<a href="/cs/project/GA20-24234S" target="_blank" >GA20-24234S: Nová generace ekologických protikorozních povlaků konvenční výztuže betonu na bázi funkčních nanodisperzních organosilanů</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2023
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Materials
ISSN
1996-1944
e-ISSN
1996-1944
Svazek periodika
16
Číslo periodika v rámci svazku
7
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
23
Strana od-do
—
Kód UT WoS článku
000969132000001
EID výsledku v databázi Scopus
2-s2.0-85152519438