Chloride and combined chemical attack of saline solutions on modified oil well cement pastes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F26%3A0200506" target="_blank" >RIV/00216305:26310/26:0200506 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s10973-025-14483-3" target="_blank" >https://link.springer.com/article/10.1007/s10973-025-14483-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10973-025-14483-3" target="_blank" >10.1007/s10973-025-14483-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Chloride and combined chemical attack of saline solutions on modified oil well cement pastes

Popis výsledku v původním jazyce

The effect of complex geothermal water composition in comparison with that of a single NaCl solution was studied on cement pastes prepared by partial substitution of cement with silica fume and metakaolin in different proportions. After 90 days of hydration in solutions or water, TGA, XRD, FTIR, ion chromatography, SEM, volume change, and compressive strength (CS) measurements were used to evaluate the impact of solutions on the systems. Higher Al3+ content in blended samples resulted in a greater ability to bind chlorides in Cl-AFm. A lower amount of free Cl- restrained delayed ettringite formation. Less significant volume changes together with the formation of C-(A-)S-H phases promoted by both solutions led to lower porosities and higher CSs than those of referential paste. NaCl solution showed a bigger negative influence than the geothermal one.

Název v anglickém jazyce

Chloride and combined chemical attack of saline solutions on modified oil well cement pastes

Popis výsledku anglicky

The effect of complex geothermal water composition in comparison with that of a single NaCl solution was studied on cement pastes prepared by partial substitution of cement with silica fume and metakaolin in different proportions. After 90 days of hydration in solutions or water, TGA, XRD, FTIR, ion chromatography, SEM, volume change, and compressive strength (CS) measurements were used to evaluate the impact of solutions on the systems. Higher Al3+ content in blended samples resulted in a greater ability to bind chlorides in Cl-AFm. A lower amount of free Cl- restrained delayed ettringite formation. Less significant volume changes together with the formation of C-(A-)S-H phases promoted by both solutions led to lower porosities and higher CSs than those of referential paste. NaCl solution showed a bigger negative influence than the geothermal one.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GA24-12423S" target="_blank" >GA24-12423S: Nový přístup vývoje alternativních pojiv na bázi karbonatačního vytvrzování</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Thermal Analysis and Calorimetry

ISSN

1388-6150

e-ISSN

1588-2926

Svazek periodika

150

Číslo periodika v rámci svazku

14

Stát vydavatele periodika

HU - Maďarsko

Počet stran výsledku

18

Strana od-do

10821-10838

Kód UT WoS článku

001519996800001

EID výsledku v databázi Scopus

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