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Title:

The effect of artificial leaching with HCl on chloride binding in ordinary Portland cement paste

Document type:
Zeitschriftenaufsatz
Author(s):
Hemstad, Petter; Machner, Alisa; De Weerdt, Klaartje
Abstract:
This study investigates how the pH in the pore solution influences the chloride binding in Portland cement pastes. Cement paste samples were exposed to NaCl, CaCl2 and HCl solutions. The mechanisms of changes in chloride binding were investigated using a wide variety of techniques both for the liquid and solid phase. Lowering the pH from 13 to 12 with CaCl2 or HCl greatly increased chloride binding compared to NaCl, which was associated with increased amounts of chlorides in the AFm-phases. Lowe...     »
Journal title:
Cement and Concrete Research
Year:
2020
Journal volume:
130
Pages contribution:
105976
Covered by:
Scopus
Language:
en
Fulltext / DOI:
doi:10.1016/j.cemconres.2020.105976
Publisher:
Elsevier BV
E-ISSN:
0008-8846
Date of publication:
01.04.2020
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