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Characteristics of the attack of cement paste by MgSO4 and MgCl2 from the pore structure measurements

✍ Scribed by M. Moukwa

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 644 KB
Volume: 20
Category: Article
ISSN: 0008-8846
DOI: 10.1016/0008-8846(90)90125-h

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✦ Synopsis

This paper deals with the attack of cement paste by MgSO 4 and MgCl 2 solutions.

The analysis of the pore structure using mercury porosimetry reveals distinct characteristics of both types of corrosion.

MgSO 4 is associated with the densification of the pore structure, whereas MgCl 2 corrosion is associated with the opening of the pore structure.

Mineral additives seem to protect somewhat 14d-cured cement paste against the MgSO 4 attack.

A longer initial cure is necessary as far as MgCl 2 attack is concerned.

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