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Title

Limitations of Köch-Steinegger test to evaluate the durability of cement pastes in acid medium

AuthorsMacías, Ángeles; Goñi Elizalde, Sara; Madrid, Julio
KeywordsDurability
Acid attack
Pore solution
Granulated blast furnace slag-cement paste
Issue DateDec-1999
PublisherElsevier BV
CitationCement and Concrete Research 29(12): 2005-2009 (1999)
AbstractThe durability of ordinary Portland cement and ground granulated blast furnace slag pastes in buffered acetic/acetate medium (pH 4.5) was studied by means of the Köch-Steinegger test. Results show that flexural strength measurement is not a good parameter to evaluate the degradation degree of cement paste in acid medium because two effects take place with opposite consequences on flexural strength as a result of acid attack: a densification of the cement paste in the specimen core and a degradation of the outer surface with loss of resistance.
Publisher version (URL)https://doi.org/10.1016/S0008-8846(99)00196-9
URIhttp://hdl.handle.net/10261/216083
DOI10.1016/S0008-8846(99)00196-9
ISSN0008-8846
Appears in Collections:(IETCC) Artículos
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