Zobrazeno 1 - 10
of 572
pro vyhledávání: '"Delayed ettringite formation"'
Akademický článek
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Akademický článek
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Publikováno v:
Case Studies in Construction Materials, Vol 20, Iss , Pp e03100- (2024)
This study explores the impact of internal pre-damage from early drying shrinkage on the delayed ettringite formation (DEF) expansion behavior of cement-based materials subjected to high-temperature processes. Specimens of cement paste and mortar wit
Externí odkaz:
https://doaj.org/article/c5872fab20d0442f9ae0d8e43e2cbd00
Publikováno v:
Cement, Vol 16, Iss , Pp 100104- (2024)
Ettringite formation is an expansive reaction that causes cracking in the hydrated cementitious materials. This research has investigated the mechanisms of ettringite formation by examining the chemical and physical structure of the reactants and pro
Externí odkaz:
https://doaj.org/article/2d423a8b93164c35a72c66d0c1172f76
Publikováno v:
Construction Materials, Vol 3, Iss 4, Pp 529-542 (2023)
Delayed ettringite formation (DEF) is a recognised durability issue in concretes where the temperature during curing has been elevated. To address the potential risk of DEF, Australian specifications for heat and steam cured concretes, such as TfNSW
Externí odkaz:
https://doaj.org/article/f16a28fec5b04c92af830ee870eb42d5
Publikováno v:
Construction Materials, Vol 3, Iss 4, Pp 405-413 (2023)
Relative humidity is a key parameter for the development of delayed ettringite formation (DEF). Here, new results of very-long-term experiments (10 years) are presented. It is observed that for a relative humidity of 96%, swelling could occur after s
Externí odkaz:
https://doaj.org/article/286324ee54a146339a89a0063754baed
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
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Publikováno v:
Case Studies in Construction Materials, Vol 19, Iss , Pp e02289- (2023)
High-performance concrete is often heat-treated to increase early strength. Standardized temperature conditions for at least 24 h and sulphate-resistant cement thereby preventing delayed ettringite formation (DEF). In contrast, this paper investigate
Externí odkaz:
https://doaj.org/article/dbb946519522418db7621f107ad5ad22
Publikováno v:
International Journal of Concrete Structures and Materials, Vol 16, Iss 1, Pp 1-15 (2022)
Abstract This study investigated the deteriorations of precast prestressed concrete (PSC) ties that were used for 15 years in high-speed railways in Korea and its damaging mechanism. The collected PSC ties with longitudinal cracks on sides and map cr
Externí odkaz:
https://doaj.org/article/508f83c8e2894c4688e821d3ca2d5dc3
Publikováno v:
Cement, Vol 12, Iss , Pp 100060- (2023)
The aim of this research was to investigate the relation between leachate data and expansion due to delayed ettringite formation (DEF). These correlations have the potential for identifying the probability of delayed ettringite formation in a shorter
Externí odkaz:
https://doaj.org/article/3050639384c9453bbed0df9a20b40301