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Publikācija: Alkali-Aggregate Reaction in Alkali-Activated Cement Concretes

Publication Type Full-text conference paper published in conference proceedings indexed in SCOPUS or WOS database
Funding for basic activity EU Structural Funds
Defending: ,
Publication language English (en)
Title in original language Alkali-Aggregate Reaction in Alkali-Activated Cement Concretes
Field of research 2. Engineering and technology
Sub-field of research 2.1. Construction and transportation engineering
Research platform None
Authors P. Krivenko
O. Gelevera
O. Kovalchuk
Ģirts Būmanis
Aleksandrs Korjakins
Keywords alkali-activated, concrete
Abstract The paper discloses the results of a study on structure formation processes in the interfacial transition zone "cement stone − aggregate" of the alkali-activated cement concretes. The results indicate the importance of the content of Al2O3 in the cement and aggregate. Together with components that are able to interact actively with alkalis in the presence of reactive SiO2, the processes taking place during the alkali-aggregate reaction can have weather destructive or constructive effect. The constructive effect is caused by incorporating the corrosion products into alkaline aluminosilicate compounds, thus retarding the internal corrosion of the concrete and providing the higher durability even in case of alkali-activated cements and alkali-susceptible aggregates with relatively high alkali content.
DOI: 10.1088/1757-899X/660/1/012002
Hyperlink: https://iopscience.iop.org/article/10.1088/1757-899X/660/1/012002/pdf 
Reference Krivenko, P., Gelevera, O., Kovalchuk, O., Būmanis, Ģ., Korjakins, A. Alkali-Aggregate Reaction in Alkali-Activated Cement Concretes. In: IOP Conference Series: Materials Science and Engineering. Vol.660: 4th International Conference on Innovative Materials, Structures and Technologies (IMST 2019), Latvia, Riga, 25-27 September, 2019. Bristol: IOP Publishing, 2019, Article number 012002. ISSN 1757-8981. e-ISSN 1757-899X. Available from: doi:10.1088/1757-899X/660/1/012002
Additional information Citation count:
ID 30225