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@article{1417225, author = {Frybort, A. and Všianský, Dalibor and Stulirova, J. and Stryk, J. and Gregerová, Miroslava}, article_location = {New York}, article_number = {March}, doi = {http://dx.doi.org/10.1016/j.matchar.2018.01.012}, keywords = {Alkali aggregate reactions; Concrete; Alkali-silicate gel; Calcium silicate hydrates; Chemical composition; Petrography}, language = {eng}, issn = {1044-5803}, journal = {Materials Characterization}, title = {Variations in the composition and relations between alkali-silica gels and calcium silicate hydrates in highway concrete}, url = {https://www.sciencedirect.com/science/article/pii/S1044580317317710}, volume = {137}, year = {2018} }
TY - JOUR ID - 1417225 AU - Frybort, A. - Všianský, Dalibor - Stulirova, J. - Stryk, J. - Gregerová, Miroslava PY - 2018 TI - Variations in the composition and relations between alkali-silica gels and calcium silicate hydrates in highway concrete JF - Materials Characterization VL - 137 IS - March SP - 91-108 EP - 91-108 PB - Elsevier SN - 10445803 KW - Alkali aggregate reactions KW - Concrete KW - Alkali-silicate gel KW - Calcium silicate hydrates KW - Chemical composition KW - Petrography UR - https://www.sciencedirect.com/science/article/pii/S1044580317317710 L2 - https://www.sciencedirect.com/science/article/pii/S1044580317317710 N2 - Alkali-aggregate reactions (AAR) are a form of severe concrete deterioration that can be found anywhere in the world. The rock type of aggregate is the crucial factor for AAR occurrence as well as for the chemical and morphological nature of their deleterious products alkali-silica gels (ASG). The paper focuses on highway cement concrete pavement with aggregate composed of metamorphosed volcano-sedimentary complex rocks, such as proterozoic chert, black shale, spilite, and green schist, and alluvial sandy gravels. These petrographic types of aggregate were found to be potentially hazardous. The microchemical composition of ASG was analysed and compared to calcium silicate hydrates present in the vicinity of one another. The qualitative elemental composition of both is the same. Gradual variations of ASG within a single position and among different positions in cement concrete pavement slabs were monitored and compared. ER -
FRYBORT, A., Dalibor VŠIANSKÝ, J. STULIROVA, J. STRYK a Miroslava GREGEROVÁ. Variations in the composition and relations between alkali-silica gels and calcium silicate hydrates in highway concrete. \textit{Materials Characterization}. New York: Elsevier, roč.~137, March, s.~91-108. ISSN~1044-5803. doi:10.1016/j.matchar.2018.01.012. 2018.
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