- Tytuł:
- Assessment gravel aggregate reactivity with alkalis in relation to methods of test
- Autorzy:
-
Owsiak, Z.
Czapik, P.
Zapała-Sławeta, J. - Powiązania:
- https://bibliotekanauki.pl/articles/230521.pdf
- Data publikacji:
- 2014
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
reakcja alkalia-krzemionka
kruszywo
petrografia
zaprawa
alkali-silica reaction
aggregate
petrography
mortar - Opis:
- Alkali-aggregate reactivity (AAR) is one of the major causes of damage in concrete. Potential susceptibility of aggregates to this reaction can be determined using several methods. This study compares gravel alkali reactivity results obtained from different tests conducted on coarse aggregates with complex petrography. The potential for the reactivity in the aggregates was revealed in the chemical test using treatment with sodium hydroxide. Optical microscopy, scanning electron microscopy and X-ray diffraction were used to identify the reactive constituents. The expansion measured in the mortar bars test confirmed that the aggregate was potentially capable of alkali silica reactivity with consequent deleterious effect on concrete.
- Źródło:
-
Archives of Civil Engineering; 2014, 60, 4; 441-451
1230-2945 - Pojawia się w:
- Archives of Civil Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł