Open AccessAlkali-silica Reaction in Finnish Concrete Structures
Author(s) -
Jukka Lahdensivu,
Pekka Kekäläinen,
Alina Lahdensivu
Publication year - 2018
Publication title -
nordic concrete research/nordic concrete research
Language(s) - English
Resource type - Journals
eISSN - 2545-2819
pISSN - 0800-6377
DOI - 10.2478/ncr-2018-0013
Subject(s) - alkali–silica reaction , scope (computer science) , igneous rock , natural (archaeology) , alkali metal , geology , mineralogy , materials science , geochemistry , forensic engineering , composite material , engineering , chemistry , computer science , paleontology , organic chemistry , mortar , programming language
Even though natural phenomena do not abide to borders, Finland has traditionally been considered an alkali-silica reaction (ASR) free country. This is due to exceptional quality of the mostly course crystalline igneous rocks. However, during the last few years dozens of cases of ASR have been reported. The scope of this study was to study the occurrence of ASR, and to find out the initiation time of the reaction in resent investigations of Finnish concrete structures. ASR is found occurring all over Finland. The reacting aggregates consist of rock types, which are considered relatively stable or low reacting in literature.