Notice: Undefined index: linkPowrot in C:\wwwroot\wwwroot\publikacje\publikacje.php on line 1275
[13160] Artykuł: Diagnosis of concrete structures distress due to alkali-aggregate reactionCzasopismo: Bulletin of the Polish Academy of Sciences: Technical Sciences Tom: 63, Zeszyt: 1, Strony: 23-29ISSN: 0239-7528 Wydawca: POLSKA AKAD NAUK, POLISH ACAD SCI, DIV IV TECHNICAL SCIENCES PAS, PL DEFILAD 1, WARSZAWA, 00-901, POLAND Opublikowano: Marzec 2015 Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Publikacja w czasopismach wymienionych w wykazie ministra MNiSzW (część A) Punkty MNiSW: 20 Klasyfikacja Web of Science: Article ![]() ![]() ![]() Keywords: alkali-aggregate-reaction  diagnosis  concrete structure  |
Damage and defects observed in concrete elements, such as a network of microcracks, popouts and eflorrescence can be caused by a variety of deleterious processes. The causes can include mechanical (overloading), physical (freeze-thaw cycle) or chemical exposure (sulphate corrosion, alkali-aggregate reaction). This paper analyses distress due to alkali-silica reaction, detected in selected concrete structures. The analysed concrete elements exhibited cracking, exudations and surface popouts. Identification of the presence of hydrated sodium-potassium-calcium silicate gel can be considered the primary symptom suggestive of an alkali-silica reaction attack. Other damage-causing mechanisms can occur simultaneously.