Diagnosis of concrete structures distress due to alkali-aggregate reaction

• Autorzy: Owsiak Z. , Zapała-Sławeta J. , Czapik P.

Identyfikatory

DOI

10.1515/bpasts-2015-0003

• Języki publikacji: EN

Abstrakty

EN

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-potassiumcalcium silicate gel can be considered the primary symptom suggestive of an alkali-silica reaction attack. Other damage-causing mechanisms can occur simultaneously.

Słowa kluczowe

EN

alkali-aggregate reaction; diagnosis; concrete structure

PL

reakcja alkalia-kruszywo; rozpoznanie; struktura betonu

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2015
• Tom: Vol. 63, nr 1
• Strony: 23--29
• Opis fizyczny: Bibliogr. 15, fot., wykr., rys.

Twórcy

autor

Owsiak Z.

• Faculty of Civil Engineering and Architecture, Kielce University of Technology, 7 Tysiąclecia Państwa Polskiego Ave., 25-314 Kielce, Poland

autor

Zapała-Sławeta J.

• Faculty of Civil Engineering and Architecture, Kielce University of Technology, 7 Tysiąclecia Państwa Polskiego Ave., 25-314 Kielce, Poland

autor

Czapik P.

• Faculty of Civil Engineering and Architecture, Kielce University of Technology, 7 Tysiąclecia Państwa Polskiego Ave., 25-314 Kielce, Poland

Bibliografia

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