Kruszywo jako przyczyna uszkodzenia betonu

• Autorzy: Piasta W. , Owsiak Z.

Warianty tytułu

EN

Aggregate as a reason of concrete damages

• Języki publikacji: PL

Abstrakty

EN

There have been examined some damages of two years old concrete when a lot of its pieces were detached from pavement. The detachment of concrete pieces as a result of aggregate swelling has been stated too when the cores drilled out from the pavement were immersed in water. Some concrete pieces detached from a ceiling slab have been also examined. There have been carried out DTA, DTG, XRD analyses of aggregate grains collected from the pavement and ceiling concretes. The reason of concrete damages was swelling of loamy minerals – illite and vermiculite contained in aggregate grains and the alkali aggregate reaction could have taken place in the ceiling slab.

Słowa kluczowe

PL

beton; uszkodzenie; kruszywo reaktywne; reakcja krzemoalkaliczna

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Materiały Budowlane
• Rocznik: 2012
• Tom: nr 5
• Strony: 60--61
• Opis fizyczny: 64, Bibliogr. 4 poz., il.

Twórcy

autor

Piasta W.

autor

Owsiak Z.

• Politechnika Świętokrzyska

Bibliografia

• [1] Mather B., Discussion on use of chert in concrete structure in Jordan by S. S. Qaqish and N. Marar ACI Materials Journal, 87, Nr 1, s. 80 (1990).
• [2] Neville A., Właściwości betonu, Wyd. Polski Cement, Krakow, 2000.
• [3] Silveria A. et al., Investigation of AAR in Brazilian carbonate rocks, Proc. of 13th ICAAR ed. Broekmans & Wigun, Trondheim, 2008, p. 118-129.
• [4] A. Lopez et al., Influence of dolomite stability on AAR, Proc. of 13th ICAAR ed. Broekmans & Wigun, Trondheim, 2008, p. 254-263.