Correlation of Different Sandstone Aggregates From the Point of Alkali-Silica Reactivity in Concrete


TUĞRUL A. , ÜNDÜL Ö. , YILMAZ M.

11th IAEG Congress, Auckland, New Zealand, 5 - 10 September 2010, pp.4553-4561

  • Publication Type: Conference Paper / Full Text
  • City: Auckland
  • Country: New Zealand
  • Page Numbers: pp.4553-4561

Abstract

Sandstone aggregates that are being used in concrete may cause to alkali-silica reaction due to their mineralogical, petrographical and chemical composition. The purpose of this study is to compare the alkali-silica reactivities of different sandstones. The samples were collected from four sandstone quarries in the surroundings of İstanbul.  There are Ordovician, Carboniferous, Permo-Triassic, and Triassic sandstones in the quarries. Sandstone samples were classified as quartzites, arkose, subarkose, litharenite and feldspathic litharenite by the petrographical and mineralogical studies. The expansions due to alkali-silica reaction were determined by accelerated mortar bar tests. According to the results obtained; Triassic feldspathic litharenite shows reaction more than the acceptable limits.