The alkali-silica reaction: mineralogical and geochemical aspects of some Dutch concretes and Norwegian mylonites

Maarten Broekmans has studied the alkali-silica reaction in two Dutch concretes by means of optical microscopy, geochemical analyses on bulk material and after selective digestion in acid, and with element mapping in polished thin sections. He furthermore characterized the nature of the silica/quartz in the Norwegian mylonites studied previously by Wigum in his PhD-thesis (1995), in the Ohio cherts previously studied by Kneller (1967), and some Dutch cherts by assessing their crystallinity indices following the XRD-method of Murata&Norman (1976). The thesis suggests a simple and straight-f... Mehr ...