Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Feldspar and mica. Key minerals for fine aggregate quality
Abstract Research on the aggregate-concrete interaction has proved feldspar and mica to be key minerals for concrete quality. Feldspars are predominant minerals in most Norwegian aggregates. A relation has been found between the strength of cement mortars and the type and condition of the feldspars present. Especially, the degree of feldspar alteration (saussurite, sericite) appears to be a primary factor for mortar strength. Concerning mica, a dependence on the weathering conditions has been demonstrated, naturally occurring mica proving less harmful to concrete properties than mica in crushed aggregates. A geochemical interpretation of this includes changes in cation exchange capacity resulting from alteration and weathering.
Feldspar and mica. Key minerals for fine aggregate quality
Abstract Research on the aggregate-concrete interaction has proved feldspar and mica to be key minerals for concrete quality. Feldspars are predominant minerals in most Norwegian aggregates. A relation has been found between the strength of cement mortars and the type and condition of the feldspars present. Especially, the degree of feldspar alteration (saussurite, sericite) appears to be a primary factor for mortar strength. Concerning mica, a dependence on the weathering conditions has been demonstrated, naturally occurring mica proving less harmful to concrete properties than mica in crushed aggregates. A geochemical interpretation of this includes changes in cation exchange capacity resulting from alteration and weathering.
Feldspar and mica. Key minerals for fine aggregate quality
Willy, Danielsen Svein (Autor:in) / Rueslåtten, Håkon G. (Autor:in)
1980
Aufsatz (Zeitschrift)
Englisch
Feldspar and mica. Key minerals for fine aggregate quality
| Online Contents | 1984
Feldspar and mica. Key minerals for fine aggregate quality
| Online Contents | 1980
Feldspar and mica. Key minerals for fine aggregate quality
| Online Contents | 1984
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