Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Franciscan chert in California concrete aggregates
Franciscan chert is potentially chemically reactive with alkalies commonly found in portland cement; tests made with crushed Franciscan chert and high alkali cement showed harmful expansions due to reactivity, when proportion of chert exceeded 10% in sand sizes; aggregates containing more than 20% Franciscan chert in any gravel size are reactive too; chert content is not harmful if alkali content of cement is controlled.
Franciscan chert in California concrete aggregates
Franciscan chert is potentially chemically reactive with alkalies commonly found in portland cement; tests made with crushed Franciscan chert and high alkali cement showed harmful expansions due to reactivity, when proportion of chert exceeded 10% in sand sizes; aggregates containing more than 20% Franciscan chert in any gravel size are reactive too; chert content is not harmful if alkali content of cement is controlled.
Franciscan chert in California concrete aggregates
California. Dept Natural Resources -- Div Mines -- Special Report
Goldman, H.B. (Autor:in) / Klein, I.E. (Autor:in)
1959
28 pages
Report
Englisch
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