Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effects of Supplementary Cementitious Materials on Alkali-Silica Reaction. Technical Brief
The Kansas Department of Transportation (KDOT) has controlled alkali-silica reaction (ASR) for more than 70 years through the use of selected aggregates. Sand and gravel sources had to be tested using Kansas Test Method KTMR-23 (1999), Wetting and Drying Test of Sand and Sand-Gravel Aggregate for Concrete. Those aggregate sources that did not pass the Wetting and Drying Test had to be used with a “sweetener.” The sweetener had to make up a minimum of 30% (by weight) of the aggregate in the concrete. The most common sweeteners used have been limestone, calcite cemented sandstone, and a coarse gravel that passed the Wetting and Drying Test. Granite from Arkansas has recently been added as a sweetener in the Kansas City market.
Effects of Supplementary Cementitious Materials on Alkali-Silica Reaction. Technical Brief
The Kansas Department of Transportation (KDOT) has controlled alkali-silica reaction (ASR) for more than 70 years through the use of selected aggregates. Sand and gravel sources had to be tested using Kansas Test Method KTMR-23 (1999), Wetting and Drying Test of Sand and Sand-Gravel Aggregate for Concrete. Those aggregate sources that did not pass the Wetting and Drying Test had to be used with a “sweetener.” The sweetener had to make up a minimum of 30% (by weight) of the aggregate in the concrete. The most common sweeteners used have been limestone, calcite cemented sandstone, and a coarse gravel that passed the Wetting and Drying Test. Granite from Arkansas has recently been added as a sweetener in the Kansas City market.
Effects of Supplementary Cementitious Materials on Alkali-Silica Reaction. Technical Brief
Rarrells W. H. (Autor:in) / Monney R. A. (Autor:in)
2016
3 pages
Report
Keine Angabe
Englisch
Soil & Rock Mechanics , Soil Sciences , Transportation , Civil, Construction, Structural, & Building Engineering , Materials Sciences , Composite Materials , Miscellaneous Materials , Alkali-Silica reaction , Cementitious materials , Fly ash , Aggregates , Kansas , Gravel aggregates , Concrete , Limestone , Calcite cement nodules , Requirements , Standard special articles (SSAs) , Coal fly ash , Supplementary cementitious materials , Kansas Test Method , Kansas City market , Technical briefing