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Crushed rock as sand in concrete: The Swedish experience
Swedish Cement and Concrete Research Institute.
2008 (English)In: 16th Annual ICAR Symposium, 2008Conference paper (Other academic)
Abstract [en]

In Sweden, concrete has traditionally been manufactured with glaciofluvial eskers as fineaggregate. Since this type of aggregate is unevenly distributed with scarcity in some regions, theongoing trend is to replace it with fine aggregate from crushed bedrock. This type of aggregatediffers from glaciofluvial aggregates in physical and mineral properties, which have a negativelyimpact on the workability and water demand of concrete.In order to increase the knowledge of the influence of the aggregate properties on therheology/workability of concrete and to enhance the transition from natural to crushed aggregatethe Swedish government has financed national research programs. The research programs covermany aspects of the production process of crushed rock from extraction to finished products andnew applications.This paper presents some results from the part of the research programs which deals withaggregate for concrete.

Place, publisher, year, edition, pages
Keyword [en]
Aggregates, fines, shape, specific surface area, sand equivalent test, methylene blue test, washing, mortar, rheology
National Category
Materials Engineering
URN: urn:nbn:se:kth:diva-80379OAI: diva2:496253
16th Annual ICAR Symposium. Austin, USA. May 12 - 14, 2008
QC 20120514Available from: 2012-02-09 Created: 2012-02-09 Last updated: 2012-05-14Bibliographically approved

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Lagerblad, Björn
Materials Engineering

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