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Geochemical properties of aggregates—Concrete quality

  • Rueslåtten Hakon G 
  • Holm Jan Viggo 
International Symposium on Aggregates Themes 5. Aggregates for Concrete
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Abstract

The mineralogical composition of Norwegian sand deposits influences the geochemical conditions and the rate of weathering.

Chemical treatments of sand used for mortar aggregate testing (NaOH and citrate-dithionite-bicarbonate) extract various amounts of elements in the different soil profiles. A positive correlation is found within each quarry between relative mortar strength and the amount of K, Mg and Ca extracted from the sand samples. This correlation is even better when the amount of extracted K, Mg and Ca is adjusted for the water requirement index.

Keywords

Pyrite Groundwater Level Cation Exchange Capacity Mineralogical Composition Sand Sample 

Proprietes geochimiques des granulats—Qualite des betons

Résumé

La composition minéralogique des gisements de sables norvégiens influence les conditions géochimiques et les vitesses de l'altération.

Des traitements chimiques (NaOH et citrate-dithionate-bicarbonate de Na) des sables à béton montrent une extraction différente des éléments suivant la position des couches. Une relation existe pour chaque gisement entre la résistance du mortier et les quantités de K, Mg et Ca extraites des sables.

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References

  1. [1]
    DANIELSEN S.W. & RUESLÅTTEN H.G., (1984): “Feldspar and Mica-Key minerals for fine aggregate quality.” Int. Symp. on Aggregate, Nice, France.CrossRefGoogle Scholar
  2. [2]
    DIXON J.B. & WEED S.B., (1977): “Minerals in Soil Environments.”Soil Sci. Soc. of Am., 948 p.Google Scholar
  3. [3]
    MEHRA O.P. & JACKSON M.L., (1960): “Iron oxide removal from soils and clays by a dithionite-citrate system buffered with sodium bicarbonate.”Clay and Clay Mineral. 7: 317–327.CrossRefGoogle Scholar

Copyright information

© International Association of Engineering Geology 1984

Authors and Affiliations

  • Rueslåtten Hakon G 
    • 1
  • Holm Jan Viggo 
    • 2
  1. 1.Department of GeologyUniversity of Trondheim, The Norwegian Institute of TechnologyNorway
  2. 2.NOTEBYNorsk Teknisk Bygekontroll A/S (Partners of Norconsult A/S)Norway

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