Cristin-resultat-ID: 1254599
Sist endret: 21. juli 2015, 09:12
Resultat
Poster
2015

Fines from aggregate quarrying and its influence on frost protection in roads

Bidragsytere:
  • Elena Kuznetsova og
  • Svein Willy Danielsen

Presentasjon

Navn på arrangementet: Euroclay 2015
Sted: Edinburgh
Dato fra: 5. juli 2015
Dato til: 10. juli 2015

Om resultatet

Poster
Publiseringsår: 2015

Beskrivelse Beskrivelse

Tittel

Fines from aggregate quarrying and its influence on frost protection in roads

Sammendrag

With natural (fluvial, glaciofluvial) sand/gravel resources being rapidly depleted in many countries, the last decade has seen a significant trend towards using more alternative materials for construction purpose. In Norway the development and implementation of crushed aggregate technology has been the most important way to get around the problem with increased resource scarcity. Today Norway is one of the European countries with the highest percentage of crushed/manufactured aggregates. A crushed product will reveal a different particle size distribution, a sharper, more angular particle shape, and not least – a significantly different mineral composition. The latter may often be characterised by more polymineral composition, and it will also much more depend on the local bedrock. When handled with care and knowledge, these differences can give the user a lot of new opportunities relating to materials design. In Norway, research is currently being undertaken to study the properties of crushed aggregates for road construction – specifically relating to frost heave protection and the development of new guidelines for this purpose. During the spring 2014 The Norwegian Public Roads Administration introduced a new handbook with requirements for roads construction in Norway, including new specifications for the frost protection layer. When pavements are constructed over moist and/or frost susceptible soils in cold and humid environments, the frost protection layer also becomes a very important part of the road system. According to new specification, the allowed amount of fines content (

Bidragsytere

Aktiv cristin-person

Elena Scibilia

Bidragsyterens navn vises på dette resultatet som Elena Kuznetsova
  • Tilknyttet:
    Forfatter
    ved Institutt for bygg- og miljøteknikk ved Norges teknisk-naturvitenskapelige universitet

Svein Willy Danielsen

  • Tilknyttet:
    Forfatter
    ved Infrastruktur ved SINTEF AS
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