Sökning: "limestone"

Visar resultat 21 - 25 av 99 avhandlingar innehållade ordet limestone.

  1. 21. Chloride transport and chloride threshold values : studies on concretes and mortars with Portland cement and limestone blended cement

    Författare :Dimitrios Boubitsas; RISE; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cement; Mortar; Concrete; Corrosion; Reinforcement; Chloride ions;

    Sammanfattning : Reinforced concrete is one of the most widely used building materials and if it is properly designed and produced, it is an extremely durable material with a service life up to 100 years. However, under certain environmental conditions the service life of reinforced concrete structures is more limited. LÄS MER

  3. 22. Vegetation development and sheep grazing in limestone grasslands of South Öland, Sweden

    Författare :Ejvind Rosén; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ekologi: botanik; [Ekologi]; Växter; Får; botanik; Växtgeografi; Floror; Växter; Botanik; Naturvetenskap; Sverige; Växtekologi; Ekologi; Geografi; Öland; Götaland; Ekologi: botanik;

    Sammanfattning : .... LÄS MER

  4. 23. The role of regeneration by seed in the dynamics of limestone grassland communities

    Författare :Graciela Rusch; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  5. 24. Studies of the efficiency of granulated blast furnace slag and limestone filler in mortars : long-term strength and chloride penetration

    Författare :Dimitrios Boubitsas; RISE; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  7. 25. From pattern to process : Studies on limestone grassland, with emphasis on the bryophyte-lichen layer and its effects on vascular plants

    Författare :Manuela Zamfir; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ecology; Alvar; Bryophytes; Carousel model; Community structure; Competition; Dynanmics; Interactions; Lichens; PASFRAN; pattern analysis; Sweden; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi; ekologisk botanik; Ecological Botany;

    Sammanfattning : Patterns in space and time at different scales in the bryophyte-lichen layer, aud multi-species spatial patterns of bryophytes, lichens and vascular plants were studied in Avenetum limestone grassland on the Great Alvar of the Baltic Island of Öland, south-eastem Sweden.Spatiotemporal patterns of bryophytes and Iichens in grazed and ungrazed alvar grassland demonstrated that dominant species forming large patches were relatively stable in time, whereas less frequent species forming small patches were more mobile. LÄS MER