Sökning: "pozzolan"

Hittade 4 uppsatser innehållade ordet pozzolan.

  1. 1. The Correlation of Workability and Mechanical Strength in air lime binders with different aggregates and pozzolan

    Master-uppsats, Göteborgs universitet/Institutionen för kulturvård

    Författare :Natalia Ioanna Dedousi; [2021-03-16]
    Nyckelord :conservation; air-limes; binders; aggregates; pozzolan;

    Sammanfattning : In this study are investigated two air lime binders common in conservation practice. The first one is a commercial air lime, emerging from dry slaking, which was left to age for 4 months. The second is a natural quicklime emerging from the burning in a traditional lime kiln from Mariestad, Sweden. LÄS MER

  3. 2. Concrete with low carbon dioxid emissions : Reduced amount of cement with husk ashes

    Kandidat-uppsats, KTH/Byggteknik och design

    Författare :Elsa Johannessen; Julia Knutsson; [2021]
    Nyckelord :Concrete; Oat husk ash; Rice husk ash; Carbon dioxide emissions; Pozzolanic material; Environmental impact; Reduced amount of cement; Betong; Havreskalaska; Risskalaska; Koldioxidutsläpp; Puzzolana material; Miljöpåverkan; Reducerad cementmängd;

    Sammanfattning : The world is facing a major climate threat where carbon dioxide emissions are in focus. At the same time, society requires new buildings and developed infrastructure. Concrete is one of the most common building materials and 30 billion tonnes are produced annually, which corresponds to about 6 percent of the world's carbon dioxide emissions. LÄS MER

  4. 3. Alternative methods to prevent thermal cracking in concrete

    M1-uppsats,

    Författare :Alexander Barchin; Navid Sedighi; [2019]
    Nyckelord :Massive concrete structures; heat development; cement hydration; temperature reduction; cracking; fly ash; ice; coarse aggregates; cooling methods; practical tests.; Massiva betongkonstruktioner; värmeutveckling; cementhydrataion; temperaturreducering; sprickbildning; flygaska; is; grov ballast; kylningsmetoder praktiska försök.;

    Sammanfattning : In the construction industry, concrete is the most common material, because of its good properties such as compressive strength and endurance. Concrete is a composition of several different materials where one of the main components is cement. When the hydration process starts, large amount of heat is generated. LÄS MER

  5. 4. Terrasstabilisering - frostbeständigheten i stabiliserade jordar

    Kandidat-uppsats, Lunds universitet/Utbildningar i Helsingborg

    Författare :Niklas Pettersson; André Blohmé; [2012]
    Nyckelord :terrasstabilisering; frost; bindemedel; beständighet; tryckhållfasthet; Technology and Engineering;

    Sammanfattning : The thesis examines various stabilised soils resistance to frost and to increase understanding in the field. By variation of soil materials, binders and water content, the expectation is to find a link between the various factors and frost resistance. LÄS MER