Sökning: "Cement"

Visar resultat 1 - 5 av 184 avhandlingar innehållade ordet Cement.

  1. 1. Systems Analysis for Eco-Industrial Development : Applied on Cement and Biogas Production Systems

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Roozbeh Feiz; Linköpings universitet.; Linköpings universitet.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; industrial ecology; eco-industrial development; multi-criteria analysis; life-cycle assessment; MCA; LCA; uncertainty management; systems analysis; industrial symbiosis; cement; biogas; cement production; biogas solutions;

    Sammanfattning : Our industrial systems are not sustainable—a major challenge which demands several types of responses. Eco-industrial development can be seen as such a response, with the goal to establish industrial systems that are both ecological and economical. Industrial Ecology is another closely related response. LÄS MER

  2. 2. Early Hydration of Portland Cement

    Detta är en avhandling från Chalmers University of Technology

    Författare :Rikard Ylmén; Chalmers tekniska högskola.; Chalmers University of Technology.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; cement; hydration; infrared spectroscopy; FTIR; nano-silica; freeze-drying; carbonation; calorimetry; SEM;

    Sammanfattning : The production of cement is responsible for approximately 7 % of the total CO2 emissions caused by man. To compensate for high energy consumption and CO2 emission, thus making the utilization of concrete more sustainable, several strategies can be used. LÄS MER

  3. 3. Moisture permeability of mature concrete, cement mortar and cement paste

    Detta är en avhandling från Division of Building Materials, LTH, Lund University

    Författare :Göran Hedenblad; Lunds universitet.; Lund University.; [1993]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cement paste; moisture transport; moisture permeability; concrete; moisture flow; cement mortar;

    Sammanfattning : Moisture permeability tests were performed on specimens of concrete, cement mortar and cement paste with the bottom side in water or in moist air and the upper side in a relative humidity of 33 %. The distribution of the relative humidity within the specimen was measured, at stationary conditions, as well as the amount of water which pass through the specimen. LÄS MER

  4. 4. Calcium aluminate cement as dental restorative Mechanical properties and clinical durability

    Detta är en avhandling från Umeå : Umeå universitet. Institutionen för odontologi

    Författare :Karin Sunnegårdh-Grönberg; Umeå universitet.; [2004]
    Nyckelord :mechanical properties; clinical; restorations; ceramic; cement; resin composite; adaptation; SEM; odontologi; Odontology;

    Sammanfattning : In 1995, the Swedish government recommended the discontinuation of amalgam as restorative in paediatric dentistry. Because the mercury content in amalgam constitutes an environmental hazard, its use has declined. LÄS MER

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

    Detta är en avhandling från Lund : Division of Building Materials, Lund University

    Författare :Dimitrios Boubitsas; RISE.; [2016]
    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