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  • 1.
    Franzén, Markus
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Ecotechnology and Sustainable Building Engineering.
    Bascement - Flygaskans inverkan: En belysning av flygaskans inverkan på den slutgiltiga produkten betong2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

     

    The construction industry considers itself seeing an increase in moisture problems since Cementa introduced its new product Bascement in the market.

    The Bascement product also contains about 11 percent fly ash in addition to Portland clinker and was developed just like the Byggcement to reduce carbon dioxide emissions.

    Fly ash is a residual product from coal-fired power and heat plants.

    The admixture of fly ash is an effective way of reducing the amount of portland clinker that emits large amounts of carbon dioxide during the manufacturing phase.

     

    The purpose of studying the Bascement and its binder fly ash is to highlight problems and differences that have arisen as a result of the introduction of Bascement. The reader should have a base in a complex question and be able to make his own evaluations.

     

    The study will only evaluate the impact of the fly ash on the concrete in the form of dehydration and compactness. Other physical parameters will not be evaluated.

    Test results performed on Basement will only be examined against Byggcement and portlandcement.

     

    The theory of the subject was built up through literature studies, where the method also emerged and was carried out in the form of interviews. The questions in the interviews are carefully selected through literature studies and extensive discussions with expert persons. This has formed the basis for the work process that focuses on methodical problem solving and validity in the report.

     

    Extensive research has been carried out to understand how concrete with Basement occurs.

    Self-drying, diffusion drying and compactness are some essential factors, but if it is possible to calculate self-drying and diffusion drying today, the parties are not in agreement.

    Is Bascement the cause of the problem of dehydration of concrete, or is it an image created by mass media? It is not easy to say if it is a moisture problem or not with Bascement.

     

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