Essays about: "Betong"

Showing result 11 - 15 of 219 essays containing the word Betong.

  1. 11. The effect of high-ratio biochar replacement in concrete on performance properties : Experimental study of biochar addition to concrete mixture.

    University essay from Luleå tekniska universitet/Byggkonstruktion och brand

    Author : Mina Turovaara; [2022]
    Keywords : Biochar; Concrete; Sustainability; Cement; Biochar in concrete; Carbon dioxide; Building industry; Micro-structure; Biokol; Betong; Hållbarhet; Cement; Biokol i betong; Koldioxid; Byggsektorn; Mikrostruktur;

    Abstract : Globally the emissions of carbon dioxide from anthropogenic activities are an issue regarding the future of our planet. Today the building industry is a large contributor with approximately 10 percent of the total emissions coming from energy usage in the building industry, where about 7 percent of the global CO2 emissions are connected to the cement industry. READ MORE

  3. 12. Promoting Circular Economy By Partial Replacement Of Cement With SCMs : A Review On Wood Ash

    University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Author : Asal Salman; [2022]
    Keywords : Cement; Circular economy; Concrete industry; SCM; Wood ash;

    Abstract : The European Commission adopted the first action plan for the transition to a circular economy in 2015. As a result, the concrete industry’s goal is for all concrete produced in Sweden to be climate neutral by 2045. READ MORE

  4. 13. Environmental and technical evaluation of cement reduction and test methods for fibre reinforced shotcrete in tunnels

    University essay from KTH/Betongbyggnad

    Author : Elin Brodd; Lina Östlund; [2022]
    Keywords : Shotcrete; Global Warming Potential; Environmental Product Declaration; Tunnel construction; Fibre reinforcement; Compressive strength; Residual strength; GGBS; Sprutbetong; Klimatpåverkan; Miljövarudeklaration; Tunnelbyggande; Fiberarmering; Tryckhållfasthet; Residualhållfasthet; Granulerad Masugnsslagg;

    Abstract : The dominating support method for hard rock tunnels today is use of fibre reinforced shotcrete in combination with rock bolts. The fibre reinforced shotcrete secures smaller blocks, while rock bolts are used to support larger blocks in the rock. Application of shotcrete is done by spraying against the rock surface using compressed air. READ MORE

  5. 14. Climate change mitigation from biochar production at farm level : A time dynamic LCA study of wheat

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Louise Jungefeldt; [2022]
    Keywords : Pyrolysis; agricultural by-products; life cycle assessment; waste valorization; carbon sequestration;

    Abstract : Agricultural production in Sweden account for a large contribution of the territorial GHG emissions. System optimization, fossil fuel removal and increased circularity is therefore of great importance in order to reach the national net zero emission target by 2045. READ MORE

  6. 15. Accelerated Carbonation Of Cement Pastes And Mortars

    University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Author : Pejman Hajibabaei; [2022]
    Keywords : karbonatisering; accelerated carbonation; SCMs; cement paste; carbonation depth;

    Abstract : Concrete structures have the largest surface area of all human made structures. Large surface area makes concrete capable to absorb CO2 from environment during its lifetime. It is estimated that concrete during its lifetime can absorb about 15-20% of CO2 which had produced in cement production. READ MORE