Essays about: "härdningstid"

Found 4 essays containing the word härdningstid.

  1. 1. Optimization of a one-part geopolymerization method for lab-scale, using waste glass wool as a precursor

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Oscar Enander; [2022]
    Keywords : Materials chemistry; Geopolymer; Glass wool; Recycling; Curing time; Curing temperature; Cement; Chemistry;

    Abstract : Geopolymers are amorphous inorganic polymeric structures. They are used as binding agents and can be compared to cementitious materials such as ordinary Portland cement. This thesis aims to produce geopolymers from waste glass wool. Today glass wool is found in isolation, both thermal and sound insulation, and it is not being recycled. READ MORE

  3. 2. Concrete in vertical slipforms : A process for determining a suitable concrete composition

    University essay from KTH/Betongbyggnad

    Author : Ellen Gegerfelt; Alva Hasselqvist; [2021]
    Keywords : Slipforming; fresh concrete; workability; consistency; alternative binders; slipform rate; lifting cracks; delamination; lump formation; Glidformsgjutning; färsk betong; arbetbarhet; konsistens; alternativa bindemedel; glidformshastighet; lyftsprickor; delaminering; klumpbildning;

    Abstract : In the construction industry of today, many projects are getting bigger, higher and more complicated than ever before. The most important material in these projects is concrete and the process of casting has developed a lot during the last century. READ MORE

  4. 3. Evaluation of the mechanical properties of structural adhesives cured under different environmental conditions

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

    Author : Sebastian Wilhelmsson; Joel Ågren; [2021]
    Keywords : structural adhesive; methyl methacrylate; curing; temperature; water; tensile testing; DSC;

    Abstract : Today, structural adhesives are found extensively in load-bearing engineering applications, as their use can be advantageous compared to other fastening methods. However, the characteristics of adhesives are far more complex, making it challenging to predict their behavior in different service conditions. READ MORE

  5. 4. Formulation and Assessment of Hexamethylene-tetramine Filled Solid Fuel Grains

    University essay from KTH/Fiber- och polymerteknologi

    Author : Mårten Schollin; [2021]
    Keywords : Hybrid rocket; solid fuel grain; hexamine; pot-life; tensile properties; Hybridraket; fast raketbränsle; hexamin; härdningstid; dragegenskaper;

    Abstract : Hybridraketer har inte sett så mycket användning som dess motsvarigheter som använder flytande eller fasta drivmedel. De främsta orsakerna kan förklaras med att hybridraketer historiskt sett haft lägre regressionshastighet och bränsletäthet. Inverkan av nackdelarna har dock minskat tack vare fortsatt forskning rörande hybridraketer. READ MORE