Summary: Introduction Building Physics And Material Science

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  • Week 1

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  • What are important aspects for a building?

    - Topology
    - Morphology
    - Geometry
    - Texture
    - Surface
    - Materialization
  • What is the influence of thermal insulation?

    Facades went from being monolithic (19th century) to layered (20th century)
  • The stiffness of a material depends on...

    The atomic bonding
    - Primary (metal, ionic, covalent)
    - Secondary (Van der Waals bonds)
  • What is body stiffness?

    E times I (Moment of Inertia, determined by shape)
  • What is the consequence of brittleness?

    There is just compressive strength, meaning there can only be a small span
  • What is the property of hardness?

    Resistance of a surface against identation by a harder material
  • What are some physical properties?

    Thermal (conductivity, capacity, expansion)
    Microstructural (density, porosity, permeability)  
    Optical (colour, texture, reflection)
    Electrical 
    Magnetic
  • What is a monolithic facade?

    This facade is made of one layer of a material
  • Why does one apply multiple layers in a facade?

    Thermal resistances can be added, which means the transmittance is U = 1/Rt
  • What does porosity affect?

    • Mechanical properties: compressive, tensile and flexural strength, E-modulus
    • Physical properties: Thermal conductivity, sound absorption, liquid/gas transfer, capillarity 
    • Surface roughness (adherence of dirt) --> increases damage risks 
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