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  2. List of thermal conductivities - Wikipedia

    en.wikipedia.org/wiki/List_of_thermal_conductivities

    Instead the formula that would fit some of the Bonales data is k ≈ 2.0526 - 0.0176TC and not k = -0.0176 + 2.0526T as they say on page S615 and also the values they posted for Alexiades and Solomon do not fit the other formula that they posted on table 1 on page S611 and the formula that would fit over there is k = 2.18 - 0.01365TC and not k ...

  3. Kilogram per cubic metre - Wikipedia

    en.wikipedia.org/wiki/Kilogram_per_cubic_metre

    The kilogram per cubic metre (symbol: kg·m −3, or kg/m 3) is the unit of density in the International System of Units (SI). It is defined by dividing the SI unit of mass, the kilogram, by the SI unit of volume, the cubic metre. [1]

  4. Brick - Wikipedia

    en.wikipedia.org/wiki/Brick

    The density of solid clay bricks is around 2000 kg/m 3: this is reduced by frogging, hollow bricks, and so on, but aerated autoclaved concrete, even as a solid brick, can have densities in the range of 450–850 kg/m 3. Bricks may also be classified as solid (less than 25% perforations by volume, although the brick may be "frogged," having ...

  5. Density system unit unit-code symbol or abbrev. notes sample default conversion combination output units Metric: kilogram per cubic metre: kg/m3 kg/m 3: 1.0 kg/m 3 (1.7 lb/cu yd)

  6. Thermal diffusivity - Wikipedia

    en.wikipedia.org/wiki/Thermal_diffusivity

    ρ is density (kg/m 3) Together, ρc p can be considered the volumetric heat capacity (J/(m 3 ·K)). As seen in the heat equation , [ 5 ] ∂ T ∂ t = α ∇ 2 T , {\displaystyle {\frac {\partial T}{\partial t}}=\alpha \nabla ^{2}T,} one way to view thermal diffusivity is as the ratio of the time derivative of temperature to its curvature ...

  7. Gypsum block - Wikipedia

    en.wikipedia.org/wiki/Gypsum_block

    the medium gross density of 850 kg/m 3 to 1.100 kg/m 3 (white coloured blocks, suitable for standard usage) the high gross density blocks of 1.100 kg/m 3 to 1.500 kg/m 3 (reddish colour, suitable for walls with higher acoustic performance requirements) The dimensions of these blocks are: length 500 mm, height 500 mm. Four blocks thus make 1 m 2.

  8. Fly ash brick - Wikipedia

    en.wikipedia.org/wiki/Fly_ash_brick

    Fly ash bricks. Fly ash brick (FAB) is a building material, specifically masonry units, containing class C or class F fly ash and water. Compressed at 28 MPa (272 atm) and cured for 24 hours in a 66 °C steam bath, then toughened with an air entrainment agent, the bricks can last for more than 100 freeze-thaw cycles.

  9. Specific strength - Wikipedia

    en.wikipedia.org/wiki/Specific_strength

    The SI unit for specific strength is Pa⋅m 3 /kg, or N⋅m/kg, which is dimensionally equivalent to m 2 /s 2, though the latter form is rarely used. Specific strength has the same units as specific energy , and is related to the maximum specific energy of rotation that an object can have without flying apart due to centrifugal force .