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  2. Thermal destratification - Wikipedia

    en.wikipedia.org/wiki/Thermal_destratification

    Destratification is the reverse of the natural process of thermal stratification, which is the layering of differing (typically increasing) air temperatures from floor to ceiling. Stratification is caused by hot air rising up to the ceiling or roof space because it is lighter than the surrounding cooler air.

  3. Ceiling temperature - Wikipedia

    en.wikipedia.org/wiki/Ceiling_temperature

    At low temperatures, the enthalpy term is greater than the term, which allows polymerization to occur. At the ceiling temperature, the enthalpy term and the entropy term are equal, so that the rates of polymerization and depolymerization become equal and the net polymerization rate becomes zero. [ 1 ]

  4. Concrete slab - Wikipedia

    en.wikipedia.org/wiki/Concrete_slab

    A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. Steel- reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ceilings, while thinner mud slabs may be used for exterior paving ( see below ).

  5. Concrete degradation - Wikipedia

    en.wikipedia.org/wiki/Concrete_degradation

    When concrete is subject to an excessive temperature increase during its setting and hardening as in massive concrete structures from where cement hydration heat cannot easily escape (semi-adiabatic conditions), the temperature gradients and the differential volume changes can also cause the formation of thermal cracks and fissures.

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  7. Properties of concrete - Wikipedia

    en.wikipedia.org/wiki/Properties_of_concrete

    Concrete has a very low coefficient of thermal expansion, and as it matures concrete shrinks. All concrete structures will crack to some extent, due to shrinkage and tension. Concrete which is subjected to long-duration forces is prone to creep. The density of concrete varies, but is around 2,400 kilograms per cubic metre (150 lb/cu ft). [1]

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  9. Kristin Cavallari Caught Intruder Crawling on Her Floor While ...

    www.aol.com/lifestyle/kristin-cavallari-caught...

    Noting, “My kids still do not know [this] to this day,” Cavallari — who shares sons Camden, 12, and Jaxon, 10, and daughter Saylor, 9, with ex Jay Cutler — added that the event took place ...