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  2. Concrete slab - Wikipedia

    en.wikipedia.org/wiki/Concrete_slab

    The second consideration is the high thermal mass of concrete slabs, which applies similarly to walls and floors, or wherever concrete is used within the thermal envelope. Concrete has a relatively high thermal mass, meaning that it takes a long time to respond to changes in ambient temperature. [9]

  3. Concrete degradation - Wikipedia

    en.wikipedia.org/wiki/Concrete_degradation

    The steel shuttering pinches the top surface of a concrete slab due to the weight of the next slab being constructed. Concrete slabs, block walls and pipelines are susceptible to cracking during ground settlement, seismic tremors or other sources of vibration, and also from expansion and contraction during adverse temperature changes.

  4. AFt phases - Wikipedia

    en.wikipedia.org/wiki/AFt_phases

    For massive concrete structures whose temperature at core will likely exceed 65 °C during the cement setting and hardening and moreover will be immersed under water or exposed to alkali leaching, the only effective solution to avoid, or to minimize, delayed ettringite formation is to eliminate the tricalcium aluminate C 3 A phase in the cement ...

  5. Creep (deformation) - Wikipedia

    en.wikipedia.org/wiki/Creep_(deformation)

    Creep that starts below or at 0.5 ‍ T m is called "low temperature creep" because diffusion is not very progressive at such low temperatures, and the kind of creep that occurs is not diffusion-dominant and is related to other mechanisms. [53] Time. As mentioned previously, creep is a time-dependent deformation.

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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]

  8. Play Just Words Online for Free - AOL.com

    www.aol.com/games/play/masque-publishing/just-words

    Just Words. If you love Scrabble, you'll love the wonderful word game fun of Just Words. Play Just Words free online! By Masque Publishing

  9. Here Are The All-Time Record Cold Low Temperatures In All 50 ...

    www.aol.com/heres-time-record-cold-low-170000238...

    Alaska holds the all-time U.S. record. The mercury plummeted to 80 degrees below zero on Jan. 23, 1971, in Prospect Creek, north of Fairbanks.