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  2. Shrink–swell capacity - Wikipedia

    en.wikipedia.org/wiki/Shrink–swell_capacity

    Swimming pool shells can crack due to this pressure as well, and leaky pools can also introduce a lot of water into the surrounding soils over time, which could end up lifting pool decks and nearby foundations. [3] Annually, there is an estimated $7 billion in damage caused by clay shrink-swell soils. [11]

  3. Vermiculite - Wikipedia

    en.wikipedia.org/wiki/Vermiculite

    Vermiculite is a hydrous phyllosilicate mineral which undergoes significant expansion when heated. Exfoliation occurs when the mineral is heated sufficiently; commercial furnaces can routinely produce this effect. Vermiculite forms by the weathering or hydrothermal alteration of biotite or phlogopite. [3]

  4. Sodium silicate - Wikipedia

    en.wikipedia.org/wiki/Sodium_silicate

    This repair can last two years or longer, and symptoms disappear instantly. However, this repair works only when the sodium silicate reaches its "conversion" temperature. Also, sodium silicate (glass particulate) contamination of lubricants is detrimental to their function, and contamination of engine oil is a serious possibility in situations ...

  5. Swimming pool service technician - Wikipedia

    en.wikipedia.org/wiki/Swimming_pool_service...

    This swimming pool service technician is using a pool skimmer to remove debris from a courtyard fountain at an apartment complex in Tulsa, Oklahoma. A swimming pool service technician is a person who maintains swimming pools , including keeping the water clean and safe by fixing pool equipment such as pumps, motors and water filters.

  6. Fireproofing - Wikipedia

    en.wikipedia.org/wiki/Fireproofing

    Spray gypsum-based plaster fireproofing being installed. Circuit integrity fireproofing of cable trays, using calcium silicate boards. Damaged spray fireproofing. Fireproofing is rendering something (structures, materials, etc.) resistant to fire, or incombustible; or material for use in making anything fire-proof. [1]

  7. Composite repair - Wikipedia

    en.wikipedia.org/wiki/Composite_repair

    The most important technical challenges in the implementation of a successful composite patch repair are: (a) proper design of the repair patch and the procedures that will be followed, (b) selection of the most suitable materials and tools for the application, (c) careful surface preparation, (d) implementation of the composite patch repair ...

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