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  2. Austin Dam failure (Pennsylvania) - Wikipedia

    en.wikipedia.org/wiki/Austin_Dam_failure...

    Because it was deemed too expensive, an underground vertical concrete slab, which had been designed to prevent water seeping under the dam through the soil on which the dam sat, was not built, on Bayless's orders. At the time, Pennsylvania had no state regulations or requirements about the building of dams. [4]

  3. Waffle slab foundation - Wikipedia

    en.wikipedia.org/wiki/Waffle_slab_foundation

    Waffle slab foundations adhere to International Building Code requirements. By 2008, most states put into effect the changes adopted in the 2006 IBC and, in regards to foundations, the on-grade mat foundation has become a more attractive design because, as an engineered system, it already accommodates the 2008 design recommendations, and required no major modifications to bring it into compliance.

  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. Rubble trench foundation - Wikipedia

    en.wikipedia.org/wiki/Rubble_trench_foundation

    A steel-reinforced concrete grade beam may be poured at the surface to provide ground clearance for the structure. If an insulated slab is to be poured inside the grade beam, then the outer surface of the grade beam and the rubble trench should be insulated with rigid XPS foam board, which must be protected above grade from mechanical and UV ...

  6. But the state has set up a trust fund to help — with homeowners receiving up to $190,000 toward foundation replacement. The fund is paid for by a $12 per year surcharge on every home insurance ...

  7. Cement City Historic District - Wikipedia

    en.wikipedia.org/wiki/Cement_City_Historic_District

    The district includes 80 Prairie School concrete residences built in 1916–17. The homes served as housing for employees of the American Steel and Wire Company . Poured-in-place concrete houses had become popular in large-scale housing developments at the time, partly thanks to promotion by Thomas Edison ; the homes built in Donora used a ...

  8. Foundation (engineering) - Wikipedia

    en.wikipedia.org/wiki/Foundation_(engineering)

    Another common type of shallow foundation is the slab-on-grade foundation where the weight of the structure is transferred to the soil through a concrete slab placed at the surface. Slab-on-grade foundations can be reinforced mat slabs, which range from 25 cm to several meters thick, depending on the size of the building, or post-tensioned ...

  9. Concrete leveling - Wikipedia

    en.wikipedia.org/wiki/Concrete_leveling

    In civil engineering, concrete leveling is a procedure that attempts to correct an uneven concrete surface by altering the foundation that the surface sits upon. It is a cheaper alternative to having replacement concrete poured and is commonly performed at small businesses and private homes as well as at factories, warehouses, airports and on roads, highways and other infrastructure.

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