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  2. Cracks and safety concerns: What's going on at this ... - AOL

    www.aol.com/cracks-safety-concerns-whats-going...

    Cracked and crumbling concrete throughout the garage is being repaired out of fears falling concrete could harm someone, according to community development director Joe Dulin.

  3. Concrete degradation - Wikipedia

    en.wikipedia.org/wiki/Concrete_degradation

    Example of flat piece of concrete having dislodged with corroded rebar underneath, Welland River bridge across Queen Elizabeth Way in Niagara Falls, Ontario. The expansion of the corrosion products (iron oxides) of carbon steel reinforcement structures may induce internal mechanical stress (tensile stress) that cause the formation of cracks and disrupt the concrete structure.

  4. Concrete pavement restoration - Wikipedia

    en.wikipedia.org/wiki/Concrete_Pavement_Restoration

    Dowel bar retrofit (DBR) is a process that re-establishes load transfer capability on joints and cracks by installing epoxy-coated, round steel dowels into existing concrete pavement across transverse joints and/or cracks. Slots are cut using diamond-tipped saw blades; the existing concrete is removed and the dowels are placed in the slots ...

  5. Diamond grinding of pavement - Wikipedia

    en.wikipedia.org/wiki/Diamond_grinding_of_pavement

    Diamond grinding is a pavement preservation technique that corrects a variety of surface imperfections on both concrete and asphalt concrete pavements. Most often utilized on concrete pavement, diamond grinding is typically performed in conjunction with other concrete pavement preservation (CPP) techniques such as road slab stabilization, full- and partial-depth repair, dowel bar retrofit ...

  6. 2023 New York City parking garage collapse - Wikipedia

    en.wikipedia.org/wiki/2023_New_York_City_parking...

    In 2003, the DOB found concrete defects in the stairs, along with cracks in the first-floor ceiling, spalling concrete, steel beams with missing concrete coverings, and defective concrete with exposed cracks. [1] [5] In 2009, broken stairs and loose concrete was noted in numerous areas of the parking garage. [5]

  7. Basement waterproofing - Wikipedia

    en.wikipedia.org/wiki/Basement_waterproofing

    In poured concrete foundations, cracks and pipe penetrations are the most common entry points for seepage. These openings can be sealed from the interior. Epoxies , which are strong adhesives, or urethanes can be pressure injected into the openings, thus penetrating the foundation through to the exterior and cutting off the path of the seepage.

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