Tag: slab

  • Craze Cracks

    Craze Cracks

    What are craze cracks? Crazing is the development of a network of fine random cracks or fissures on the surface of concrete or mortar caused by shrinkage of the surface layer. Craze cracks are small pattern cracks on a slab’s surface. They are associated with early surface drying, causing the immediate surface to shrink differently […]

  • Flatwork Discoloration

    Flatwork Discoloration

    Flatwork Discoloration: Cause and Remedies Folds and wrinkles in curing blankets become the location of water-evaporation and condensation cycles cuasing flatwork discoloration. Question: Last fall we placed a concrete sidewalk in front of a downtown office building. Because it was relatively cold weather, we used a winter flatwork mix and covered the slab with curing […]

  • Fiber-Reinforced Concrete Withstands Heavy Loads

    Fiber-Reinforced Concrete Withstands Heavy Loads

    by Kate Hamilton The fiber-reinforced concrete at the Caterpillar warehouse in Michigan was designed to withstand the weight of heavy-duty construction equipment The Grand Rapids, Mich.-based Caterpillar warehouse demands a lot of its 110,000-square-foot concrete slab. Composed of showrooms, exterior pavements, composite metal decks, and engine service bays, it gets a beating from the several-ton […]

  • Time and Labor Savings in Store with Macro Fibers

    Time and Labor Savings in Store with Macro  Fibers

    by Concrete Construction Staff Structural engineers for the project, specified Grace’s STRUX 90/40 synthetic macrofibers Wal-Mart’s new Salt Lake City Supercenter offers shoppers everything from groceries and general merchandise to a McDonald’s, vision center, hair salon, and portrait studio all under one roof. Encompassing more than 200,000 square feet of retail space, the store attracts […]