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Melcher-Dallas, United States

Simonelli R.M.,Structural Services Inc. | Simonelli R.M.,Structural Services Inc. | Walker W.W.,Structural Services Inc. | Walker W.W.,Structural Services Inc. | And 2 more authors.
Concrete Construction - World of Concrete

A contractor needs to focus on detail and consistency when finishing near edges, blockouts, drains, cleanouts, and other penetrations. Contractors should attend practical seminars that cover basic concepts of slab design so they can protect themselves from problems that could occur due to improper design. For larger areas, at least two 10-foot riders are preferable to smaller equipment due to their production and contribution to a flatter surface. Floating should start near edges, walls, and openings because these areas will set faster, especially when exposed to sunlight. Determining when to change from float shoes or pans to combination blades and then to finish blades requires an experienced operator. When conditions are accurate for surface crusting to occur, evaporation retardant between finishing steps should be used. Source

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