Concrete slab pour 1B was supposed to be routine, occurring early in the construction of a parking garage in the Midwest. However, low compressive strength issues led to lengthy and costly project delays, as well as some interesting theories about the causes.
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When it comes to parking garages, durability is key, as they are often located in busy metro areas where closure, repair, or reconstruction can be disruptive. Time, labor, and material costs for renovation are also prohibitive. These structures are generally made from reinforced cast-in-place or precast concrete, making corrosion one of the most common challenges to durability.
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In the 1960s, construction methods gained a speed and flexibility with “plastic.” However, it is now apparent replacing cement, rock, and water with plastics has unanticipated negative effects, such as shorter life cycles as a result of deterioration and corrosion, which have affected buildings, bridges, and highways.
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