A High-Performance Floor

Despite a low water-cement ratio (0.49) the concrete for this floor had a 7-inch slump thanks to a high-range water reducer.

One important requirement was that the mix have normal setting time; delayed setting concrete can lead to blisters and delamination.

Joints were saw-cut only at column lines and mid-bay, resulting in spacing of 30 feet.

A low-shrinkage mix was mandatory to minimize joints and ensure minimal cracking and curling.

This outstanding floor is the result of clear and current requirements for a long-term, high-performance industrial floor.

At the 12-month walk-through on this 1.4 million square foot building, only one 4-foot-long crack was found.

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