The Challenge: Place up to 140,000 cubic yards of tremie concrete to construct a 2,700-foot-long concrete dam across the Ohio River without draining the water.

Placing/finishing concrete is time sensitive and susceptible to environmental conditions. Ideally you want to work within an 8- to 16-hour window for place, finish and cure/saw cutting operations.

OLMSTED, Ill. (April 23, 2013) -- The "warm joint," in tandem with the application of self-consolidating concrete, gave the Olmsted team the time to beat the rising Ohio River by making placement ...

"Our 47Z-meter is placing concrete in a method similar to our Telebelts into loading trucks or the large-scale conveyors," says Schermerhorn. "In addition, the 47Z has also helped to pump and place ...

One method involves placing paraffin inside capsules, then mixing the capsules into concrete. This method helps melt snow quickly, but it was effective across only a short range of temperatures.