After placing, vibrating, and finishing concrete for a bridge deck, contractors sometimes notice cracks forming directly over the top-mat rebar.
The U.S. Census Bureau projects the value of construction put in place in 1999 will slightly exceed $700 billion. What share of that number does concrete work command? And what is the size of the different market segments?
For more than 50 years, concrete finishers have been warned about the dangers of using tools or methods that densify and seal the concrete surface before bleeding has stopped.
What do curved retaining walls and stadium risers have in common? They're just two of the unique applications contractors have found for using slipforming technology.
The benefits of well-cured concrete don't apply to floors that must reach a low moisture-vapor emission rate before floor coverings are installed.
