Concrete companies in Ohio are reacting to changes in road bidding procedures after the state's transportation director has reinstituted asphalt-price adjustments. The director, Jerry H. Wray, rescinded a 2009 Ohio Department of Transportation order that had required asphalt pavers to factor in future asphalt prices over the life of the project. Concrete pavers say the change puts them at a distinct disadvantage because their prices stay relatively stable.