00307nam a2200109Ia 4500008004100000082001000041082000800051245007300059245002800132260002800160300000900188231017s9999    xx            000 0 und d  a625.8  bCRO 0aEarly opening of Portland cement concrete (PCC) pavements to traffic 0cUniversity of Minnesota  bUniversity of Minnesota  c30cm