TY - JOUR T1 - Initial rheological description of high performance concretes JO - Materials Research A1 - Castro, Alessandra Lorenzetti de A1 - Liborio, Jefferson Benedicto Libardi SN - 1516-1439 UL - 10.1590/S1516-14392006000400011 VL - 9 Y1 - 2006 PB - Brasil ER -