The slump value calculation device, being the slump value calculation device which calculates the slump value of the aforementioned concrete in mixing from the load value which depends on the mixing mixer in mixing time and the aforementioned mixing

摘要

PROBLEM TO BE SOLVED: To provide a slump value calculating device for accurately calculating a slump value of concrete in an early stage in a kneading process.;SOLUTION: The slump value calculation system 100 calculates a slump value of the concrete under kneading based on the kneading period in the kneading process of concrete and a load value charged on a kneading mixer in the kneading period. The slump calculation system 100 comprises a first arithmetic section 114 for determining a first function showing the relationship between the kneading period and the measurement data obtained as the load value and calculating a calculation load value in kneading period for calculation at the completion time of measurement derived from the first function, and a second arithmetic section 116 for calculating a final slump value by substituting the calculation load value into a second function showing the relationship determined based on the data of the slump value and the load value when a previously obtained mixing factor of concrete is the same.;COPYRIGHT: (C)2008,JPO&INPIT