method for moisture measurement of bulk material in the manufacture of baustoffmischungen chargenweisen.

摘要

For a method for determining the inherent moisture content of the respective aggregate fractions in the batch production of building material compositions, in particular concrete compositions, the dry weight belonging to a fraction serving as reference value for the actual aggregate fraction, it is proposed to determine, for each of the aggregate fractions in its completely dry state, by means of volumetric dosing a reference value for mass throughput and then to supply the aggregate fractions necessary for a given building material composition separately after one another to a balance and to weigh them, from which, by means of the dosing time of the respective actual aggregate fraction and its reference value for mass throughput of the dry fraction, a weight value is then determined, with which the weighing result is compared. The inherent moisture content of the dosed aggregate fraction can be determined via the difference between the weighing result on the one hand and the weight value for the dry aggregate fraction on the other hand. A moisture content measuring method is thus available, in which the inherent moisture content of the aggregates is determined over their totality and not over part quantities.