| 摘要 |
PROBLEM TO BE SOLVED: To provide a weighing device of a concrete material where a concrete mixer can be efficiently operated by charging the premeasured weight of cement and the aggregates of gravel and sand into the concrete mixer using at a use site of ready-mixed concrete and the deterioration of a working environment can be prevented by efficiently suppressing the scattering of the cement when weighing and charging into the concrete mixer.SOLUTION: A weighing device of a concrete material comprises: a truck 2; a belt conveyor 4 installed on a loading platform 3 of the truck so that a discharge side is positioned at the rear side of the loading platform 3; a first weighing hopper 10 to supply an aggregate 5 of gravel at the upstream side of the belt conveyor; a second weighing hopper 11 to supply cement 6 on the aggregate of the gravel supplied on the belt conveyor; and a third weighing hopper 12 to supply an aggregate 7 of sand so as to cover the cement supplied on the aggregate of the gravel on the belt conveyor. |
