目前,大多数小构件厂及工地的搅拌机后台上料还采用一袋水泥、一车砂子、一车石子的投料方法,并使用1000千克磅秤称料。按规范要求,粗细骨料误差不应超过3%,才能保证混凝土的质量。因此,要求上料要车车过磅。怎样才能使每车都过磅呢?具体作法是:在距搅拌机上料斗约2米处,即推料者的必经之路,做两个磅坑,安装两台1000千克的磅秤:一台称砂子,一台称石子。当 At present, most small component factories and construction site mixers also use a bag of cement, a car sand, and a car-stone feeding method in the background and use 1000 kg of pound scales to weigh. According to the specification, the error of coarse aggregate should not exceed 3% to ensure the quality of concrete. Therefore, it is required that the vehicle be loaded with pounds. How can we make each vehicle weigh? The specific approach is: at about 2 meters away from the hopper on the mixer, that is, the only way for the pusher, do two pound pits, install two 1000 kg scales: one said Sand, a stone. when