When the concrete batch plant work of mixing the feeding order is regular, generally put the stone first, the following will be cement, and finally followed by sand and water, why this feeding it? The main purpose is to ensure that the stones, cement and other mixing evenly , To prevent the cement with other thickness of the aggregate wrapped together into the mixer, with water quickly after the formation of small cement particles, the smaller the water-cement ratio of the agglomeration of the more serious.

Also due to small cement aggregates attached to the coarse aggregate, the larger the coarse aggregate size, the smaller the smaller the cement particles is not broken.

And in the mixing process, due to the role of friction and impact, in the direction of the aggregate movement of small cement particles are effectively protected, the particle size is greater than the small cement aggregates several times or ten times the coarse aggregate into small cement aggregates The protection barrier. So that part of the cement particles can not be broken after the end of mixing, to be hardened after the cement block filled with aggregate gap, resulting in lower strength of concrete, and even cause quality accidents.

Therefore, the feeding order of the concrete batch plant is regular.