造壳混凝土是一种新的投料工艺,即在砂颗粒周围包裹着有一定强度的水泥浆壳,从而增强颗粒间的相互粘结力。使水泥粒子在拌和物中由原来不太均匀分散状态有所改善,更充分发挥水泥的活性,减 Shelling concrete is a new feeding process, that is, a certain strength cement slurry shell is wrapped around sand particles, thereby enhancing the mutual adhesion between particles. In this way, the cement particles can be improved from the original state of less uniform dispersion, and the activity of cement can be fully utilized.