预填集料砼预填集料砼与普通砼的不同之处，就在于前者的粗集料百分率较高。因为粗集料是直接填在模板中的，所以集料之间是点对点的接触，而不是包含在流动性的塑性拌合物中。因此，预填集料砼的性能更加取决于粗集料，其弹性模量略高于普通砼，而干缩率则少于普通硅的一... The difference between pre-filled aggregates and pre-filled aggregates is that the former has a higher percentage of coarse aggregates. Because the coarse aggregate is directly filled in the template, the aggregates are in point-to-point contact, not in the fluidity of the plastic mixture. Therefore, the performance of pre-filled aggregates is more dependent on coarse aggregates, the modulus of elasticity is slightly higher than that of ordinary crucibles, and the shrinkage rate is less than that of ordinary silicon...