The results show that the process of concrete sawing with diamond tools is that the impact of diamond sawblade induces the rupture and break of concrete surface layer during high speed sawing ; cement and carpolite become micro chips by the cutting of diamond grits ; steel fiber and steel wire are broken by plastic deformation or pulled out by forces 结果表明:金刚石锯片锯切混凝土的过程表现为高速据切过程中金刚石据片的冲击引起混凝土表层断裂破碎,水泥石子等在切削区内层受到金刚石磨粒的微切削作用形成粉屑,以及钢纤维和钢丝发生金属塑性变形断裂或被拔拉而断裂的过程。