关键词: 磷渣;胶凝材料;力学性能;碱激发;pH值

Abstract: Using phosphorus slag as raw materials, by changing the phosphorus slag grinding time and alkali excitation agent adding amount,under the condition of steam curing,can the phosphorus slag had better mechanical performance was prepared polymer gel materials.The experimental results show that the mechanical properties of the gelation materials prepared by the alkali excitant are the best when it is 4.2%,and the strength can reach 50 MPa.Particle size and SEM analysis show, the material strength increases with the improvement of the fineness of phosphorus slag powder.System of glass electrode method and XRD analysis show that with the increase of the alkaline activity of phosphorus slag powder increasing activity and hydration reaction more fully,the amorphous hydrated into stable hydrated calcium silicate, and hydrated alkali aluminosilicate salt, thus forming excellent mechanical properties of polyethylene composite cementitious material.

Key words: phosphorus slag;composite cementitious material;performance;alkali-activated;pH value