玻璃粉粒度对复合胶凝材料性能的影响

用激光粒度分析仪测定不同细度的玻璃粉粒度分布，以灰色关联方法( GIA)和扫描电子显微镜( SEM)研究了玻璃粉粒度对复合胶凝材料性能的影响。研究结果表明，玻璃粉中10μm以下的颗粒关联性均为正，说明这些颗粒对复合胶凝材料强度发展有积极贡献，其中以5~10μm的关联度为最大；而?45μm的颗粒呈负关联，其火山灰活性没有得到充分发挥；玻璃粉经适当物理磨细(35 min)后，能更有效地分散到复合胶凝材料的孔隙中，使复合胶凝材料的结构更加密实，从而提高了复合胶凝材料的抗压强度。

Influence of Glass Powder Particle Size on Properties of Complex Binder

Glass powder with different particle size distributions were tested by laser particle analysis. Influence of the particle size distribution of glass powder on properties of complex binder were investigated by using GIA and SEM. The result show that the particles ranging?10 μm has the positive effect on the strength development of complex binder, the particles ranging from 5 to 10 μm has the maximum positive degree of grey incidence. Those with size lager than 45 μm correlated with the properties of complex binder negatively, contributed less to the strength development of complex binder. Glass powder can be more dispersed to porosity of complex binder when glass powder were prepared by physical milling ( 35 min) , the structure of complex binder is more dense, and the compressive strength of complex binder is improved.