矿渣微粉颗粒分布对胶凝材料性能影响的灰色系统

Gray System Study on the Influence of Particle Size Distribution of Slag Powder on Performance of Cementitious Materials

应用灰色控制系统理论研究了矿渣微粉颗粒分布对胶凝材料性能的影响 .以30 % (质量分数 )比例的矿渣微粉掺入水泥中 ,测其胶砂强度和胶凝材料流动度 .研究结果表明 ,矿渣微粉中 10～ 2 0 μm颗粒对 7d和 2 8d抗压强度具有最大影响度 ,2 0～ 30 μm颗粒则对 7d和 2 8d抗折强度具有最大影响度 .而 10～ 2 0

Grey control system theory was applied to appraise the effect of the particle size distribution of slag powder on cementitious's performance. The strength and fluidity of the cementitous morter made of 30%(mass fraction) slag powder into cement were tested. The experimental results show that the particle with fraction from 10～20 μm is the key factor to the compressive strength of 7 d and 28 d, and that 20～30 μm is the key factor to the bending strength of 7 d and 28 d. And the fraction of 10～20 μm particle has a maximum effect on fluidity of cementitious materials.