用矿渣微粉配制高掺量早强矿渣水泥的研究

Study on the preparation of high early strength slag Portland cement with high dosage of finely ground slag

通过正交试验研究了不同细度、掺量的矿渣微粉和熟料对矿渣水泥性能的影响。试验发现，影响矿渣水泥 3d、 28d强度的主次因素不同， 3d强度主要受矿渣细度的影响， 28d强度则主要受矿渣掺量影响。采用分别粉磨后混合的生产工艺，用一定细度的矿渣微粉可以生产出掺量较高、早强性能好的矿渣水泥。

Effect of the fineness and dosage of finely ground slag and clinker on the performance of cement was studied through cross experiment. It was found that different factors exerted varying effect on the 3d and 28d strength of the slag cement, the 3d strength was mainly affected by the fineness of slag, while the 28d strength was dominated by the content of slag addition. The adoption of mixing after separate grinding process and the addition of finely ground slag with certain fineness can ensure the production of high early strength slag Portland cement with high dosage of finely ground slag.