热焖钢渣对水泥基本性能的影响

Effect of Hot-sealed Steel Slag on the Basic Performance of Cement

钢渣是炼钢过程中产生的废渣,其综合利用率低。就热焖钢渣对三三、红狮两种水泥的流动度、强度等的影响进行试验研究。研究结果表明:钢渣对聚羧酸减水剂相容性良好,热焖钢渣掺量在0~30%范围内对水泥浆的流动性影响很小;经过热焖后的钢渣由于其C_3S、C_2S含量少,参与水化反应少,对水泥胶砂强度形成影响甚微,在水泥石体系中,主要起填充作用。

Steel slag is the waste slag of steel production,and its comprehensive utilization rate is low.Hot-sealed steel slag effects on fluidity and strength of Sansan and Hongshi cement have been studied.The test results show that the compatibility of the steel slag with polycarboxylate is good.Within the 0-30%range of hot-sealed steel slag,the influence on cement paste fluidity is little.Because of low C 3S and C 2S content in steel slag after hot-sealing,steel slag hardly participates in hydration reaction.It has little effect on the strength of cement paste,and its main function is to be used as filling in cement stone system.