Preparation of the supplementary cementitious material of ferronickel submerged arc furnace slag and its properties
Preparation of the supplementary cementitious material of ferronickel submerged arc furnace slag and its properties
复制标题
镍铁矿热炉渣辅助胶凝材料的制备及其性能
DOI：
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发表时间：
2010
影响因子：
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通讯作者：
Wan, Chao-Jun
中科院分区：
文献类型：
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作者：
Meng, Li;Wan, Chao-Jun
镍铁矿热炉渣的大量积压，严重影响了镍工业的可持续发展。通过粉磨，将镍铁矿热炉渣机械活化，作为辅助胶凝材料，开辟了镍铁矿热炉渣的综合利用途径。用处理后的镍铁矿热炉渣代替质量分数为10%~ 40%的水泥，随着掺量的增加，水泥净浆标准稠度需水量降低，砂浆流动度增大，抗压强度降低，水泥净浆强度降低。当用量大于10%时，弯曲强度先增加后降低，试验结果表明，镍铁矿热炉渣可以作为复合材料的辅助材料具有提高抗折强度和增塑减水的作用。
The ferronickel submerged arc furnace slags are stored up more and more,as a result,seriously influenced the sustainable development of the nickel industry.By grinding,the ferronickel submerged arc furnace slag is mechanically activated,then can be used as supplementary cementitious material,thus a comprehensive utilization way of ferronickel submerged arc furnace slag is developed.Using such processed slag to replace cement from 10% to 40% in mass,with the increase of replacing dosage,the water demand of standard consistency of cement paste is lowered,the fluidity of mortar is raised;the compressive strength of mortar is decreased;the flexural strength is increased followed by a decrease after the dosage is above 10%,the ratio of flexural strength to compressive strength is increased.The experimental results indicate that the ferronickel submerged arc furnace slag can be used as supplementary cementitious material and has an increase of flexural strength and effect of plasticizing and water reducing.