高钛渣用于水泥混合材的性能研究  

Research on Performance of High-titanium Slag for Cement Admixture

作　　者：张振明[1] 翁庆强[2] 高艳霞[1] 费爱艳 伊海赫 李东旭[1] 

机构地区：[1]南京工业大学材料科学与工程学院,材料化学工程国家重点实验室,南京210009 [2]四川省川威钒钛冶金科技开发有限公司,成都610095

出　　处：《硅酸盐通报》2014年第8期1874-1879,共6页Bulletin of the Chinese Ceramic Society

基　　金：国家重点基础发展计划(973计划)项目(2009C13623104);提高水泥用高钛型高炉渣活性技术研究项目(0005102013007)

摘　　要：本文分析了高钛渣的矿物组成、活性系数,探讨了高钛渣的粉磨细度对水泥的凝结时间、标准稠度用水量、安定性等影响,而且分析了不同助磨剂的作用效果,以及高钛渣对水泥强度、水化产物的影响,得出高钛渣用于水泥混合材的实验基础。采用单掺与复掺的方式,比较得出可用于生产复合硅酸盐水泥和普通硅酸盐水泥的不同掺量和配比。结果表明:高钛渣不会对水泥的水化产物产生不利影响,粉磨较细的高钛渣更有利于水泥水化产物产生的包裹效应,使结构更加紧密,从而增加水泥强度;使用助磨剂的条件下,掺入30%的高钛渣,并与粉煤灰及高炉渣复掺,混合材总掺量达到40%,可满足P·C32.5R级水泥生产;使用助磨剂的条件下,掺入10%的高钛渣,并与粉煤灰及高炉渣复掺,混合材总掺量达到20%,可满足P·O42.5R级水泥生产。This paper analyzes the high-titanium slag mineral composition, activity coefficient, and discusses the grinding fineness of high-titanium slag affects the cement setting time, standard consistency water, stability, etc. , also analyzes the effect of different grinding aids, as well as the impact of high- titanium slag on cement strength and hydration products, obtains the experimental basis for high-titanium slag used as cement admixture. By the way of single-doped and composite-doped, it obtains the different content and ratios of composite Portland cement and Ordinary Portland cement by comparing. The results show that high-titanium slag will not adversely affect the hydration products of cement, and grinding smaller high-titanium slag is more conducive to parcels effect that the cement hydration products produced, making the structure more closely, thereby increasing the strength of cement; under the condition of effective grinding aid, it is incorporated 30% of high-tltanium slag, also mixed with fly ash and blast furnace slag, admixtures up to 40%, which can meet P· C 32. 5R cement production level; under the condition of effective grinding aid, it is incorporated 10% of high-titanium slag, also mixed with fly ash and blast furnace slag, admixtures up to 20%, which can meet P · O 42.5R cement production level.

关 键 词：高钛渣 水泥混合材 助磨剂 水化产物 

分 类 号：TQ172[化学工程—水泥工业]