镍石膏-钛矿渣复合胶凝材料的试验研究

以未经改性的镍石膏、钛矿渣和P·O42.5水泥为主要原料制备镍石膏-钛矿渣复合胶凝材料,通过物理力学性能及微观性能测试,分别研究了生石灰、矿物掺合料、硫铝酸盐水泥掺量和养护制度对镍石膏-钛矿渣复合胶凝材料物理力学性能的影响。结果表明,以生石灰作为碱性激发剂,掺量在6%时效果最好;加入4%偏高岭土和2%硫铝酸盐水泥后,基体的凝结时间大大缩短,早期强度显著增加,后期强度也有所增长;养护制度对基体3d和7d强度影响较大,28 d强度保持一致。

Study on Nickel Gypsum-Titanium Slag Cementitious Materials

Nickel gypsum-titanium slag cementitious materials was prepared with original untreated nickel gypsum,titanium slag and p·O42.5 cement.The effect of the nickel gypsum-titanium slag cementing materials of the quick lime content,mineral admixtures content,sulphoaluminate cement content and curing system were investigated by physical and mechanical properties and microscopic performance testing.The result show that,with lime as alkali activator,the best content is 6％.After adding 4％ metakaolin and 2％ sulphoaluminate cement,the setting time of the matrix was greatly shortened,the early strength of the matrix was increased significantly,and the later strength was increased.Curing system had a greater influence on the 3 d and 7 d strength,and 28 d strength were consistent.