硅酸盐通报2011，Vol.30Issue(5)：1118-1121,4.
锆磷酸盐陶瓷材料的研究进展
Research Progress of Zirconate-phosphate Ceramics
摘要
Abstract
Shrinkage reducing admixture ( SRA) is a novel chemical admixture which can significantly reduce the shrinkage of cement based materials. Most of researches mainly focused on the effect of SRA on macroscopic properties of cement based materials. There are,however, few reports on the adsorption of SRA on interface of cementitious materials-water. Thus, the existential state of SRA in cementitious materials is not well understood. In this study, the adsorptions of two SRA products on solid particle surface of cement, blast furnace slag and fly ash were investigated, comparing with those of two polycarboxylate ( PC) superplasticizers under the same testing conditions. The results shown a significant difference of adsorption between SRA and PC on solid particles, and the adsorption of SRA was eight times as small as those of PC, which indicated that majority of SRA was dissolved into cement pore solution, rather than adsorbed onto the surface of solid particles. The IR spectrograms revealed that the main functional groups of SRA were as same as PC. Therefore,it is believed that there is no necessary connection between the adsorption and types of SRA 's and PC 's functional group, the difference of adsorption possibly resulted from the different molecular or chain structures of SRA and PC.关键词
锆磷酸盐陶瓷/晶体结构/热膨胀性/抗热震性/制备工艺Key words
adsorption/ shrinkage reducing admixture/ superplasticizer/ functional group/ molecular structure分类
化学化工引用本文复制引用
李文虎..锆磷酸盐陶瓷材料的研究进展[J].硅酸盐通报,2011,30(5):1118-1121,4.基金项目
陕西省教育厅专项科研计划项目(11JK0844) （11JK0844）
