用分形理论评价超塑化剂对水泥絮凝结构影响  

Research on the Fractal Characteristics of Flocculated Structure in Fresh Cement Paste with Superplasticizer

作　　者：王立久[1] 谭晓倩[1] 

机构地区：[1]大连理工大学土木水利学院,大连116024

出　　处：《硅酸盐通报》2010年第2期473-476,485,共5页Bulletin of the Chinese Ceramic Society

基　　金："十一五"国家科技支撑计划项目(2006BAJ04A04)

摘　　要：用光学显微镜对不同超塑化剂掺量情况下的水泥絮凝结构进行了研究,并结合分形理论对各絮凝形态进行定量评价。结果表明:絮凝颗粒为组成水泥浆体的基本单元;超塑化剂的加入可以有效破坏水泥絮凝结构;在最佳掺量范围内,随掺量增加,水泥絮凝结构的平面分形维数增大。The fractal characteristics of flocculated structure in fresh cement paste with different dosage of superplasticizer were investigated. The results reveal that cement paste is completely composed of flocculated structure which can be dispersed by adding superplastieizer. Moreover, within the range of optimal value, the higher the dosage of the superplasticizer, the more fractal dimension of the flocculated structure is observed.

关 键 词：水泥 絮凝结构 分形维数 超塑化剂 

分 类 号：TQ172[化学工程—水泥工业]