The micromechanics model analysis of the viscosity regulation of ultra-high strength concrete with low viscosity

3rd International Conference on Advanced Materials Research and Applications

Zhu, M.^1 ; Wang, F.G.^2 ; Wang, F.Z.^1 ; Liu, Y.P.^1

State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, HUBEI

430070, China^1

Jiangsu Subote New Material Co. Ltd., Nanjing, JIANGSU

211013, China^2

关键词: Binder content;    Different binders;    Different class;    Micro mechanics model;    Objective reality;    Plastic viscosity;    Ultra high strength concretes;    Water binder ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/170/1/012033/pdf
DOI  :  10.1088/1757-899X/170/1/012033

来源: IOP

【 摘 要 】

The plastic viscosity of mortar and concrete with different binder content, sand ratio, water-binder ratio, microbead dosage and different class and dosage of fly ash were tested and calculated according tomicromechanics model proposed by A. Ghanbari and B.L. Karihaloo, The correlations between these parameters and fresh concrete workability were also investigated, which showed i. high consistence with the objective reality. When binder content, microbead dosage, fly ash dosage or the water-binder ratio was increased or sand ratio was reduced, the fresh concrete viscosity would decrease correspondingly. However their effects were not that same. The relationships between T50 a, V-funnel and inverted slump time with fresh concrete viscosity were established, respectively.