Effects of wet-grinded superfine waste glass on the fresh properties and reaction characteristic of cement pastes

2020 ◽  
Vol 247 ◽  
pp. 118593
Author(s):  
Yingbin Wang ◽  
Jiawei Li ◽  
Xingyang He ◽  
Zhengqi Zheng ◽  
Ying Su ◽  
...  
Keyword(s):  
Waste Glass ◽  
Fresh Properties ◽  
Cement Pastes ◽  
Reaction Characteristic

scholarly journals Effect of nano-silica on rheology and fresh properties of cement pastes and mortars

2009 ◽  
Vol 23 (7) ◽  
pp. 2487-2491 ◽  
Author(s):  
Luciano Senff ◽  
João A. Labrincha ◽  
Victor M. Ferreira ◽  
Dachamir Hotza ◽  
Wellington L. Repette
Keyword(s):  
Fresh Properties ◽  
Nano Silica ◽  
Cement Pastes

Effect of Nano-Silica Particles on the Fresh Properties of UHPC

2014 ◽  
Vol 629-630 ◽  
pp. 91-95
Author(s):  
Qian Qian Zhang ◽  
Jian Zhong Liu ◽  
Wei Lin
Keyword(s):  
Mechanical Properties ◽  
Cement Hydration ◽  
Physical And Mechanical Properties ◽  
Heat Evolution ◽  
Fresh Properties ◽  
Nano Silica ◽  
Cement Pastes ◽  
Binder Ratio ◽  
Nanosilica Particles ◽  
Water Binder Ratio

Nanotechnology is being used in UHPC for achieving more dense structural packing and better physical and mechanical properties. In this paper, nanosilica particles (0-1wt %) by cement were incorporated in cement pastes and mortars with water-binder ratio of 0.2, and their effect on fresh properties was addressed. The fresh properties of mixtures were investigated by spread, rheology and cohesiveness. In addition, effect of nanosilica on cement hydration was also investigated. The results show that significant increase of yield stress, viscosity and cohesiveness is observed with nanosilica above 0.005 wt% by cement, but nanosilica with content below 0.005% presents an improvement of workability especially with content of 0.002%. Moreover, the addition of nanosilica in cement pastes obviously accelerates the early cement hydration rate, but does not increase the cumulative heat evolution.

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