Retardation of Portland Cement Hydration with Photosynthetic Algal Biomass

2021 ◽  
Author(s):  
Xu Chen ◽  
Mohammad G. Matar ◽  
Danielle N. Beatty ◽  
Wil V. Srubar
Keyword(s):  
Portland Cement ◽  
Algal Biomass ◽  
Cement Hydration ◽  
Portland Cement Hydration

EFFECT OF VISCOSITY MODIFIER ADMIXTURE ON PORTLAND CEMENT HYDRATION

2018 ◽  
Author(s):  
Stefan C. Figueiredo ◽  
Oğuzhan Çopuroğlu ◽  
Erik Schlangen
Keyword(s):  
Portland Cement ◽  
Cement Hydration ◽  
Viscosity Modifier ◽  
Portland Cement Hydration

Studies on the size effects of nano-TiO2 on Portland cement hydration with different water to solid ratios

2020 ◽  
Vol 259 ◽  
pp. 120390
Author(s):  
Jinfeng Sun ◽  
Liang Tian ◽  
Zhuqing Yu ◽  
Yu Zhang ◽  
Chengdong Li ◽  
...  
Keyword(s):  
Portland Cement ◽  
Size Effects ◽  
Cement Hydration ◽  
Nano Tio2 ◽  
Portland Cement Hydration

Influence of Clutch Disc Waste (Grinding Dust) on Portland Cement Hydration

2019 ◽  
Vol 803 ◽  
pp. 284-288
Author(s):  
José da Silva Andrade Neto ◽  
Tiago Assunção Santos ◽  
Raphael Dias Mariano ◽  
Marcio Raymundo Morelli ◽  
Daniel Véras Ribeiro
Keyword(s):  
Portland Cement ◽  
Propagation Velocity ◽  
Pulse Propagation ◽  
Cement Hydration ◽  
Setting Time ◽  
Reference Sample ◽  
Ultrasonic Pulse ◽  
X Ray Diffraction ◽  
Copper Zinc ◽  
Portland Cement Hydration

This paper evaluates the effect of grinding dust (GD), a waste generated in the clutch disc finishing process, on Portland cement hydration. For this, pastes with additions of 5%, 10% and 15% GD, relative to cement weight, were molded and compared with a reference sample. Tests of setting time determination by Vicat needle, calorimetry, monitoring the ultrasonic pulse propagation velocity and mineralogical analysis (X-ray diffraction) in pastes with 1 day of hydration were carried out. It was observed that GD, due to the presence of copper, zinc and phenolic resin in its composition, is responsible for retarding cement hydration and thus increases the setting time and delays the evolution of heat release and pulse propagation velocity. However, the formation of new crystalline phases was not observed.

Kinetic and thermodynamic modeling of Portland cement hydration at low temperatures

2017 ◽  
Vol 71 (4) ◽  
pp. 741-751 ◽  
Author(s):  
Zhuangzhuang Liu ◽  
Aimin Sha ◽  
Liqun Hu ◽  
Yongwei Lu ◽  
Wenxiu Jiao ◽  
...  
Keyword(s):  
Portland Cement ◽  
Thermodynamic Modeling ◽  
Low Temperatures ◽  
Cement Hydration ◽  
Portland Cement Hydration
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