scholarly journals Effect of Temperature on Rheological property of Fresh Cement Paste in High Flowing Concrete.

1996 ◽  
Vol 45 (2) ◽  
pp. 230-234 ◽  
Author(s):  
Tetsurou KASAI
Keyword(s):  
Rheological Property ◽  
Cement Paste ◽  
Effect Of Temperature

scholarly journals INFLUENCE OF SILICA COLLOID ON RHEOLOGY OF CEMENT PASTE WITH SUPERPLASTICIZER

2017 ◽  
Vol 25 (1) ◽  
pp. 73-80
Author(s):  
T.H. Chuong ◽  
P.V. Nga
Keyword(s):  
Experimental Data ◽  
Rheological Property ◽  
Silica Fume ◽  
Cement Paste ◽  
Rheological Behavior ◽  
Concrete Mixture ◽  
Silica Colloid ◽  
Binder Ratio ◽  
High Silica ◽  
Water Binder Ratio

Information of rheological behavior of binder paste is important for proportioning high slump concrete mixture at low water to cement ratios. This paper presents experimental data on the rheological property of silica colloid incorporated binder paste using naphthalene based and polycarboxylate based superplasticizer, compared to that of silica fume incorporated binder paste. Experimental data showed that silica colloid incorporated binder is compatible to tested superplasticizers in the all investigated range of silica colloid content, whereas the pastes incorporated with high silica fume content (over 10%) indicated incompatibility, especially to naphthalene based superplasticizer. There was also found out saturated content of superplasticizer corresponding to every kind of binder and water-binder ratio, with and without set retarding admixture. 

Preparation of polycarboxylate-based superplasticizer and its effects on zeta potential and rheological property of cement paste

2015 ◽  
Vol 30 (5) ◽  
pp. 1008-1012 ◽  
Author(s):  
Ming Liu ◽  
Jiaheng Lei ◽  
Yao Bi ◽  
Xiaodi Du ◽  
Qinglin Zhao ◽  
...  
Keyword(s):  
Zeta Potential ◽  
Rheological Property ◽  
Cement Paste

The use of thermal analysis in assessing the effect of temperature on a cement paste

2005 ◽  
Vol 35 (3) ◽  
pp. 609-613 ◽  
Author(s):  
Lucia Alarcon-Ruiz ◽  
Gerard Platret ◽  
Etienne Massieu ◽  
Alain Ehrlacher
Keyword(s):  
Thermal Analysis ◽  
Cement Paste ◽  
Effect Of Temperature

scholarly journals Setting Mechanism of a CDHA Forming α-TCP Cement Modified with Sodium Phytate for Improved Injectability

Materials ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2098 ◽  
Author(s):  
Jan Weichhold ◽  
Uwe Gbureck ◽  
Friedlinde Goetz-Neunhoeffer ◽  
Katrin Hurle
Keyword(s):  
Cement Paste ◽  
Weight Ratio ◽  
Octacalcium Phosphate ◽  
Effect Of Temperature ◽  
Sodium Phytate ◽  
Setting Reaction ◽  
Fine Grained ◽  
Setting Mechanism ◽  
Paste Viscosity ◽  
Powder Content

A calcium deficient hydroxyapatite (CDHA) forming cement with a bimodal grain size distribution, composed of α-TCP and fine grained CDHA at a weight ratio of 9:1, was modified by the addition of sodium phytate (IP6) in variable amounts ranging from 0.25 to 2 wt.%, related to the powder content. The injectability of the cement paste was drastically increased by the IP6 addition, independent of the amount of added IP6. Additionally, the cement paste viscosity during the first minutes decreased. These effects could be clearly related to a slightly more negative zeta potential. Furthermore, IP6 was shown to strongly retard the setting reaction, as can be seen both in the calorimetry and X-ray diffraction measurements. In addition, octacalcium phosphate (OCP) was identified as a further setting product. All measurements were performed at 23 °C and 37 °C to assess the effect of temperature on the setting reaction for both clinical handling by the surgeon and the final hardening in the bone defect.

Effect of Hydration Temperature on Cement Paste Structure

1986 ◽  
Vol 85 ◽  
Author(s):  
I. Odler ◽  
S. Abdul-Maula ◽  
Lu Zhongya
Keyword(s):  
Phase Composition ◽  
Pore Structure ◽  
Cement Paste ◽  
Elevated Temperatures ◽  
Effect Of Temperature ◽  
Structure And Properties ◽  
Bond Properties ◽  
Portland Cements

ABSTRACTThe effect of temperature on the progress of hydration and cement paste structure and properties was studied using four laboratory-synthesized portland cements, hydrated at temperatures between 5 and 95°C for up to 90 days. In addition to an accelerated progress of hydration, elevated temperatures altered the phase composition and pore structure of the resulting hydrated material. Below 75°C the effect of temperature on the intrinsic bond properties of the hydrates formed remained negligible.

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