The Structure of Calcium Silicate Hydrate: NMR and Raman Spectroscopic Results

1998 ◽  
pp. 143-158 ◽  
Author(s):  
Xiandong Cong ◽  
R. James Kirkpatrick ◽  
Jeffrey L. Yarger ◽  
Paul F. McMillan
Keyword(s):  
Calcium Silicate ◽  
Calcium Silicate Hydrate ◽  
Raman Spectroscopic

scholarly journals Influence of CNTs, ZnO, Gd2O3 and SiO2 on Calcium Silicate Hydrate: A Raman spectroscopic study

2021 ◽  
Author(s):  
Muhammad Azeem
Keyword(s):  
Metal Oxides ◽  
Calcium Silicate ◽  
Calcium Silicate Hydrate ◽  
Weight Percent ◽  
The Other ◽  
Raman Spectroscopic ◽  
Raman Spectroscopic Study ◽  
The Matrix ◽  
Vibrational Bands ◽  
Strength And Durability

Abstract Raman spectra are collated from the cement paste matrices of CNTs, ZnO, Gd2O3, and SiO2. The spectra show that CNTs do not take part in hydration process and therefore concentration of calcium silicate hydrate (CSH) is unchanged in CNT-OPC matrix. The metal oxides, on the other hand, have shown significant effects on the CSH concentration. The CSH concentration increases with the increase of ZnO weight percent in the matrix whereas spectra collected from Gd2O3 matrix shows the strongest CSH vibrational bands. Moreover, vibrational bands of CaCO3 also become weak in the matrices with Gd2O3. The addition of SiO2 however had opposite effects that is by increasing the weight percent of SiO2 in the matrix, the CSH concentration is decreased. Since CSH acts a glue in a binder, the study shows that its concentration can be controlled by adding foreign elements. Such binders are expected to show improved strength and durability.

Multiple ions transport and interaction in calcium silicate hydrate gel nanopores: Effects of saturation and tortuosity

2021 ◽  
Vol 283 ◽  
pp. 122638
Author(s):  
Zhiyong Liu ◽  
Yuncheng Wang ◽  
Dong Xu ◽  
Chuyue Zang ◽  
Yunsheng Zhang ◽  
...  
Keyword(s):  
Calcium Silicate ◽  
Calcium Silicate Hydrate ◽  
Ions Transport

Experimental and theoretical evidence of overcharging of calcium silicate hydrate

2007 ◽  
Vol 309 (2) ◽  
pp. 303-307 ◽  
Author(s):  
Christophe Labbez ◽  
André Nonat ◽  
Isabelle Pochard ◽  
Bo Jönsson
Keyword(s):  
Calcium Silicate ◽  
Calcium Silicate Hydrate ◽  
Theoretical Evidence

scholarly journals Autoclave-free ultra-early strength concrete preparation using an early strength agent and microstructure properties

RSC Advances ◽  
2021 ◽  
Vol 11 (28) ◽  
pp. 17369-17376
Author(s):  
Daosheng Sun ◽  
Ziwen Wang ◽  
Rui Ma ◽  
Aiguo Wang ◽  
Gaozhan Zhang
Keyword(s):  
Compressive Strength ◽  
Calcium Silicate ◽  
Calcium Silicate Hydrate ◽  
Strength Concrete ◽  
Compressive Strength Of Concrete ◽  
Early Strength

In this study, nano calcium silicate hydrate was used as an early strength agent to promote the compressive strength of concrete at 1 day.

Sign in / Sign up

Export Citation Format

Share Document