Hydration and Microstructure of Nano Modified Cement Paste

Gintautas Skripkiūnas; Ekaterina Karpova; Rostislav Drochytka; Jakub Hodul

doi:10.4028/www.scientific.net/SSP.321.9

Paper Titles

Preface

Study of Development of Hydrating Temperatures and Reduction of Volume Changes in Concretes
p.3

Hydration and Microstructure of Nano Modified Cement Paste
p.9

Influence of Cement Type on Stability of Concrete Mixture
p.15

Changes in Crystallite Size of Tricalcium Silicate during the Laboratory Grinding
p.23

Using of the Ultrasonic Method for Alkali-Silica Reaction Detection in the Cement Mortar
p.29

The Development of New Chemically Resistant Material for the Invert Grouting
p.37

Effect of Limestone Origin on the CaCO₃ Decomposition Process and Subsequent Crystallization Process of CaO
p.45

The Influence of Activated Dispersed Additives on Electrical Conductivity of Anhydrite Compositions
p.51

HomeSolid State PhenomenaSolid State Phenomena Vol. 321Hydration and Microstructure of Nano Modified...

Hydration and Microstructure of Nano Modified Cement Paste

Abstract:

Hydration of cement systems modified by nano additives requires the understanding of its mechanisms. The present research is focused on the investigation of hydration processes in cement pastes modified by multi-walled carbon nanotubes (MWCNTs) suspension. The ultrasonication method was used for homogenization of MWCNTs in the volume of an aqueous suspension. The hydration of cement pastes was assessed by the calorimetry test. The prolongation of cement hydration in case of modification by MWCNT suspension was observed. The microstructure observation by scanning electron microscopy (SEM) was performed for identification of MWCNT's dispergation in hardened cement pastes and for the observation of cement hydration products. The compressive and flexural strength were tested to evaluate the effect of MWCNT on mechanical properties of hardened cement paste.

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Periodical:

Solid State Phenomena (Volume 321)

Pages:

9-14

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.321.9

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Online since:

July 2021

Authors:

Gintautas Skripkiūnas, Ekaterina Karpova*, Rostislav Drochytka, Jakub Hodul

Keywords:

Carbon Nanotubes, Cement Hydration, Hydration Products, Suspension

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