Study on the Hydration Kinetics of Portland Cement

Wei Wang; Wu Yao; Yong Qi Wei

doi:10.4028/www.scientific.net/KEM.539.30

Paper Titles

The Application of Freezing-Melting Hysteresis in Hardened White Cement Paste
p.10

An Experimental Study of Water in Pore System of Hardened Cement Paste by Magnetic Resonance
p.14

Quantitative Characterization of Hydration of Cement Pastes by Rietveld Phase Analysis and Thermoanalysis
p.19

Kinetic Study of Portland Cement Hydration with Ground Penetrating Radar
p.25

Study on the Hydration Kinetics of Portland Cement
p.30

Relationship between Internal Relative Humidity and Autogenous Shrinkage of Cement Paste with Supplementary Cementitious Materials (SCM)
p.35

A Testing Device for Humidity-Control Performance of Pervious Concrete
p.40

An Evaluation of Shrinkage Model Based upon Microstructure of Blended Cement Pastes
p.44

Early-Age Free Shrinkage of Mortars with Different Dosages of EVA Redispersible Powder
p.49

HomeKey Engineering MaterialsKey Engineering Materials Vol. 539Study on the Hydration Kinetics of Portland Cement

Study on the Hydration Kinetics of Portland Cement

Abstract:

A kinetic model originally developed by Tomosawa is analyzed for the hydration of Portland cement. The complicated kinetic equation of Tomosawa model is transformed into three simple equations of simplified model which represent mass transfer, phase-boundary reaction and diffusion process at different stage, respectively. Based on the isothermal calorimetry and the simplified model, the relationship between the degree of reaction and reaction rate is discussed. The derived result could reflect the development of degree of reaction and reaction rate during the cement hydration. The calculation results of simplified model are compared well with the experimental results. Studying the connection among the three processes is helpful to understanding the complicated hydration mechanism of Portland cement.

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Periodical:

Key Engineering Materials (Volume 539)

Pages:

30-34

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.539.30

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Online since:

January 2013

Authors:

Wei Wang, Wu Yao, Yong Qi Wei

Keywords:

Degree of Hydration, Kinetic, Model, Reaction Ratio

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