Research on Hydration Reaction of Slag-Cement Material System

Qing Wang; Zhao Yang Ding; Ning Wang; Wei Jiang; Tao Jun Wu

doi:10.4028/www.scientific.net/KEM.629-630.376

Paper Titles

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Effect of Fineness on the Properties of Cement Paste
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Effects of Fly Ash and Granular Blast-Furnace Slag on Development Rate of Strength of Concrete
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Research on Hydration Reaction of Slag-Cement Material System
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Mix Optimization for Precast Concrete Members in Building Industrialization
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Multifunctional Use of Self-Compacting Concrete as A Fundamental Material in Dam Construction: Upper Gotvand Dam
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Effect of Slag on the Rheological and Strength Properties of Self-Compacting Concrete
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Evaluation and Application of Recipe for Binding Materials in Self-Compacting Concrete
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 629-630Research on Hydration Reaction of Slag-Cement...

Research on Hydration Reaction of Slag-Cement Material System

Abstract:

The influence of slag dosage on the hydration kinetics of slag-cement composite cementing material system is studied. The results show that the exothermic rate of hydration decreases as the slag dosage increases or the temperature of hydration decreases. The non-evaporable water content increases at first and then decreases with the increasing of slag dosage, and reaches the maximum as slag dosage is 30%. The compressive strength decreases as slag dosage increases, the increasing rate of which is evidently before 28 days, after that it is flat or become slow. It can be seen from SEM (scanning electron microscope), in the system of slag dosage below 30%, the gel-like structures bind with crystals which make the system very compact.

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Periodical:

Key Engineering Materials (Volumes 629-630)

Pages:

376-381

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.629-630.376

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Online since:

October 2014

Authors:

Qing Wang, Zhao Yang Ding*, Ning Wang, Wei Jiang, Tao Jun Wu

Keywords:

Composite Cementing Material, Compressive Strength, Exothermic Rate of Hydration, Non-Evaporable Water Content, Portland Cement

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