Hydration and Expansion Properties of Novel Concrete Expansive Agent

Pei Wei Gao; Fei Geng; Xiao Lin Lu

doi:10.4028/www.scientific.net/KEM.405-406.267

Paper Titles

Early-Age Heat Evolution and Pore Structure of Portland Cement Blended with Blast Furnace Slag, Fly Ash or Limestone Powder
p.242

Experimental Studies on the Volume Change of the Super High Strength and High Performance Concrete
p.249

Research on the Volume Stability of Ternary Cementitious Systems Incorporating Fly Ash and Slag Powder
p.256

Effects of Limestone Powder in Manufactured Fine Aggregate on Early Hydration Process and Types of Cement Hydrates
p.262

Hydration and Expansion Properties of Novel Concrete Expansive Agent
p.267

Evaluation of Concrete Permeability by Monitoring Alkali Saturated Conductivity of Concrete Incorporating Mineral Admixtures
p.272

Effect of Different Mineral Admixtures on Sulfate Attack to Mortars
p.278

Effect of Aggregate Volume Fraction on the Charge Passed of Mortar and Concrete
p.283

Investigation of the Ability of Alkali Binding by C-S-H and C-A-S-H Gels
p.289

HomeKey Engineering MaterialsKey Engineering Materials Vols. 405-406Hydration and Expansion Properties of Novel...

Hydration and Expansion Properties of Novel Concrete Expansive Agent

Abstract:

The hydration and expansive characterization of a novel concrete expansive agent were investigated in this paper. The results showed that the hydration activities of the novel agent depended on the calcining temperature, particle size and curing temperature. When the expansive agent was mixed in concrete, the early shrinkage of concrete was reduced. If the content and distribution of the expansive agent in concrete is appropriate and uniform, the expansion rate of concrete may be controlled, and the shrinkage of concrete could be compensated effectively by the gentle volume expansion.

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Periodical:

Key Engineering Materials (Volumes 405-406)

Pages:

267-271

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.405-406.267

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Online since:

January 2009

Authors:

Pei Wei Gao, Fei Geng, Xiao Lin Lu

Keywords:

Concrete, Expansion, Expansive Agent, Hydration, Magnesium Oxide

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