Performances Study and Accelerating Mechanism Analysis of New-Type Alkali-Free Efficient Liquid Setting Accelerator

Tong Wei Lu; Fei Xiao; Lei Guo; Gui Bo Gao

doi:10.4028/www.scientific.net/AMM.584-586.1652

Paper Titles

Experimental Study on Impact Resistance of PVA Fiber Reinforced Cement-Based Composite
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Discussions on Materials Selection and Design of Colored Hot-Mix Asphalt Mixture
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Dynamic Mechanical Analysis of CRTS II Cement Asphalt Mortar
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Preparation of Novel Intermediate Material for Azobenzene Liquid Crystal
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 584-586Performances Study and Accelerating Mechanism...

Performances Study and Accelerating Mechanism Analysis of New-Type Alkali-Free Efficient Liquid Setting Accelerator

Abstract:

This paper introduces a new-type alkali-free and chlorine-free high performance liquid accelerated admixture. The accelerated agent is mainly composed of the following components: fluoride magnesium aluminum silicate is main accelerator, alcohol amine polymer is activator, and amide polymer is stabilizer. When dosage of the admixture is greater than 4%, the cement initial setting time is less than 5 min, the final setting time is less than 10 min, and the 28 day compressive strength ratio of mortar is more than 100%. The mechanism is the accelerating of agent on hydration of C₃A and C₃S. There are large hydration calcium flu silicate (11CaO·4SiO₂·CaF₂) and hydration calcium aluminates at the later stage of hydration.

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Periodical:

Applied Mechanics and Materials (Volumes 584-586)

Pages:

1652-1658

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.584-586.1652

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Online since:

July 2014

Authors:

Tong Wei Lu, Fei Xiao*, Lei Guo, Gui Bo Gao

Keywords:

Accelerating Mechanism, Alkali-Free Liquid Setting Accelerator, Setting Time, Strength

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* - Corresponding Author

References

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