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Paper Titles
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Freeze-Thawing Damage Model of New-to-Old Concrete with Different Rough Interfaces
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Influence of Freeze-Thaw Cycles on Multiaxial Strength of Concrete
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Experimental Investigations on Expansion Performance of Alkali-Aggregate Reaction of Mortar
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Experimental Investigations on Expansion Performance of Alkali-Aggregate Reaction of Mortar

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Abstract:

Volume expansion is the distinguishing characteristic of concrete occurring AAR. Expansion performance of mortar with different particle size composition aggregate was tested in this paper. The result show that MR specimens with part alkali active sand and R specimens with total alkali active sand present obvious expansion. But expansion ratio of NR specimen with inactive sand remains generally stable and is only 0.02%. Ultimate expansion ratio of specimen due to AAR is not in proportion to content of alkali active aggregate. There is a possible ratio for alkali active aggregate and inactive aggregate to acquire a larger ultimate expansion account. Furthermore, expansion ratio of specimens due to AAR and reaction time present the exponential function relationship.

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Periodical:

Applied Mechanics and Materials (Volumes 405-408)

Pages:

2719-2723

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.405-408.2719

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Online since:

September 2013

Authors:

Feng Ouyang, Da Chen, Ying Di Liao, Chao Hua Jiang

Keywords:

Alkali-Aggregate Reaction (AAR), Expansion Performance, Forecast Equation

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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