Influence of Aggregate Volume Ratio of Mortar on the Migration of Cations Using the Accelerated Lithium Migration Technique

Abstract:

This study utilizes mortar specimens, to design 3 different a/c ratios of 2.25, 2.75, and 3.25. The aggregate volume ratios (V_f) are 46 %, 52 %, and 57 %, respectively, while the w/c ratio is 0.5, and undergoing a 9, 12, and 15 A/m2 constant current density Accelerated Lithium Migration Technique after curing for 3 months. Results show that, on specimens applied with the same current density, the time of Li⁺ to pass through the specimen, and steady state flux and migration coefficient all exhibit a positive linear correlation with V_f. At the same time, the non-steady state migration coefficient for Li⁺ have a negative linear correlation with V_f.

• Periodical: Advanced Materials Research (Volumes 230-232)
• Pages: 400-404
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.230-232.400
• Online since: May 2011
• Authors: Wei Chien Wang, Chih Chien Liu, Chau Lee
• Keywords: Alkali-Aggregate Reaction (AAR), Electrochemical Technique, Lithium, Migration

References

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