Abstract
This paper investigates the frost durability of segmental retaining wall (SRW) units. The authors compare databases of ASTM C 1262 freezing-and-thawing mass loss with SRW material characteristics to assess the usefulness of these characteristics in developing frost durability indexes. The research is part of a larger study of SRW concrete durability. Within the research, a consistently reliable parameter correlating with mass loss in water is the paste-to-total (air and compaction) voids ratio. Another parameter showing a fair correlation to mass loss is the index of the National Concrete Masonry Association (NCMA). The authors also examine results of tests performed in 3% saline (NaCl) solution, which show greater variability than results for tests in water. Conclusions reached by the authors note that tests in water, though showing a correlation between frost resistance and material properties, cannot be used to predict how specimens would perform in saline solution.
Published Version
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