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Complex Relationships Between Salt Type and Rock Properties in a Durability Experiment of Multiple Salt–rock Treatments by Swe Yu; Chiaki T. Oguchi is a Environmental Science article available to read on EtoBox.

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## Abstract A laboratory salt weathering experiment was performed using five salts to attack eight types of rocks to determine the relative significance of rock durability and salt aggressivity to salt crystallization damage. The influence of individual rock properties on the salt susceptibility of the rocks was also evaluated. To study the relation between pore characteristics, salt uptake, and damage, the pre‐ and post‐experiment pore size distributions of the rocks were also examined. It is observed that both salt type and rock properties influenced the damage pattern. The durability ranking of the rocks became significantly altered with the salt type while the variation in salt efficacy ranking with rock type was less pronounced. Of the five salts used, sodium chloride and aluminium sulfate were invariably ineffective with all rock types while sodium carbonate, sodium sulfate, and magnesium sulfate, were markedly more effective in damaging most types of rock used. Of the rock properties investigated, the microporosity (of pores smaller than 0·05 or 0·1 μm) showed the most significant influence on deterioration of the rocks associated with salt crystallization, whereas microporo

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Author

Swe Yu; Chiaki T. Oguchi

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0360-1269)

Published

2009

Language

EN

Field

Environmental Science (Physical Sciences)