Economic and Environmental Geology

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Table. 3.

Table. 3.

Comprehensive deterioration rate of foundation stones by rock types in the Sebyeonggwan Hall

Rock Type Index Deterioration Rate (%)
Crack Blistering Scaling Break out Black discolored Brown discolored White discolored Restoration material Deposit
Dacitic Lapilli Tuff 5.4 14.6 3.7 - 0.4 17.1 2.9 1.7 0.3
Basaltic Welded tuff 0.3 1.1 - - 0.6 - - 7.7 -
Andesitic Welded tuff 0.9 6.7 - - - 6.1 0.5 8.3 0.9
Basaltic Andesite 0.5 2.4 0.7 0.1 0.4 38.9 - 3.1 3.6
Rhyolite - - 1.6 - 9.9 - - - -
Diorite - 0.7 - - - - - - -
Econ. Environ. Geol. 2021;54:199-212 https://doi.org/10.9719/EEG.2021.54.2.199
© 2021 Econ. Environ. Geol.