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. 2019 Sep 18;12(18):3025. doi: 10.3390/ma12183025

Table 5.

Water absorpion coefficients (WACs) of Schlaitdorfer sandstone and Auer limestone for untreated and treated specimens and relative WAC increase post-consolidation.

Treatment WAC (kg/m2⋅h0.5) WAC Increase 1 (%)
Schlaitdorfer Sandstone Auer Limestone Schlaitdorfer Sandstone Auer Limestone
Sound 3.25 ± 0.86 9.31 ± 0.3 - -
Aged 5.91 ± 1.24 - - -
NL 3.62 8.87 −39 −5
NC 3.36 9.62 −43 3
DAP 2.90 8.78 −51 −6
NL-DAP 3.06 8.99 −48 −3
NC-DAP 2.61 9.3 −56 0
DAP-NL 3.10 8.1 −48 −13
DAP-NC 3.98 8.56 −33 −8

1 For Schlaitdorfer sandstone, the WAC increase was calculated comparing the values of the treated samples with the aged untreated samples; for Auer limestone, with the sound untreated samples.