Table 4 Results of brick water adsorption after Spraying.

From: Application of nano-pico geotechnics and nano-pico heritage spray techniques for restoring and protecting historical brick buildings

Sample No. (i)

\(\:{\mathbf{G}}_{\mathbf{i}}^{\mathbf{{\prime\:}}}\mathbf{\%}\)

N%

N(g)

\(\:{\mathbf{W}\mathbf{i}\mathbf{{\prime\:}}}_{2}\)

\(\:{\mathbf{W}\mathbf{i}\mathbf{{\prime\:}}}_{1}\)

\(\:{\varvec{W}}_{0}^{\mathbf{{\prime\:}}}\varvec{i}\)

1

16%

1.75

10

664.0

568.2

571.81

2

14%

1.6

10

709.2

619.0

624.1

3

14%

1.71

10

663.2

577.3

582.1

4

16%

1.36

8

680.0

584.4

588.7

5

16%

1.37

8

672.4

576.2

580.5

  1. *Note: Samples 6, 7 and 8 in the table above were removed due to the low nano content of 8 grams and incomplete coverage of the brick surface. W₀’ (g): Initial dry weight of the sprayed brick sample (grams), W₁’ (g): Weight after partial saturation, W₂’ (g): Weight after full saturation in water, N (g): Mass of nanoclay applied to the sample, N (%): Percentage of nanoclay in the solution used for spraying, Gi’ (%): Percentage increase in weight due to water absorption post-spray, Sample No. (i): Identifies each tested sample.
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