Fig. 5 | Scientific Reports

Fig. 5

From: Impact of spraying commercial Bentonite Nanoclay on fortification of the mortar as Nano Sprying Technique (NST) in heritages and historical buildings

Fig. 5The alternative text for this image may have been generated using AI.

The effect of freezing on samples. Control sample after performing the frost resistance test with a magnification of 20 µm. (A) sample sprayed with the optimal percentage of NB4-2 spray after the frost resistance test with a magnification of 20 µm. (B).

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