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Fig. 3 | Heritage Science

Fig. 3

From: Towards a better understanding of hot-mixed mortars for the conservation of historic buildings: the role of water temperature and steam during lime slaking

Fig. 3

SEM images of parent quicklime and of portlandite crystals in limes slaked with the different methods. a CaO crystals in quicklime. b Lime slaked in 1:3 lime:water ratio at 20 °C. c Lime slaked in 1:3 lime:water ratio at 75 °C. d Steam-slaked lime. The left and right columns show a low and high magnification, respectively. Insets in b and d show details of individual crystals

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