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Fig. 3 | Heritage Science

Fig. 3

From: Heritage hydrology: a conceptual framework for understanding water fluxes and storage in built and rock-hewn heritage

Fig. 3

Relative differences in dampness derived from handheld microwave sensor (hf-sensor P1M, penetration 2–3 cm) at a test wall site at campus Bayreuth. Left side: cube-shaped structure without roof and with sand filling (simulating natural rock), right side: hollow, roofed structure on a concrete foundation, simulating a building. Material: Franconian sandstone (“Trebgaster Sandstein”); size of each block is 30 × 30 × 30 cm

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