Conservation of the Structure and Materials of Historic Masonry Walls

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The paper presents a structural analysis, restoration programme and scope of conservation work essential for protecting historical values based on the example of an overstretched retaining wall providing support for the embankment of an heritage church. The focus was on analysing the status of an historic stone wall constructed in part with bog iron ore (metal ore or iron-rich sedimentary rock). Ore was used for iron smelting and also as a building material. Bog iron ore was frequently used in construction across Poland, especially in places where the raw material was locally available, aesthetically attractive and had mechanical properties approximating the durability of ceramic bricks. The material was characterised by high porosity, low resistance to diffusion and high resistance to freezing, which meant that it could be used successfully in structures subjected to atmospheric impacts without additional protection

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354-362

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September 2014

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