Investigations into the improvement of the weather protection of unburnt brick masonry, part 1

Research demonstrates that additives to loam render can significantly enhance the weather protection and seismic resistance of unburnt brick masonry, a critical material for preserving heritage structures like Bam's historic citadel. The study, conducted by the Technical University of Dresden in collaboration with Iranian cultural authorities and UNESCO, involved extensive fieldwork, including surveying, documentation, and rebuilding efforts after the 2003 earthquake that devastated Arg-e-Bam. The investigation focused on improving the shear strength and durability of unburnt brick masonry through innovative surface treatments and climatic chamber tests. Findings from this first part of the study highlight the potential of specific additives to mitigate weather-related degradation, offering a practical solution for conserving UNESCO World Heritage Sites with similar structural challenges.

Braun, J. (2017). Investigations into the improvement of the weather protection of unburnt brick masonry, part 1. Mauerwerk, 21(2), 114–128. Portico. https://doi.org/10.1002/dama.201700725