Current Trends in Stone Consolidation Research: An Overview and Discussion

This work aims to reveal the recent research trends in consolidation of stone-built heritage and discuss advantages drawbacks options strategies followed by researchers over last 10 years. Peer-reviewed articles were used build a database analyze details stone samples (chemical nature, type voids, condition), treatment protocols (application methods products), testing assess strengthening results treatments. In addition, reported increments mechanical properties also examined capabilities The statistical allowed pinpointing varieties that need more frequent actions (limestone, biocalcarenite, sandstone) aspects make them difficult riskier. Other tendencies discussed, for example, predominant use sound decayed (61% vs. 39%) or alkoxysilanes (~46%) other families consolidants (e.g., nanolime, ~21%). current treatments found improve strength; however, most problematic issue state-of-the-art is difficulty identifying high-risk situations over-consolidation poor distribution depth because either lack limitations various assessment techniques.