Inhibition of swelling clays and consolidation of Itararé Sandstone using diaminoalkanes (DAA) and ethyl silicate (TEOS)

Grossi, Danielle; Lama, Eliane Aparecida Del

doi:10.1590/2317-4889202220210061

Braz. J. Geol.

2022

DOI: 10.1590/2317-4889202220210061

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Inhibition of swelling clays and consolidation of Itararé Sandstone using diaminoalkanes (DAA) and ethyl silicate (TEOS)

Danielle Grossi

Eliane Aparecida Del Lama

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2023

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Current Trends in Stone Consolidation Research: An Overview and Discussion

Fonseca

2023

Buildings

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

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Current Trends in Stone Consolidation Research: An Overview and Discussion

Fonseca

2023

Buildings

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Inhibition of swelling clays and consolidation of Itararé Sandstone using diaminoalkanes (DAA) and ethyl silicate (TEOS)

Cited by 1 publication

References 24 publications

Current Trends in Stone Consolidation Research: An Overview and Discussion

Current Trends in Stone Consolidation Research: An Overview and Discussion

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