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Weathering of Rocks in Brazil

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Soft Rock Mechanics and Engineering

Abstract

Weathering comprises an important mechanism controlling the mechanical behavior of Brazilian rocks in civil and mining engineering works. The intense physical and chemical weathering caused by tropical climate imposes severe changes on strength and deformability behavior of rocks and creates a complex weathering profile which must be appropriately understood in order to provide useful design information and avoid or reduce geotechnical problems. In this chapter, information is presented on the main effects of weathering acting on rocks in Brazil, focusing on the effect of the process on physical, chemical, mineralogical, and mechanical characteristics. Results of several field descriptions and laboratory results are presented. These results show that most rocks behave as soft rocks in different stages of weathering. At the end of the chapter some studies currently under development on this theme are presented.

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Author information

Authors and Affiliations

  1. Universidade Federal de Viçosa, Viçosa, Brazil

    Eduardo Antonio Gomes Marques & Marcio Fernandes Leão

  2. Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, Brazil

    Eurípedes do Amaral Vargas Jr

Authors
  1. Eduardo Antonio Gomes Marques
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  2. Eurípedes do Amaral Vargas Jr
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  3. Marcio Fernandes Leão
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Editors and Affiliations

  1. Polytechnical School, University of São Paulo, São Paulo, São Paulo, Brazil

    Milton Kanji

  2. State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining & Technology (Beijing), Tongji University, Beijing, China

    Manchao He

  3. Department of Civil Engineering, University of Porto, Porto, Portugal

    Luís Ribeiro e Sousa

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Marques, E.A.G., Vargas, E.d.A., Leão, M.F. (2020). Weathering of Rocks in Brazil. In: Kanji, M., He, M., Ribeiro e Sousa, L. (eds) Soft Rock Mechanics and Engineering . Springer, Cham. https://doi.org/10.1007/978-3-030-29477-9_10

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