Melhoramento de um Solo Expansivo com Resíduo de Construção e Demolição

Improvement of an Expansive Soil with Construction and Demolition Residue

Authors

DOI:

https://doi.org/10.21680/2447-3359.2025v11n2ID35064

Abstract

Expansive soils increase in volume when subjected to an increase in moisture and contract when they lose moisture. Construction carried out on expansive soils can present various pathological manifestations.  This article presents a study on the improvement of an expansive soil located in Santa Maria da Boa Vista-PE, mixed with 10%, 20% and 30% construction and demolition waste (CDW), in relation to the mass of the dry sample. Physical and mechanical characterization tests were carried out on the soil and mixtures, chemical and microstructural tests on the soil, and physical and chemical characterization of the CDW. The soil showed 8.58% "free" expansion, making it a soil with a high degree of expansion and the possibility of serious damage due to its expansion stress (81.25 kPa by the Constant Volume Method). The mixture with 30% CDW reduced the expansion stress to 20 kPa and the "free" expansion to 0.90%. Thus, the addition of CDW to the soil proved to be efficient in stabilizing expansion.

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Author Biographies

Rafaella Pereira Marinho, Universidade Federal de Pernambuco

Graduated in Civil Engineering from the Federal University of Paraíba (2013). Specialist in Building Installations Engineering. MBA in Design, Execution and Control of Structures and Foundations. Master's in Civil Engineering in Geotechnics from the Federal University of Pernambuco (2018). PhD student in Civil Engineering in the area of Geotechnics at the Federal University of Pernambuco. Professor of Civil Engineering at IF Sertão-PE - Serra Talhada.

Silvio Romero de Melo Ferreira, Universidade Federal de Pernambuco

Civil Engineer from the Federal University of Pernambuco - UFPE (1979), Master in Civil Engineering from the Federal University of Rio de Janeiro - (1982), Specialist in Higher Education Methodology from UNICAP (1985) and PhD in Civil Engineering from the Federal University of Rio de Janeiro (1995) and Post Doctorate at the University of São Paulo - USP (2010). Full Professor at the Federal University of Pernambuco and leader of the Unsaturated Soils Research Group at UFPE.

 

Maria Isabela Marques da Cunha Vieira Bello, Universidade Federal de Pernambuco

Graduated in Civil Engineering from the Federal University of Pernambuco (2000), a master's degree (2004) and a doctorate (2011) in civil engineering in the field of geotechnics from the Federal University of Pernambuco and a post-doctorate from the Polytechnic School of the University of São Paulo. Adjunct Professor IV of the Civil Engineering course and permanent member of the Postgraduate Program in Civil and Environmental Engineering (PPGECAM) at the Agreste Campus of the Federal University of Pernambuco.

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Published

18-08-2025

How to Cite

MARINHO, Rafaella Pereira; FERREIRA, Silvio Romero de Melo; BELLO, Maria Isabela Marques da Cunha Vieira. Melhoramento de um Solo Expansivo com Resíduo de Construção e Demolição : Improvement of an Expansive Soil with Construction and Demolition Residue. Notheast Geoscience Journal, [S. l.], v. 11, n. 2, p. 47–59, 2025. DOI: 10.21680/2447-3359.2025v11n2ID35064. Disponível em: https://periodicos.ufrn.br/revistadoregne/article/view/35064. Acesso em: 25 aug. 2026.

Issue

Vol. 11 No. 2 (2025):

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Artigos

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