Glass waste replacement in mortars for internal coatings

rhealogical and mechanical effects

Authors

Keywords:

Glass waste, Coating mortar., Rheology., Mechanical strength, Sustainability

Abstract

The use of waste materials in concrete and mortar is environmentally and economically advantageous, as it reduces cement consumption and preserves natural aggregates. This study investigated the effects of using different types of glass waste on the properties of mortars for internal coatings, in both fresh and hardened states. Four types of glass waste were evaluated, with particle packing and the optimal replacement percentage determined using a software, based on a commercial reference mortar. The produced mortars were characterized through consistency tests, rheology (Pheso rheometer and squeeze-flow), specific gravity, air content, flexural strength, compressive strength and pull-off adhesion strength. Results indicated that all formulations showed pseudoplastic behavior. Mortars with glass waste showed lower torques and consistency indexes compared to the reference, suggesting improved workability. Furthermore, all glass-containing mortars demonstrated adequate performance for internal coating applications, with some mixtures showing specific improvements in flexural tensile strength. It is concluded that the incorporation of glass waste in mortars is technically feasible, contributing to both performance enhancement and sustainability in the construction sector.

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Author Biographies

Bruna Tayna Macedo Fideles, UNIVERSIDADE FEDERAL DO CEARÁ

Graduação em Engenharia Civil com ênfase em construção civil e ênfase em ambiental pela Universidade Estadual Vale do Acaraú. Especialização em Engenharia Diagnóstica: Patologia, Desempenho e Perícias na construção civil pelo INBEC/UNIP. Técnica em Eletrotécnica pelo Instituto Federal de Educação, Ciência e Tecnologia do Ceará (IFCE). Mestrado em Engenharia Civil, área de concentração construção civil, com linha de pesquisa em tecnologia dos materiais e sistemas construtivos, na Universidade Federal do Ceará (UFC).

Abcael Ronald Santos Melo, UNIVERSIDADE FEDERAL DO CEARÁ

Bachelor's degree in Civil Engineering from the Federal University of Ceará (UFC). Since 2020, he has been a member of the ReoM research group, where he conducts research related to the fatigue of cementitious materials. From 2018 to 2021, he was a member of the Avoante Aeromec Aerodesign extension project, where he worked as a designer in the Stability and Control sector until 2019. In 2020, he took over as manager of the Aerodynamics sector and in 2021 he became Project Director, managing the team's projects. In 2018, he was a fellow at the Center for Health Technologies and Distance Education at the UFC School of Medicine (NUTEDS/FAMED/UFC), where he developed a data survey on medical schools throughout Brazil. In 2019, he was a fellow at the College of Advanced Studies at UFC (CEA), seeking to disseminate the knowledge developed by the institution. In 2022, he completed his undergraduate degree. In 2023, he enrolled in a master's program at UFC, conducting research related to the rheology and fatigue of concrete. He completed his master's degree in 2025.

Kamilla Gonçalves Guedes , UNIVERSIDADE FEDERAL DO CEARÁ

Possui graduação em Engenharia Civil pela Universidade de Fortaleza(2015). Atualmente é ENGENHEIRA CIVIL do Edro Engenharia. Tem experiência na área de Engenharia Civil.

Antônio Eduardo Bezerra Cabral, UNIVERSIDADE FEDERAL DO CEARÁ

He holds a degree in Civil Engineering from the Federal University of Ceará (1997), a master's degree in Civil Engineering (Civil Construction) from the Federal University of Rio Grande do Sul (2000), and a doctorate in Environmental Engineering Sciences from the University of São Paulo (2007), with an internship abroad (University of Technology, Sydney - Australia) and a postdoctoral internship at the Universitat Politècnica de Catalunya (UPC-Barcelona, Spain, 2012). He is currently an Associate Professor in the Department of Structural Engineering and Civil Construction (DEECC) at the Federal University of Ceará (UFC). He teaches undergraduate courses in Civil Engineering and in the Graduate Program in Civil Engineering: Structures and Civil Construction (PEC) at UFC, in addition to participating in and coordinating several research and extension projects. He has experience in the field of Civil Construction, working mainly on the following topics: diagnosis of pathological manifestations in buildings, repair and reinforcement of reinforced concrete, concrete and Portland cement mortar technology, alkali-activated cement, geopolymer, use of unconventional materials in civil construction, and management of solid waste from civil construction.

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Published

2026-08-09

How to Cite

FIDELES, Bruna Tayna Macedo; MELO, Abcael Ronald Santos; GUEDES , Kamilla Gonçalves; CABRAL, Antônio Eduardo Bezerra. Glass waste replacement in mortars for internal coatings: rhealogical and mechanical effects. Ambiente Construído, [S. l.], v. 26, 2026. Disponível em: https://seer.ufrgs.br/index.php/ambienteconstruido/article/view/149909. Acesso em: 10 aug. 2026.

Issue

Vol. 26 (2026): Edições Especiais & Artigos

Section

Edição especial SBTA 2025

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Copyright (c) 2026 Ambiente Construído

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