Concrete waste as a substitute for cement: Evaluation of compression strength and CO2 emissions

Authors

  • Dayana Ruth Bola Oliveira
  • Gabriela Leite
  • Melissa Pastorini Proença
  • Kathleen Dall Bello de Souza Risson
  • Edna Possan
  • José Marques Filho

Keywords:

Concrete waste, Particle treatment, CO2 emissions.

Abstract

Compressive strength and CO2 emissions of Portland cement (CP) matrices were evaluated, with the replacement of 0%, 7%, 15%, and 25% of concrete waste as a function of waste processing time (0, 0.5, 2, and 6 h). The results indicate that the compressive strength in the matrix, with 15% and 25% of treated waste, meets the requirements for class C40, and C32 of the Brazilian technical standard for PC, with the potential to mitigate emissions per ton of cement by up to 25%. With concrete waste, it was possible to reduce 13% of cement consumption/MPa

 

DOI: https://doi.org/10.56238/methofocusinterv1-114

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Published

2023-03-25

Issue

METHODOLOGY FOCUSED ON THE AREA OF INTERDISCIPLINARITY- V1

Section

Exact and Earth Sciences

License

Copyright (c) 2023 Dayana Ruth Bola Oliveira, Gabriela Leite , Melissa Pastorini Proença, Kathleen Dall Bello de Souza Risson, Edna Possan, José Marques Filho

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

How to Cite

Concrete waste as a substitute for cement: Evaluation of compression strength and CO2 emissions. (2023). Seven Editora, 210-227. https://sevenpublicacoes.com.br/editora/article/view/574