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

Oliveira DRB;
Leite G;
Proença MP;
Risson KDBS;
Possan E;
Marques Filho J

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


Creative Commons License

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

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

Author(s)

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