Preliminary Study on the Durability of Cement Mortar Mixes with Recycled Fine Aggregate Substitute from Residual Copper Slag (ECr)

Authors

  • Berta Vivar Universidad de Magallanes, Facultad de Ingeniería
  • Yasna Segura Universidad de Magallanes, Facultad de Ingeniería
  • Katherine Millapel Davison Company Group, Departamento Técnico
  • Claudio Villarreal Universidad de Magallanes, Facultad de Ingeniería

Keywords:

Aggregates, Compressive strength, Durability, Residual copper slag

Abstract

In the Magallanes and Chilean Antarctic Region, companies dedicated to the assembly of metal structures use a byproduct of the copper industry (copper slag - ECr) as an abrasive material for surface cleaning. The company ASMAR - Magallanes produces approximately 380 tons of granulate waste annually. Currently, this waste is stored at the production site. This research analyzes the possibility of reusing ECr as a substitute for fine aggregate in cement mortar mixes, creating different mixtures to verify the results of the compressive strength by replacing ECr (10-20-30-40-50%). Once the results were evaluated, three mortar mixtures were selected - Pattern / 50-50 / 80-20 - to assess their behavior in terms of durability, subjecting them to freeze-thaw cycles and sulfate attack, tested according to current standards. Additionally, the compressive strength was obtained through non-destructive testing (NDT). As a final analysis, in response to these exposures, both tests yielded positive results; when compared to the control specimens, the test specimens did not suffer spalling or significant changes in length. The results related to compressive strength remain stable or increase in the 80-20 mixture.

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Published

2024-12-23

How to Cite

Vivar , B., Segura , Y., Millapel , K., & Villarreal , C. (2024). Preliminary Study on the Durability of Cement Mortar Mixes with Recycled Fine Aggregate Substitute from Residual Copper Slag (ECr). Journal of Construction and Civil Engineering, 12(3), 1–8. Retrieved from https://rioc.ufro.cl/index.php/rioc/article/view/3370

Issue

Vol. 12 No. 3 (2024): RIOC

Section

Articles

License

Copyright (c) 2024 Berta Vivar , Yasna Segura , Katherine Millapel , Claudio Villarreal

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