Journal Published Online: 13 February 2025
Volume 14, Issue 1

Recycled Glass Powder Produced by Steel and Ceramic Milling as a Supplement to Portland Cement for More Sustainable Concrete

CODEN: ACEMF9

Abstract

This study demonstrates the successful use of eco-friendly recycled glass powders (RGPs) in mortar and concrete as pozzolanic substitute for portland cement. As part of the evaluation, two RGPs were produced by steel and ceramic ball mills, namely, RGP (SB) and RGP (CB), respectively. Also included in the experiment as a reference was a commercial ceramic ball-milled RGP. All three evaluated RGPs were found to be reactive pozzolans based on a series of reactivity test results, including a strength activity index of greater than 80 % on all ages of 7, 28, and 56 days in mortar and concrete. Multiple indicators, such as higher generated heat in pozzolanic reactivity testing by isothermal calorimetry and portlandite consumption, indicated ceramic milling could produce a more reactive glass pozzolan, perhaps from the alumina residue from ceramics milling media. However, the higher reactivity of RGP (CB) did not lead to a greater compressive strength when used in concrete. Furthermore, a color difference was not detected between RGP (SB) and RGP (CB) concrete specimens. This study shows that both steel and ceramic media are viable for RGP production based on pozzolanic reactivity, strength, electrical resistivity, and concrete color. Other factors, such as productivity and cost, should be considered when choosing the proper production method for RGP at the industrial scale.

Author Information

Likes, Lauren
Department of Civil and Environmental Engineering, Washington State University, WA, USA
Markandeya, Ananya
Civil Engineering Department, Washington State University, Pullman, WA, USA
Zarei, Ali
Department of Civil and Environmental Engineering, University of California, Davis, Davis, CA, USA
Mostafa Haider, Md
Department of Civil and Environmental Engineering, Washington State University, WA, USA
Bollinger, David
School of Mechanical and Materials Engineering, Institute of Materials Research, Washington State University, Pullman, WA, USA
McCloy, John
School of Mechanical and Materials Engineering, Institute of Materials Research, Washington State University, Pullman, WA, USA
Nassiri, Somayeh
Department of Civil and Environmental Engineering, Washington State University, WA, USA
Pages: 31
Price: $25.00
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Stock #: ACEM20230142
ISSN: 2379-1357
DOI: 10.1520/ACEM20230142