Title: Recycling of waste glass in concrete plant as aggregate and pozzolan replacement

Authors: Cem Kılıçoğlu; Semra Çoruh

Addresses: Kavak Vocational School, Ondokuz Mayis University, Kavak/Samsun, Turkey ' Department of Environmental Engineering, Ondokuz Mayıs University, 55139 Samsun, Turkey

Abstract: In this study, waste glasses that are not possible to be recycled were used in concretes as a pozzolan and coarse aggregate, and thus those are provided to be used as if those were recycled. In the first group (I); waste glass (WGA) is considered as a fine aggregate in a concrete. The used WGA was reduced to 5-12 mm in size corresponding the proportions of 0%-50% in the production of CEM I type cement. The other group (II); waste glass powder (WGP) were ground and incorporated into concrete with the levels of 5%, 15% and 30% by the weight of binder. The experimental results indicate for the group I; using WGA as aggregate did not have marked effect on the workability of concrete. For group II; the experimental results indicate that the mixtures which were ground with 5% waste glass as a pozzolan and 10% waste glass as fine aggregate gave compressive strength performance similar to the reference mixture. Higher percentage of waste glass (15%) replacement yielded lower strength values.

Keywords: waste management; waste glass powder; concrete workability; cement; compressive strength; waste recycling; glass recycling; coarse aggregate; fine aggregate; pozzolan replacement.

DOI: 10.1504/IJGW.2017.082771

International Journal of Global Warming, 2017 Vol.11 No.3, pp.250 - 262

Received: 11 Oct 2014
Accepted: 05 Mar 2015
Published online: 12 Mar 2017 *

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