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Title: Field Applications of Ground Glass Concrete in a Cold Climatic Region

Author(s): Deep Tripathi, Richard Morin, Mohamed Lamine Kateb, Arezki Tagnit-Hamou

Publication: Materials Journal



Appears on pages(s):

Keywords: chloride ion penetrability; cold climate; coring; field/ site; freeze-thaw; glass powder; ground glass pozzolan; scaling resistance

DOI: 10.14359/51740781

Date: 5/1/2024

As ground glass pozzolan has recently been considered a supplementary cementitious material by the Canadian Standard of Association (CSA A-3000) and the American Standard (ASTM-1866), there is limited study on ground glass utilization on site. So, in this study, several sidewalk projects were performed by the SAQ industrial chair, the University of Sherbrooke, Quebec, Canada, from 2014 to 2017 on fields with different proportions of ground glass (i.e., 10, 15, and 20%) in different conditions are considered in such a cold climatic region. Sidewalks are a non-structural plain concrete element that is among the most exposed to chloride, and freezing and thawing in saturated conditions of municipal infrastructures. Coring campaigns were carried out after several years of exposure to these concrete (between 5 to 8 years). The results of core samples extracted from the sites were compared to the laboratory-cured samples taken during the casting. These laboratory concrete mixtures were tested for fresh, hardened (compressive strength), and durability (freeze-thaw, scaling resistance, chloride ion penetrability, electrical resistivity, and drying shrinkage) properties (up to 1 year). The results show that ground glass concrete performs very well at all cement replacement in all manners in terms of long-term performance. Besides that, using ground glass pozzolan in field projects also decreases carbon footprint, and environmental and glass disposal problems.