Jun 17, 2019 New use for recycled glass in polymer concrete. Ground recycled glass can be used as a substitute for sand when making polymer concrete, according to researchers from the Deakin School of Engineering. Polymer concrete, a material commonly used in industrial flooring, uses polymers, typically resins, to replace lime-type cements as a binder. Jul 08, 2005 Photographs courtesy of American Specialty Glass, Inc. If you want concrete that truly sparkles and shines, put some glass in the mix. Glass aggregate can replace part or all of the sand and gravel in concrete, for effects that range from colorful terrazzo, to granite- or marble-like finishes, to concrete that reflects light like a mirror.