Review of using glass in high-performance fiber-reinforced cementitious composites

As an increasing amounts of waste glass are produced annually, recycling glass in manufacturing concrete shows economic and environmental benefits. Recently, glass has been used as one of the ingredients to prepare high-performance fiber-reinforced cementitious composites (HPFRCCs), like strain-hardening cementitious composite and ultra-high-performance concrete, featuring high mechanical properties and long-term durability. While the application of glass particles may reduce the material cost, however, fundamental knowledge of the effects of using glass to replace concrete components on the key properties (e.g., mechanical properties, fresh properties, durability) and the underlying mechanisms is still lacking. This study aims to reveal the roles of waste glass particles on the key properties, clarify the fundamental mechanisms, and point out viable strategies to enhance the key properties of HPFRCCs incorporating glass. To this end, the paper reviews existing studies on using glass in preparing HPFRCCs and discusses possible methods to develop HPFRCCs with glass particles. While there are different types of glass, this review focuses on soda-lime glass, which is representative among all types of glass. At last, life cycle analysis is conducted to assess the effect of using glass particles on reducing the cost, CO2 emission, and energy consumption. This review aims to enhance the fundamental knowledge of HPFRCC and propose further research of HPFRCCs incorporating glass.