**10. Glass waste additives**

Waste glass is another readily accessible resource that may be utilized in place of cement. Only a portion of waste glass is reused in the production of new glass, and the remainder is discarded owing to impurities, color, or cost.

Glasses are categorized into 32 different kinds, although the most common are soda-lime, vitreous silica, borosilicate, lead, aluminosilicate, alkali silicates, barium, and aluminosilicate glasses [46].

Crushed waste glass has a variety of characteristics, including a high concentration of silicon and calcium and an amorphous structure. As a result, waste glass possesses pozzolanic or cementitious characteristics and can be utilized as a partial substitute for cement.

Ankur et al. published a review of studies that employed silica fume and waste glass into concrete as replacements for cement and provided results on physical and mechanical properties [47].
