Alkali-activated binders (AABs) have the potential to consume various types of cementitious waste materials, including coal ashes, municipal solid waste incinerator ash, palm-oil fuel ash, steel slags, mine tailings, cement kiln dust, ceramic tile residue, rice husk ash, and waste glass. This paper presents a study of alkali-activated cement paste produced with the substitution of the cementitious waste material soda-lime glass, which makes up the major proportion of the general glass waste stream. In the alkali-activated cement paste, crushed soda-lime glass powder (CG) was used as a replacement for class F fly ash (FA) from 0 to 30% by total solid weight, keeping the ground granulated blast furnace slag (GGBFS) content constant at 50%. The influence of activator molarity (4–8 M), alkaline liquid/solid binder (L/S) ratio (0.4–0.5) and different curing conditions (ambient air curing, wet curing, and short-term heat curing) on the rheology, strength, and microstructure of CG-substituted AABs was investigated and optimum conditions are suggested. According to the experimental results, both the workability and strength (compressive and tensile) of the AAB gradually increased with increasing level of substitution of FA by CG. Significant improvement in flow and setting time was seen with the addition of CG, even in mixtures with a low L/S ratio of 0.4. Both ambient and wet curing had more influence on the strength gain of AABs, especially after 28 days. Short-term heat curing resulted in high early strength gain. The dissolution of CG increased with increasing molarity (from 4 to 8 M) of the alkaline solution, which improved both strength and microstructure with curing time. Morphological and elemental analysis indicated an improvement of the microstructure of AABs due to the increased formation of calcium-dominant hydration products and hence reduced porosity with the substitution of CG. However, undissolved large-sized CG particles agglomerated in the binder without participating in the alkaline reactions. These agglomerated particles may induce micro-cracks due to weak bonding between the cement matrix and the smooth CG interface, which reduces the durability of AABs. Therefore, the inclusion of waste soda-lime glass powder with a mean diameter of 10–15 µm as a precursor in FA/GGBFS-based AAB as a replacement for FA is feasible and provides a good solution for waste material recycling.

碱活化粘合剂（AAB）可能消耗各种类型的水泥废料，包括煤灰，城市固体垃圾焚烧炉灰，棕榈油燃料灰，钢渣，矿山尾矿，水泥窑粉尘，瓷砖残渣，大米稻壳灰和废玻璃。本文介绍了替代水泥性废料钠钙玻璃生产的碱活化水泥浆的研究，该浆占普通玻璃废料流的主要部分。在碱活化水泥浆中，使用粉碎的钠钙玻璃粉（CG）替代F级粉煤灰（FA），其固含量为0至30％（按总固体重量计），以保持磨碎的高炉矿渣（GGBFS）含量恒定为50％。活化剂摩尔浓度（4-8 M），碱性液体/固体粘合剂（L / S）比（0.4-0）的影响。5）并研究了不同的固化条件（环境空气固化，湿固化和短期热固化）对CG取代AAB的流变性，强度和微观结构的影响，并提出了最佳条件。根据实验结果，随着CG对FA取代水平的提高，AAB的可加工性和强度（抗压和抗拉）都逐渐增加。加入CG可以显着改善流动性和凝固时间，即使在L / S比为0.4的混合物中也是如此。室温固化和湿固化都对AAB的强度增加有更大的影响，尤其是在28天后。短期热固化导致较高的早期强度增加。CG的溶解度随着碱溶液的摩尔浓度（从4到8 M）的增加而增加，这随着固化时间的增加而提高了强度和微观结构。形态和元素分析表明，由于增加了钙为主的水合产物的形成，从而改善了AAB的微观结构，因此用CG替代了降低的孔隙率。然而，未溶解的大尺寸CG颗粒在粘合剂中附聚而不参与碱性反应。这些团聚的颗粒可能会由于水泥基质与平滑CG界面之间的弱结合而引起微裂纹，从而降低了AAB的耐久性。因此，在基于FA / GGBFS的AAB中，将平均直径为10–15 µm的废钠钙玻璃粉作为前体来替代FA是可行的，并为废料回收提供了良好的解决方案。