Alkali-activated binders (AAB) are materials based mainly on silica, alumina, and/or calcium precursors, activated by an alkaline solution, and have mechanical properties equivalent to Portland cement-based matrices. However, their brittle behavior requires the use of reinforcements to make them suitable for dynamic or tensile load applications. Vegetable fibers (VF) could reinforce fragile construction materials, such as mortar and concrete, improving toughness and post-cracking strength. However, little is known about VF durability when used as a reinforcement of AAB. Thus, this work is a literature review regarding the use of VF as an AAB reinforcement, discussing the durability aspects of these fibers as well as future challenges for consideration of the composite. Mechanism of degradation of vegetable fibers in alkali-activated matrices based on sodium has been introduced. Furthermore, this review concluded that surface protection through direct treatments can be an important factor for the durability of vegetable fibers. The main effects of the degradation of composites observed were the reduction in flexural strength and the reduction of matrix/fiber adhesion.

碱活化粘合剂 (AAB) 是主要基于二氧化硅、氧化铝和/或钙前体的材料，由碱性溶液活化，具有与波特兰水泥基基质相当的机械性能。然而，它们的脆性行为需要使用增强材料才能使其适用于动态或拉伸载荷应用。植物纤维 (VF) 可以加固易碎的建筑材料，如砂浆和混凝土，提高韧性和开裂后强度。然而，当用作 AAB 的增强材料时，对 VF 的耐久性知之甚少。因此，这项工作是关于使用 VF 作为 AAB 增强材料的文献综述，讨论了这些纤维的耐久性方面以及考虑复合材料的未来挑战。介绍了基于钠的碱活化基质中植物纤维的降解机理。此外，该评论得出结论，通过直接处理进行表面保护可能是植物纤维耐久性的重要因素。观察到的复合材料降解的主要影响是弯曲强度的降低和基体/纤维粘合力的降低。