玻璃纤维（glass fiber, GF）作为一种20世纪就广泛应用于各大领域的纤维，同样的也可以通过添加纤维来改善再生混凝土的力学性能，现对玻璃纤维再生混凝土（glass fiber recycled concrete, GFRAC）的力学性能进行了综述。结果表明，由于再生骨料以及其表面的旧砂浆的存在，导致再生混凝土内部存在多个复杂的界面过渡段，这些过渡段影响了再生混凝土的强度。而通过适当地添加玻璃纤维，可以利用纤维的桥接作用来提高界面过渡区的强度来改善再生混凝土这一缺陷。研究表明，随着再生骨料的替代率的提高，再生混凝土的抗压强度明显下降，而加入纤维能够有效地提高抗压强度，当再生骨料替代率在30%左右，纤维掺量在0.5% ~ 0.75%时，纤维长度为12 ~ 18 mm的混合长度时，抗压强度达到最佳。并且抗弯强度也是在同样的条件下达到最佳；当控制纤维掺入量不变时，将再生骨料替代率提高至70%时，再生混凝土劈裂抗拉强度达到最大。

GF (glass fiber), as a kind of fiber that has been widely used in all major fields in the last century, can likewise be added to improve the mechanical properties of recycled concrete, and a review of the mechanical properties of GFRAC (glass fiber recycled concrete) was presented. The results show that the presence of recycled aggregate and the old mortar on its surface leads to the existence of several complex interfacial transition segments within the recycled concrete, and these transition segments affect the strength of recycled concrete. This defect of recycled concrete can be improved by adding glass fibers appropriately, which can improve the strength of the interfacial transition zones by using the bridging effect of the fibers. Studies have shown that with the increase of the replacement rate of recycled aggregate, the compressive strength of recycled concrete decreases significantly, and the addition of fibers can effectively improve the compressive strength, and when the replacement rate of recycled aggregate is about 30%, the fiber mixing rate is 0.5% to 0.75%, and the fiber length is from 12 mm to 18 mm of the mixing length, the compressive strength reaches the optimum. And the flexural strength is also optimal under the same conditions. When the control of fiber admixture is unchanged, the recycled aggregate replacement rate is increased to 70%, the recycled concrete splitting tensile strength reaches the maximum.