采用力学性能试验和冻融循环试验研究质量分数为0、5%、10%和15%的橡胶掺量下地聚合物橡胶混凝土（GPRC）的抗冻性能，通过对比分析外观损伤、质量损失、相对动弹模量损失和强度损失探究使GPRC抗冻性能达到最优的橡胶掺量。与不掺入橡胶的GPRC相比，随着橡胶掺量的增加，掺入5%、10%和15%橡胶的GPRC抗压强度分别下降6%、13%和22%，劈裂抗拉强度分别下降17%、21%和35%，抗折强度分别下降6%、12%和31%；随着冻融次数的增加，橡胶掺量越高，GPRC外观损伤越小，完整性越高，100次冻融时，GPRC0~GPRC15的质量损失率分别为6.5%、6.3%、3.7%和1.7%，相对动弹模量损失分别为46.77%、44.09%、29.81%和20.69%。GPRC10和GPRC15在75次冻融之后质量损失和相对动弹模量损失均较稳定；抗压强度、劈裂抗拉强度和抗折强度损失均随着冻融次数的增加逐渐降低，但随着橡胶掺量的增加，损失率逐渐减小。橡胶掺量的增加可以减缓冻融对GPRC除劈裂抗拉强度外的损失速率，橡胶掺量超过10%的GPRC在75次冻融后劈裂抗拉强度会加速下降。研究表明，橡胶的加入可以有效提高GPRC的抗冻性能，且掺量越多，抗冻性能越强，但同时也会降低混凝土的强度。从抗冻性的角度出发，在不考虑劈裂抗拉强度衰减的情况下，15%为最佳橡胶掺量；考虑劈裂抗拉强度，10%为最佳橡胶掺量。结合实际应用情况，橡胶掺量以10%为宜。

The frost resistance of geopolymer rubberized concrete (GPRC) with 0, 5%, 10%, and 15% of mass fraction of rubber content was investigated through mechanical property tests and freeze-thaw cycle tests. The optimal rubber content for the best frost resistance of GPRC was explored by comparing and analyzing the appearance damage, mass loss, relative dynamic elastic modulus loss, and strength loss. Compared with GPRC without rubber, the compressive strength of GPRC with 5%, 10%, and 15% rubber content decreased by 6%, 13%, and 22%, respectively. The splitting tensile strength decreased by 17%, 21%, and 35%, respectively. The flexural strength decreased by 6%, 12%, and 31%, respectively. As the number of freeze-thaw cycles increased, higher rubber content resulted in less appearance damage and better integrity of GPRC. After 100 freeze-thaw cycles, the mass loss rates of GPRC0 to GPRC15 were 6.5%, 6.3%, 3.7%, and 1.7%, respectively. The relative dynamic elastic modulus losses were 46.77%, 44.09%, 29.81%, and 20.69%, respectively. GPRC10 and GPRC15 showed stable mass loss and relative dynamic elastic modulus loss after 75 freeze-thaw cycles. The compressive strength, splitting tensile strength, and flexural strength all gradually decreased with increasing freeze-thaw cycles. However, the loss rate decreased with increasing rubber content. The increase in rubber content could slow down the loss rate of GPRC except for the splitting tensile strength. For GPRC with more than 10% rubber content, the splitting tensile strength would accelerate the decline after 75 freeze-thaw cycles. The study indicates that the addition of rubber can effectively improve the frost resistance of GPRC, and the higher the content, the better the frost resistance. However, the strength of the concrete is reduced at the same time. From the perspective of frost resistance, without considering the decay of splitting tensile strength, 15% is the optimal rubber content. Considering the splitting tensile strength, 10% is the optimal rubber content. Taking into account the actual application, a rubber content of 10% is recommended.