With the aim of incorporating sustainability into the ordinary concrete production, the construction industry has been utilizing solid waste materials to replace raw ingredients such as natural aggregates and cement. A practical solution to this is the cement-free geopolymer concrete in which alkali activators have chemical reactions with pozzolanic material and cementitious material, such as fly ash, silica fume, and blast furnace slag. The increasing landfill of waste tyre rubber has also resulted in environmental issues. One of the potential utilizations for waste rubber is to partially substitute the natural aggregates of geopolymer concrete. This study experimentally investigated the effect of different proportions of crumb rubber partially replacing both coarse and fine aggregates (i.e. 0%, 15%, and 30% by volume) on the dynamic characteristics of geopolymer concrete. The dynamic compressive properties of geopolymer concrete incorporated with crumb rubber (RuGPC) were studied by Split Hopkinson Pressure Bar (SHPB) tests with strain rate up to 136 s⁻¹. The experimental results showed rubberized geopolymer concrete consistently exhibited better impact resistance as compared with normal geopolymer concrete, as evidenced by crack initiation and propagation, failure mode, and normalized energy absorption. The dynamic compressive strength of rubberized geopolymer concrete showed prominent sensitivity to strain rate and the sensitivity to strain rate increased with the rubber content. Finally, empirical formulae to predict dynamic increase factors (DIFs) of geopolymer concrete compressive strength with various levels of rubber replacement were derived.

为了将可持续性纳入普通混凝土生产中，建筑行业一直在利用固体废料来代替原材料，例如天然骨料和水泥。实际的解决方案是无水泥的地聚合物，其中碱活化剂与火山灰材料和胶凝材料（例如粉煤灰，硅粉和高炉矿渣）发生化学反应。废轮胎橡胶填埋的增加也导致了环境问题。废橡胶的潜在用途之一是部分替代地质聚合物混凝土的天然骨料。这项研究通过实验研究了不同比例的碎胶部分替代粗骨料和细骨料（即0％，15％，和30％（体积））。通过Split Hopkinson压力棒（SHPB）试验研究了掺有碎胶（RuGPC）的地聚合物混凝土的动态压缩性能，应变速率高达136 s。^-1。实验结果表明，与正常的地质聚合物混凝土相比，橡胶化的地质聚合物混凝土始终表现出更好的抗冲击性，这由裂纹的萌生和扩展，破坏模式以及归一化的能量吸收所证明。橡胶地质聚合物混凝土的动态抗压强度表现出显着的应变速率敏感性，并且随着橡胶含量的增加，应变速率敏感性也增加。最后，推导了经验公式，预测了在不同水平的橡胶替代条件下的地聚合物混凝土抗压强度的动态增加因子（DIF）。