3D printing of concrete is commonly viewed as a promising way to manufacture novel structural sections with numerous benefits. This process, however, relies upon a specific set of timely parameters that can have significant impact on the long-term performance and durability of the printed sections, especially since they are potentially expected to be exposed to the outside environments. In that respect, this article provides a critical review of the durability properties of 3D printed concrete (3DPC) sections, including the effect of printing parameters, mixture proportions, and key materials on shrinkage behavior, porosity and pore connectivity, freeze thawing, fire, chemical, and acid resistance. Based on this review, it is found that the thermo-durability properties of 3D printed concrete sections are highly sensitive to the shrinkage potential and printing time interval, which can significantly alter the porosity and pore connectivity of the printed concrete, especially at interlayer bonding regions. Suggestions for improving the durability of 3D printed concrete sections exposed to the various environments are also provided in the final part of this review.

混凝土的 3D 打印通常被认为是制造具有众多优势的新型结构型材的有前途的方法。然而，这个过程依赖于一组特定的及时参数，这些参数可能对打印部分的长期性能和耐用性产生重大影响，特别是因为它们可能会暴露在外部环境中。在这方面，本文对 3D 打印混凝土 (3DPC) 截面的耐久性性能进行了批判性审查，包括打印参数、混合比例和关键材料对收缩行为、孔隙率和孔隙连通性、冻融、火灾、耐化学性和耐酸性。基于此审查，研究发现，3D打印混凝土截面的耐热性对收缩势和打印时间间隔高度敏感，这会显着改变打印混凝土的孔隙率和孔隙连通性，尤其是在层间粘合区域。本综述的最后部分还提供了提高暴露于各种环境的 3D 打印混凝土部分的耐久性的建议。