Three-dimensional (3D) concrete printing is an advanced and promising construction method that shows great development potential in the field of construction engineering owing to its highly flexible and intelligent characteristics. The printing path design that is directly related to the 3D printing process is usually limited by the time-dependent rheological properties of concrete composites and the nozzle opening of the print head. Improper path design is liable to disruption, interfacial defects, self-intersection, and even a certain amount of unfilled areas. This paper proposes a flexible and adaptive transfinite mapping method for the path planning of 3D concrete printing by properly mapping a predetermined continuous-type path to the digital model to be printed. This method combines the morphological features of the digital model and path types to achieve a high-quality and high-continuity adaptive printing path. Meanwhile, the relationship between the extrusion process parameters of cementitious composites is experimentally measured and subsequently incorporated into the path design program to realize zero-gap printing by in-process controlling the extrusion parameters. The advantages of this method in adapting to the diversity of morphological features and path types are verified by a set of free-form structures, and the applicability is experimentally validated.

三维（3D）混凝土打印是一种先进且有前途的施工方法，由于其高度灵活和智能化的特点，在建筑工程领域显示出巨大的发展潜力。与 3D 打印过程直接相关的打印路径设计通常受到混凝土复合材料随时间变化的流变特性和打印头喷嘴开口的限制。不合理的路径设计容易出现中断、界面缺陷、自相交，甚至出现一定数量的未填充区域。本文通过将预定的连续型路径正确映射到要打印的数字模型，提出了一种灵活且自适应的超限映射方法，用于 3D 混凝土打印的路径规划。该方法结合了数字模型的形态特征和路径类型，实现了高质量、高连续性的自适应打印路径。同时，通过实验测量水泥复合材料的挤出工艺参数之间的关系，随后将其纳入路径设计程序，通过在过程中控制挤出参数来实现零间隙打印。该方法在适应形态特征和路径类型多样性方面的优势通过一组自由形式结构得到验证，并通过实验验证了适用性。通过实验测量水泥复合材料的挤出工艺参数之间的关系，随后将其纳入路径设计程序，通过在过程中控制挤出参数来实现零间隙打印。该方法在适应形态特征和路径类型多样性方面的优势通过一组自由形式结构得到验证，并通过实验验证了适用性。通过实验测量水泥复合材料的挤出工艺参数之间的关系，随后将其纳入路径设计程序，通过在过程中控制挤出参数来实现零间隙打印。该方法在适应形态特征和路径类型多样性方面的优势通过一组自由形式结构得到验证，并通过实验验证了适用性。