Polymer fiber materials have been widely used in the field of concrete technology due to their excellent properties. Using polymer fibers to replace traditional fibers such as steel fibers and carbon fibers in 3D printing concrete materials is an important way to reduce costs and improve material properties. The addition of polymer fiber reduces the fluidity of the concrete mixture

also endows it with good buildability

and also significantly enhances the flexural performance and toughness of the concrete. Adding different types of polymer fibers has little effect on the compressive strength of concrete. From the perspective of affecting the performance of 3D printing concrete materials

the performance and research status of 3D printing concrete materials mixed with polymer fibers were reviewed. Mainly from polyethylene (PE) fiber

polypropylene (PP) fiber

polyvinyl alcohol (PVA) fiber and other polymer fibers

the research status of the working performance

mechanical properties and durability of 3D printing concrete materials was summarized. At the same time

the bonding strength and anisotropy between concrete layers were summarized and analyzed. The problems of polymer fiber reinforced 3D printing concrete materials are put forward

and the development of polymer fibers in 3D printing concrete materials is prospected.