The Influence of Polypropylene Fiber on the Working Performance and Mechanical Anisotropy of 3D Printing Concrete
Source abstract
Abstract
The paper aims to clarify the influence of fiber properties on the working performance and mechanical properties of 3D printing concrete (3DPC). This paper investigates the effects of polypropylene fiber content and length on the working performance and mechanical anisotropy of 3DPC. The research results show that with the increase of polypropylene fiber content, the static yield stress, and the dynamic yield stress of 3DPC increase, the extrudability decreases. The buildability first increases and then decreases. As the length of polypropylene fiber increases, the static yield stress and dynamic yield stress increase, and the extrudability decreases. The buildability first increases and then decreases. The printability of 3DPC with 9 mm length fiber is better than that with 6 mm and 12 mm. Through the compressive strength and flexural strength tests of 3DPC, it was found that both the compressive strength and flexural strength have obvious anisotropy. The addition of fiber has a positive effect on the improvement of the compressive strength in three directions, and the flexural strength in the vertical and transverse directions is improved. Through work performance and mechanical anisotropy testing, it can provide a reference for optimizing the use of fibers in 3DPC.
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Research context
OpenAlex topics: Innovations in Concrete and Construction Materials · Additive Manufacturing and 3D Printing Technologies · Bone Tissue Engineering Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Civil Engineering, Henan Polytechnic University, No. 2001 Century Avenue, Shanyang District, Jiaozuo 454000, China.
School of Materials Science and Engineering, Henan Polytechnic University, No. 2001 Century Avenue, Shanyang District, Jiaozuo 454000, China.
References (31)
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