Abstract
3D concrete printing (3DCP) is an efficient digital construction method, and 3DCP compatible reinforcing techniques are constantly being explored. 3D printing engineered cementitious composites (3DP-ECC) play the “self-enhancement” characteristic, which is anticipated to do away with the limitations of traditional reinforcement techniques. A series of experiments were carried out to study the effect of the composite cementation system with different dosages of sulfoaluminate cement (SAC) and ordinary Portland cement (OPC) on the flowability, shape retention, rheological performance, and green strength of the fresh 3DP-ECC. The results of rheological and working performances indicate that the M3 (7.5% SAC) is of suitable open time, and excellent extrudability, buildability and shape-retention-ability behavior, all of which are desirable for 3DP-ECC applications. And a quadratic connection between the static yield stress and green strength was found. In addition, evaluation methods for extrudability and buildability are proposed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
