Abstract
In this research created binder was adapted for 3D printer and developing process was analysed in detail. According to the research, early setting time and strength is gained due to ettringite crystal growth. Methods for controlling setting time and early hydration process were proposed. Final setting time of developed binders varied from 5 min up to more than 20 min. Density, flexural and compressive strengths were investigated and compared to ordinary Portland cement. Compressive strength of ∼1 MPa at 20 min and ∼50 MPa at 28 days can be expected of 3D concrete printed samples. Structure of developed binders was analysed with XRD, SEM and EDX methods, setting time was analysed by semi-adiabatic calorimeter. Phase composition analysis confirmed previous statement (early setting and strength is the result of intensive growth of ettringite crystals). Purposed method allows easier control of printing technology process, thus individual houses and various civil engineer structures can be constructed easier and with less malfunctions.
Sign-in/Register to access full text options 
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.
