Heat Release during 3d-Printable Materials Setting and Hardening

Abstract:

The paper presents the experimental data on the cement effect typeon the effects of heat generation during the 3D-printable cement materials’setting and hardening. Materials made on the basis of cements CEMI 42.5 RandCEMI 52.5 R, differing in phase contentC₃Ain combination with viscosity modifiers of various compositions,have been studied. To control setting kinetics, a penetrometer test was used, hardening kinetics was evaluated by testing the samples for compressive strength after 1, 3, 7, 14, 28 days of hardening. It was found that the useof CEMI 52.5 Rhigh in compositionC₃Acauses a significant heating of the mixture already after its setting, which is not observed when using ordinary CEMI 42.5R. The combination of a highly active aluminosilicate modifier with high-strength cement causes a technologically unacceptable reduction in the setting time and open time of mixtures.

• Periodical: Materials Science Forum (Volume 1043)
• Pages: 37-42
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1043.37
• Online since: August 2021
• Authors: Galina Slavcheva*, Ekaterina Britvina, Maria Shvedova
• Keywords: 3D-build Printing, Hardening Kinetics, Heat Release, Materials, Setting Kinetics

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