About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Rustem Kh. Mukhametrakhimov, candidate of technical sciences, associate professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation. Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Albert R. Galautdinov, candidate of technical sciences, associate professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Liliya V. Ziganshina, candidate of technical sciences, senior researcher, Kazan State University of Architecture and Engineering, Kazan, Russian Federation. E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it |
| Title of the article | Improving additive manufacturing for construction by increasing layer adhesion during long breaks in 3D printing |
| Abstract. | Problem statement. A significant disadvantage of additive manufacturing for construction is the possibility of the formation of “cold” joint between layers at significant time intervals during the printing process, which leads to a significant decrease in the strength and durability of finished products. The goal of the research is to develop a technological solution to improve additive construction production by increasing the adhesion of layers during long breaks in the 3D concrete printing. The objectives are to study the influence of a multifunctional additive for the transition layer in 3D printing technology on the required duration of a technological break and to identify the dependence of the adhesion strength of layers of fine-grained concrete of the basic composition with the transition layer on the duration of hardening of the samples and the type of multifunctional complex additive. Results. It has been established that the installation of a transition layer from a modified concrete mixture with a slight decrease in the adhesion strength of the layers (1.5-9%) allows for long technological breaks in the range of 3-12 hours. A technological solution has been developed in additive construction production using the layer-by-layer extrusion method, based on the device transition layer of fine-grained concrete mixtures modified with multifunctional complex additives, laid before a technological break, which allows you to specifically regulate its duration in a wide time interval (3-12 hours) while ensuring high quality of finished construction products. Conclusions. The significance of the results obtained for the construction industry lies in the improvement of additive manufacturing for construction, which makes it possible to carry out construction 3D concrete printing with technological breaks without compromising the quality of the resulting construction products. |
| Keywords. | additive manufacturing for construction, 3D concrete printing, technological break, cold joint, adhesion, concrete, quality |
| For citations: | Mukhametrakhimov R.Kh., Galautdinov A.R., Ziganshina L.V. Improving additive manufacturing for construction by increasing layer adhesion during long breaks in 3D printing // News KSUAE, 2024, № 1(67), p. 127-134, DOI: 10.48612/NewsKSUAE/67.13, EDN: ULXEQB |
