Bibliographic citations
Lavarello, S., Tello, J. (2024). Propuesta de morteros especiales a reología modificada para la construcción de viviendas con el sistema de impresión 3D en la ciudad de Lima Metropolitana [Tesis, Universidad Peruana de Ciencias Aplicadas (UPC)]. http://hdl.handle.net/10757/673188
Lavarello, S., Tello, J. Propuesta de morteros especiales a reología modificada para la construcción de viviendas con el sistema de impresión 3D en la ciudad de Lima Metropolitana [Tesis]. PE: Universidad Peruana de Ciencias Aplicadas (UPC); 2024. http://hdl.handle.net/10757/673188
@misc{renati/1297783,
title = "Propuesta de morteros especiales a reología modificada para la construcción de viviendas con el sistema de impresión 3D en la ciudad de Lima Metropolitana",
author = "Tello Diaz, Jose Daniel",
publisher = "Universidad Peruana de Ciencias Aplicadas (UPC)",
year = "2024"
}
During the last few years, automation technologies have been developed for the construction of buildings, one of these is the 3D printing system for concrete or mortar by means of which houses have been built in short periods of time through the development of a special mixture with rheological characteristics. In Peru, the use of this technology has not yet been implemented due to the lack of consolidated technology, equipment and mix designs for this purpose. In consideration, in Metropolitan Lima, the construction of buildings under a time and cost saving construction system would be achieved through the application of the 3D mortar printing system. For this, it is required that such mixture has the requirements of rheological properties such as static yield stress and fluidity. It is because of this that in the present study an investigation of mortar designs for application in the 3D printing system is carried out. Sixteen mortar mixtures were elaborated with Portland cement Type I, 10 of them with the incorporation of micro silica and limestone filler; both at 5%, 7.5%, 10%, 12.5% and 15% in replacement of cement. The rheological properties of flowability, constructability by means of static yield stress, setting time and, as a property in the hardened state, compressive strength was evaluated for the selection of the optimum designs. Finally, a comparative cost-benefit analysis of the optimum mixes versus conventional concrete f'c=210 kg/cm2 was carried out to select the final optimum design. The results indicate that the mortar designs with mineral additions in the fresh state increase the fluidity and static yield stress over time, as well as improving the initial and final setting time. In the hardened state, the incorporation of micro silica favored the increase of compressive strength while the limestone filler obtained similar results. Finally, a cost-benefit analysis of the optimal designs applied to the construction of 1 m2 of concrete wall in a house was carried out, obtaining a cost in the 3D printing system of S/. 242.47/m2, which is 67.77 % less expensive than the conventional system.
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