Development of a stabilized natural fiber-reinforced earth composite for construction applications using 3D printing

G. Silva, L. Quispe, S. Kim, J. Nakamatsu, R. Aguilar

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5 Citas (Scopus)

Resumen

The application of additive manufacturing technologies to the construction industry has a wide range of advantages from the economic, social and design flexibility point of view. However, most of up to date research studies have been performed using ordinary Portland cement (OPC)-based mortars and concretes. Therefore, the objective of this article is to explore the development of an eco-friendly earth composite reinforced with natural sisal fibers and chemically stabilized with a hydraulic binder. Analysis of the workability by shear vane tests was performed on fresh earth samples to find the optimum water content in sisal fiber-reinforced earth stabilized with OPC. Afterward, the effect of the addition of OPC on the hardening process was evaluated through shear vane and Vicat needle tests from 0 to 180 min after mixing. The results indicate that water content, fiber addition and OPC replacement have a strong influence on the shear yield strength. Furthermore, the presence of chemical stabilizers as OPC accelerates the hardening process allowing a faster layer-by-layer deposition. This low cost and eco-friendly preliminary earth-based composite can be used for 3D printing applications in the construction industry.

Idioma originalInglés
Número de artículo012015
PublicaciónIOP Conference Series: Materials Science and Engineering
Volumen706
N.º1
DOI
EstadoPublicada - 25 nov. 2019
EventoInternational Conference on Development of Eco-Friendly Composite Materials Based on Geopolymer Matrix and Reinforced with Waste Fibers 2019, FIBER 2019 - Montevideo, Uruguay
Duración: 28 nov. 201929 nov. 2019

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