Development and Characterization of Innovative Hemp–Gypsum Composites for Application in the Building Industry
Source abstract
Abstract
At present, the development of new eco-friendly building materials for the production of lightweight partitions has become a challenge in order to advance towards the industrialization of the building sector. This work aims to design, characterize, and analyze the possibilities of applying innovative ecological gypsum composites lightened with hemp. To achieve this, samples have been prepared with partial replacement of 15% and 30% in volume of the original gypsum material by adding hemp both in the form of powder and fiber. The results show how the replacement of 15% of gypsum by hemp fiber with a length between 8 and 12 mm improves the flexural strength of the composites. Likewise, all the dosages prepared for this study have met the minimum requirements for mechanical strength required by current regulations, while also improving the water resistance behavior of gypsum composites. However, the main advantage derived from the use of these hemp-lightened gypsum-based materials lies in their reduced thermal conductivity, being up to 50% lower than that obtained for traditional materials. These results suggest the possible application of these materials to produce prefabricated boards and panels for a more sustainable construction.
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Research context
OpenAlex topics: Natural Fiber Reinforced Composites · Innovations in Concrete and Construction Materials · Masonry and Concrete Structural Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Departamento de Tecnología de la Edificación, Escuela Técnica Superior de Edificación, Avda. Juan de Herrera, n° 6, 28040 Madrid, Spain
Escuela Técnica Superior de Ingeniería Aeronáutica y del Espacio, Plaza del Cardenal Cisneros, n° 3, 28040 Madrid, Spain
ISISE, ARISE, Department of Civil Engineering, University of Coimbra, 3030-788 Coimbra, Portugal
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