Composite technologiesResearches

Mechanical behavior of basalt fibers in a basalt-UP composite

With the increasing interest in sustainable solutions in material design in the last decade, research on natural materials (animal, vegetal or mineral) has increased at a rapid pace. Of these materials, Basalt Fibers for composite construction provide an interesting set of mechanical properties, equal or above to those of Glass Fibers, with advantages in terms of cost effectiveness and production to vegetable based Natural Fibers.

The main activity of Global Basalt Engineering LLC is creation of effective productions on release of continuous basalt fiber (СBF) with technologies of the last generation and composites on the basis of СBF (Basalt Fiber-Reinforced Polymer Composites as BFRP).

Basalt fibers offer some advantages versus current materials, it is fireproof, requires no material addition, has better mechanical properties than most types of E-Glass, and it is cheaper than Carbon Fiber. This paper studies the mechanical properties of a Basalt Fiber composite in an Unsaturated Polyester matrix produced by Resin Transfer Molding (RTM), with the composites subjected to tensile, compression, shear and flexural tests.

The results aligned with the predicted values by using the mixing rule, albeit with a high coefficient of variation, which microscopic analysis confirmed to arise from production issues with RTM.

B. Soares, R. Preto, L. Sousa, L. Reisa,
Instituto de Engenharia Mecânica (IdMEC) Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisbon, Portugal

Part of special issue: XV Portuguese Conference on Fracture, PCF 2016, 10-12 February 2016, Paco de Arcos, Portugal
Open Access funded by European Structural Integrity Society



Companies: Mechanical Properties

Countries: Portugal

Industries: Construction, General society

Technologies: RTM

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