Experimental analysis on concrete blocks reinforced with <em>Arundo donax</em> fibers
Canio Manniello | Giuseppe Cillis | Dina Statuto | Andrea Di Pasquale | Pietro Picuno
Over the last decades, there has been a growing attention in research and development on non-conventional building materials, such as vegetable fibers (e.g., flax; hemp; jute; etc.), to be used as eco-friendly materials in a wide range of applications in civil construction. The main reasons of this interest are related to the specific properties, price and sustainability of natural fibers, which can be considered as “green” building materials. In this article, the tensile strength of a new type of fibers extracted from stem of the Giant Reed Arundo donax L., has been investigated. These fibers, which widely grow in Mediterranean areas, but that are diffused all around the world as well, have been extracted from the outer part of the plant stem. Then, in order to have an initial idea of their influence on the mechanical properties of concrete, some experimental bricks have been prepared, with the addition of different weight percentages of this vegetal fiber. To assess the mechanical properties of these bricks, compression and tensile tests on the whole block has been performed. Hence, the differences between concrete bricks without any fiber and those reinforced with different weight percentages of natural fiber have been analyzed, then assessing their potential applications in bio-architecture.
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