macrofiberreinforced

Macrofiber-reinforced refers to a composite material where larger, discrete fibers are incorporated into a matrix, typically concrete or mortar, to enhance its mechanical properties. These fibers are distinguishable by their size, often measured in millimeters or centimeters in length and diameter, setting them apart from microfibers which are much smaller. The primary function of macrofibers is to improve the tensile strength, flexural strength, and toughness of the matrix. They achieve this by bridging cracks that form within the material, preventing them from propagating and leading to failure.

The types of macrofibers used can vary, including synthetic polymers like polypropylene and polyvinyl alcohol, as well as steel and glass. The selection of fiber type, aspect ratio (length to diameter), and volume fraction is crucial and depends on the specific application and desired performance characteristics. Macrofiber-reinforced concrete is commonly employed in structural applications such as slabs on ground, precast elements, shotcrete, and pavements, where increased ductility and impact resistance are beneficial. The presence of macrofibers can also reduce or eliminate the need for traditional steel reinforcement in certain non-structural or semi-structural applications, offering potential cost and construction time savings.