Valorization of Polypropylene Fibers to Improve the Physical and Mechanical Properties of Concrete and Mortars

Abstract Green construction, also called sustainable construction or green construction, offers various possibilities in order to reduce the ecological impact of buildings. The use of factory waste in construction is a means of recovering this waste and also a method of protecting the environment, more precisely against the harmful effects on flora and fauna. In this work, we study the reuse and recovery of waste polypropylene fibers which are wastes from factories manufacturing furniture products. The objective of this work is the valuation of polypropylene fibers in the manufacture of concretes and mortars. The aim is to investigate the impact of adding polypropylene fibers to the concrete and mortar in order to improve the mechanical properties. In order to measure the compressive and tensile strengths of concrete at ages of 3 days, 7 days and 28 days and the characteristics of adhesion of the mortar. The results obtained are compared with an ordinary concrete and mortar. According to this study an optimal addition of the polypropylene fibers allows an increase in the mechanical characteristics of the concretes and the mortars. This increase can reach 12% of the compressive strength at the age of 28 days. In order to enhance this work, we will try to compare the results with thorough research that has been carried out.