Concrete is the most widely used material due to its advantages of convenient materials, low price, easy molding, good fire resistance and large reserves. It is widely used in the construction of bridges, tunnels, industrial and civil buildings, and highways. However, the further development and application of concrete is limited due to its heavy weight, low tensile strength and poor toughness, and fiber reinforced concrete emerges as the times require.
Fiber reinforced concrete mainly adds discontinuous short fibers or continuous long fibers as auxiliary materials on the basis of concrete to increase the toughness of concrete. The addition of fibers can effectively inhibit the generation and development of concrete cracks, thereby improving the crack resistance and toughness of concrete, and also improve the compressive performance to a certain extent. To a certain extent, the performance of traditional concrete has been improved in all aspects, so the application of fiber reinforced concrete is more and more extensive.
Tenabrix Polypropylene fiber is a synthetic organic fiber, known as the “secondary reinforcement” of concrete. It is added to concrete (or mortar) to effectively control the plastic shrinkage, drying shrinkage, temperature change and other factors of concrete (or mortar). It can prevent and inhibit the formation and development of cracks caused by micro-cracks, and can be widely used in industrial & civil construction, water conservancy projects, and road and bridge projects.Many scholars have also carried out research on it with different contents and degrees.
For example, the anti-cracking performance of polypropylene fiber on cement-stabilized construction waste was studied through drying shrinkage test and temperature shrinkage test. The coefficient of thermal contraction is reduced；Through compressive, shear test and SEM and other methods, it is shown that fiber is an important factor affecting compressive and shear strength, and fiber mainly bridges cracks to improve strength；The shear bearing capacity of polypropylene fiber reinforced concrete beams is studied. The results show that the fibers between concrete cracks can delay the development of cracks, reduce the inclination angle of oblique cracks, and improve the shear performance of components. Compared with ordinary concrete beams, polypropylene fiber reinforced concrete beams have more Good load carrying capacity, stiffness and shear ductility.
The research and application of fiber in concrete has been very extensive, from the basic mechanical properties of the test block (compressive strength, tensile strength, flexural strength) to the research on work performance and durability, and then to the research on component beams and columns, The study of fibers is found in almost all aspects of concrete. The addition of fiber mainly plays the role of increasing the toughness of concrete, increasing the ductility of concrete, improving the performance of concrete, enhancing the bearing capacity of concrete and changing the failure state of components. Especially the application of fiber in high-performance concrete can effectively improve the performance of high-performance concrete, increase the application breadth of fiber-reinforced concrete, and gradually realize the utilization of resources. Fiber-reinforced concrete has a good application prospect.
TenaBrix® provides solutions for concrete reinforcement. We are a professional, leading manufacturer of over 20 types of Synthetic Micro , Synthetic Macro fibers for the Fiber Reinforced Concrete (FRC) solution. Our concrete-fiber high performance has been proven by ASTM, CABO, ICBO, UL and other relevant Compliances.
Our engineers are available to recommend the best innovative solution including fiber type, dosage rate, mix design, finishing methods, etc. We can also provide you with customized specifications and packaging to fit your projects with the support of our strong R&D capabilities and experienced technical experts.
For more information, please contact our a Tenabrix representative.