STUDY & ANALYSIS OF DURABILITY OF FIBER REINFORCED CONCRETE

Concrete is the premier construction material across the world and the most widely used in all types of civil engineering works, including infrastructure, low and high-rise buildings, defence installations, protection of the environment and local/domestic developments. There is a growing awareness of the advantages of Fibre Reinforcement Concrete techniques of construction all over the world. One such development of improving or modifying the brittle characteristics of concrete is by supplementing the concrete matrix with Fibre Reinforcement. In the recent times, there is a growing interest on the use of various types of Fibres in structural applications due to their light weight, low cost and sustainability. The present work shows the effects of fibres on the behaviour of plastic and hardened concrete varies depending on the concrete materials, mix proportions, fibre type and length, and quantity of fibre added. The present experimental shows the study of composite concrete with varying percentage of fibres ranging from 0.10%, 0.20%, 0.30% & 0.40% & M20 grade concrete were adopted. Sizes of beam (10*10*50 cm) were used for testing. Flexural test of the beam is carried out with different types of fiber. This material can help us to develop intelligent infrastructure with elegantly integrated sensing. The objective of present work is to use fibre as reinforcement in concrete for a better durability, workability & resistance to cracking of structure. The present work is concerned with the tensile behavior of FRC specimens (100 Beams) with 60 days of normal water curing and 60 days curing by sulphate & chloride. The bending stress is largely determined by the Fibre orientation which depends on the mixing method. FRC controls cracking and deformation under impact load much better than plain concrete. About 15 MPa bending stress found at 0.40% fibre concentration when beams were cured in plain water & about 18 MPa bending stress found at 0.40% fibre concentration when beam samples were cured in NaCl & MgSO4 mix water. As compare with other fibres such as GFRC, AFRC & SFRC, NFRC had maximum bending stress which is about 18MPa at fibre concentration of 0.40%. These sustainable improvements or modifications can be easily adopted by the common man in their regular constructions.