Strength Investigation of Fly Ash Based Concrete Waste Steel Fibre and Polypropylene Fibre as Reinforcing Materials

Autor: G. Sangeetha, A. Srinivas, G. Sahithi, G. Swamy Yadav, A. Siva Krishna, N. Prabhanjan
Rok vydání: 2019
Předmět:
Zdroj: Learning and Analytics in Intelligent Systems ISBN: 9783030243135
Popis: The improper management of waste steel fibres causes a huge environmental damage. Proper utilization of these waste steel fibres can be done in civil engineering. Concrete obtained by adding these fibres is considered to show a good mechanical improvement of brittle matrix, moreover it is a promising candidate for both structural and non-structural applications. In the present work, as a continuation of research already performed in this field by the other authors, the post cracking performances of FRC (fibre reinforced concrete) were evaluated by means tests on flexural elements and slabs. All fresh and hardened concrete properties are estimated experimentally. By the means of flexural test the post-cracking behavior of SFRC is obtained. These specimens showed a good energy absorption and good residual strength after cracking. Moreover, cracks have an important role in concrete structures as they are the permeable components and have high risk of corrosion. Cracks make the structure aesthetically unacceptable and make structure weak. Cracks are considered to be neither harmful to structure nor affects its serviceability if they are in limited width. Hence it is important that crack width must be less and this is achieved by adding polypropylene fibres to concrete.
Databáze: OpenAIRE