Experimental and microstructure study on coconut fibre reinforced self compacting concrete (CFRSCC)
- PDF / 5,329,444 Bytes
- 13 Pages / 595.276 x 790.866 pts Page_size
- 69 Downloads / 220 Views
ORIGINAL PAPER
Experimental and microstructure study on coconut fibre reinforced self compacting concrete (CFRSCC) Subramanian Shanmugapuram Vivek1 · Chandrasekaran Prabalini1 Received: 8 May 2020 / Accepted: 24 August 2020 © Springer Nature Switzerland AG 2020
Abstract In the present research, the effect of untreated and treated coconut fibres as an additive in self compacting concrete (SCC) both experimental and microstructure was investigated. The behaviour of SCC was investigated using coconut fibres under three different treatment forms were proposed. Pre-treatment changed the morphology of fibre surface, and the chemical composition of coconut fibre varied after the treatment process was evident from the microstructure analysis. The laboratory tests conducted were namely, physical properties, chemical properties, fresh properties, and mechanical characteristics. Based on the experimental investigations, the optimum amount of coconut fibre in SCC was 1%. The coconut fibres treated with gum and pozzolanic materials improved the mechanical properties of coconut fibre reinforced self-compacting concrete (CFRSCC) specimens to a greater extent. Hence it was concluded that the treatment of coconut fibre had shown improved strength characteristics of CFRSCC specimens. Keywords Coconut fibre · SCC · Fresh properties · Mechanical properties · Impact · SEM
Introduction Depletion of the natural resources and an increasing amount of agricultural wastes make us move towards the world of innovation. Choosing the right material at the right place plays a significant role. Agro-waste could be used in the construction industry if locally available. Concrete is a versatile material in the construction industry. Different types of concrete were used based on their purpose in the construction field. In the place of congested reinforcement and where the process of vibration is difficult SCC used. Fibre-reinforced SCC is a newly developing area which merges the advantages of SCC and the positive effects of fibre. Since concrete is weak in tension, the addition of fibre reduces the brittle property. Significant efforts have been taken to add different type’s fibres to make it robust, durable and economical. Artificial fibres such assteel, glass, polypropylene and carbon fibres used in the construction industry. Artificial fibres are expensive, whereas the natural fibres are readily available and inexpensive. Several types of natural fibres such as * Subramanian Shanmugapuram Vivek [email protected] 1
School of Civil Engineering, SASTRA Deemed University, Thanjavur, Tamilnadu, India
kapok, henequenl, bamboo, bagasse, vakka, palm, banana and sugarcane were available. Coconut fibre has a specific physical and mechanical property which can enhance the property of concrete. The outer shell extracted the coconut fibre; Brown and white fibres obtained from the mature and immature coconuts. Brown fibres have better physical and mechanical property than white fibres. Total coir fibre production is 2, 50,000 tonnes. Sixty per ce
Data Loading...
