International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 05 Issue: 10 | Oct 2018
p-ISSN: 2395-0072
www.irjet.net
PROBABILISTIC STUDY OF COMPRESSIVE STRENGTH OF COIR FIBER REINFORCED CONCRETE Nayana B S1, Niranjan T P2, Keerthi Gowda B S3 1Assistant
Professor, Department of Civil Engineering, RYM Engineering College, Ballari, Karnataka, India 2M.Tech in Structural Engineering, VTU, Karnataka, India 3Assistant Professor, Structural Engineering, Centre for PG Studies, Mysuru, Karnataka, India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract – This study has been carried out to examine the probable range of compressive strength of the coir fiber reinforced concrete at various fiber volume fractions of 0%, 0.2%, 0.4%, 0.6%, 0.8%, 1%, 1.2%, 1.4%, 1.6% and 1.8% examined thoroughly. From this study analysis it is witnessed that the coir fiber reinforced concrete with 1.6% of fiber volume fraction has demonstrated the higher compressive strength in all the circumstances of the above mentioned cases. From the values of skewness and kurtosis obtained by simulation technique indicates that the compressive strength of coir fiber reinforced concrete at various fiber volume fractions is found to follow normal distribution. The probability range of compressive strength of coir fiber reinforced concrete with different volume fraction indicated maximum strength characteristics for 1.6% volume fraction held between 38.2 MPa to 48.8 MPa.
[2] To compute the compressive strength of coir fiber reinforced concrete by using probabilistic investigation. [3] For determination of the probability range of compressive strength of coir fiber reinforced concrete by using Monte-Carlo Technique. 3. MATERIALS AND METHODOLOGY Materials used in the Mix Design of this study are Cement, Aggregates, Coconut fibers and Water. 3.1 Cement: Cement is a binding substance in the cement concrete. This concrete is utilized for various types of building works where quality and strength are of prime significance. The OPC 53 grade concrete is used in this project.
Key Words: Compressive strength, Coir fiber reinforced concrete.
3.2 Aggregates: In the cement concrete, to give good nature of concrete aggregates is utilized as a part of two size gatherings:
1. INTRODUCTION
1) Fine aggregates: The aggregates containing particle size less than 4.75mm are called as fine aggregates.
Concrete is the furthermost broadly utilized structure material everywhere throughout the whole world. With advancements in science and innovation in construction industry, the scope of concrete as a structural material, has enlarged. Since concrete is weak in tension and flexure, most commonly, it is strengthened utilizing steel reinforcement bars. However, use of steel support is costly. In the structure of international research, a significant work is going on in the utilization of fast growing, annually sustainable, cheap agricultural crops and crop deposits as likely fiber reinforcement in concrete. Coconut fiber being the most ductile among all natural fibers and it can potential to be utilized as reinforcement substantial in concrete. The fundamental favorable circumstances of natural fibers are that they are low expense and generally accessible asset for a large number of Agricola zones. They would biodegradable, non-abrasive and there will be no distress with wellbeing and safety thought taking care of. Natural reinforced materials are eco-friendly materials by producing less green house gas emissions and pollutants.
The properties of fine aggregates are i) Specific gravity= 2.55 ii) Fineness modulus= 4.285 2) Coarse aggregates: The aggregates containing particle size more than 4.75mm are called as coarse aggregates. The properties of coarse aggregates are i) Specific gravity= 2.76 ii) Water absorption= 2% 3.3 Water: Based on the water cement ratio and amount of water content strength and other properties of concrete are dependent. IS 456-2009 code covers the requirement of concrete used in the mix design. 3.4 Coconut fiber: Coconut fiber has been utilized to upgrade concrete and mortar, and has demonstrated to enhance the compressive strength and toughness of concrete and mortar. Length of coconut fiber used in this project was 10mm. Coconut fiber being the most ductile among all natural fibers and it can potential to be used as a reinforcement material in concrete.
2. OBJECTIVES The objectives of the study are [1] To govern compressive strength of concrete with incorporation of coir fiber. Š 2018, IRJET
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