Experimental study on the strength parameter of Quarry Dust mixed Coconut Shell Concrete adding Coconut Fibre

International Conference on Civil Engineering and Infrastructural Issues in Emerging Economies 2017

土木建筑工程;经济学

Matangulu Shrestha, Victor^1 ; Anandh, S.^1 ; Sindhu Nachiar, S.^1

Department of Civil Engineering, SRM University, Kattankulathur, India^1

关键词: Coconut fibres;    Coconut shells;    Conventional concrete;    Eco-friendly construction;    Heterogeneous mixtures;    Quarry dust;    Strength parameters;    Volumetric measurement;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/80/1/012021/pdf
DOI  :  10.1088/1755-1315/80/1/012021

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Concrete is a heterogeneous mixture constitute of cement as the main ingredient with a different mix of fine and coarse aggregate. The massive use of conventional concrete has a shortfall in its key ingredients, natural sand and coarse aggregate, due to increased industrialisation and globalisation. To overcome the shortage of material, an alternate material with similar mechanical properties and composition has to be studied, as replacement of conventional concrete. Coconut shell concrete is a prime option as replacement of key ingredients of conventional concrete as coconut is produced in massive quantity in south East Asia. Coconut shell concrete is lightweight concrete and different research is still ongoing concerning about its mix design and composition in the construction industry. Concrete is weak in tension as compared to compression, hence the fibre is used to refrain the crack in the concrete. Coconut fibre is one of many fibres which can be used in concrete. The main aim of this project is to analyse the use of natural by-products in the construction industry, make light weight concrete and eco-friendly construction. This project concerns with the comparison of the mechanical properties of coconut shell concrete and conventional concrete, replacing fine aggregate with quarry dust using coconut fibre. M25 grade of concrete was adopted and testing of concrete was done at the age of 3, 7 and 28 days. In this concrete mix, sand was replaced completely in volumetric measurement by quarry dust. The result was analysed and compared with addition of coconut fibre at varying percentage of 1%, 2%, 3%, 4% and 5%. From the test conducted, coconut shell concrete with quarry dust has the maximum value at 4% of coconut fibre while conventional concrete showed the maximum value at 2% of coconut fibre.