Effect of Local Coarse Aggregate Type on Concrete Mechanical Properties in Bangladesh
Faruk Patowary1, Raqib Al Mahmood2
1Faruk Patowary*, Department of Civil Engineering, Ahsanullah University of Science and Technology, Dhaka-1208, Bangladesh.
2Raqib Al Mahmood, Department of Civil Engineering, Ahsanullah University of Science and Technology, Dhaka-1208, Bangladesh. 

Manuscript received on 30 March 2022. | Revised Manuscript received on 02 April 2022. | Manuscript published on 30 April 2022. | PP: 104-107 | Volume-11 Issue-4, April 2022. | Retrieval Number: 100.1/ijeat.D34900411422 | DOI: 10.35940/ijeat.D3490.0411422
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Abstract: Different types of natural coarse aggregate are available in the local market of Bangladesh, which are primarily imported from several regions of the neighboring country, India. This paper aims to find the best locally available natural coarse aggregate for concrete preparation in terms of mechanical strength. It also reports on the results of an experiment investigation that looked at the effects of six different types of natural coarse aggregate, namely Burimari, Bhurungamari, Bholaganj, Tamabil, Jaflong and Dinajpur Hili (Indian Black Stone), available in the local market of Bangladesh on the mechanical properties of concrete. Concrete cylindrical specimens of 100mm diameter were prepared by each type of natural coarse aggregate keeping other ingredients constant. Concrete mix ratio and water/cement ratio adopted for the study were 1:1.5:3 and 0.48, respectively. The Compressive strength, splitting tensile strength and modulus of elasticity were investigated at 7, 14 and 28 days of curing age. The obtained results showed Dinajpur Hili (Indian Black Stone) is most suitable for concreting having distinguished variation in compressive strength, splitting tensile strength and modulus of elasticity compared to other types of natural coarse aggregates used in the research.
Keywords: Concrete, Local Market, Mechanical Properties, Natural Coarse Aggregate.
Scope of the Article: Properties and Mechanics of Concrete.