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Effect of Recycled Aggregate on Mechanical and Durability Properties of Concrete

Krishan Pareek 1, Srishti Saha 2, Nayan Gupta 2, and Purnachandra Saha 2
1. Department of Green Technology for Sustainability, Nanhua University, Chiayi County, Taiwan
2. School of Civil Engineering, KIIT Deemed to be University, Bhubaneswar, India
Abstract—Recycled aggregate is a term used to describe crushed concrete, mortar, bricks or asphalt from construction debris that is reused in other building projects. Recycled aggregate is produced by crushing demolished waste to reclaim the aggregate. For the past few decades the availability of Construction and demolition waste (C&DW) has increased so much that the concrete industry has begun utilizing it therefore reducing cost of aggregates. Utilizing C&D waste in structures decreases carbon emission and helps concrete industry to expand further without ill-treating the environment. The objective is to study the mechanical properties (such as Compressive Strength, Splitting Tensile Strength and Flexural Strength) and durability properties (such as Resistance to Chloride, Carbonation and Freeze and Thaw) of concrete using reused aggregate. It is observed that the mechanical and durability behaviour of reused aggregate concrete (RAC) is secondary to that of standard concrete but with the using different admixture and different mixing approach, desired properties can be achieved. Moreover, it was seen that the improvement of the mineral admixtures to execution change of the reused aggregate are higher than that to the characteristic of natural aggregate. 

Index Terms—C&D Waste, Recycling waste materials, Strength, Durability properties

Cite: Krishan Pareek, Srishti Saha, Nayan Gupta, and Purnachandra Saha, "Effect of Recycled Aggregate on Mechanical and Durability Properties of Concrete," International Journal of Structural and Civil Engineering Research, Vol. 8, No. 2, pp. 119-125, May 2019. doi: 10.18178/ijscer.8.2.119-125
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