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sjes-10141

Mechanical Properties of Normal Strength Concrete Containing Different Types of Waste Material as Coarse Aggregate Replacement

1,a Parween Lateef Aziz , 2,Mohamed Rauof Abdulkadir

a,b University of Sulaimani, College of Engineering, Civil Engineering Department

Received 10 June 2020 Accepted 27 August 2020,   Available online 30 December 2020

ABSTRACT


In this study, the effect of different types of waste materials on the mechanical properties of normal strength concrete was investigated. Three types of waste material crumbed rubber, granular plastic, and crushed brick with different percentage up to 15% ( by weight of coarse aggregate) were used. The effect of waste material on the compressive strength, splitting tensile strength, and static elastic modulus of hardened concrete for 28 days of curing with constant w/c= 0.45 were studied. The maximum loss in concrete compressive strength was recorded to be 54.95%, 50.31%, and 20.41% for concrete mix with 15% crumbed rubber and plastic aggregate and 5% crushed brick particles. Maximum reduction in splitting tensile strength noticed to be 65%, 43.15%, and 13.59% for 15% replacement of crumbed rubber, granular plastic, and crushed brick respectively. The maximum loss in static elastic modulus was found to be 48.29%, 27.14, and 11.23% for concrete mix with 15% crumbed rubber, granular plastic, and 5% crushed brick. From test results it is concluded that up to 15% waste material can be safely used to produce this type of recycled concrete.

KEYWORDS 

Crushed Brick , Crumbed Rubber , Granular Plastic , Mechanical Properties Waste Material.

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