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The Effect of Aggregate Gradation On Concrete Fracture Energy Using The Work of Fracture Method
Fidi (a), Resmi Bestari Muin (a), Agnes Hanna Patty (b)

a)Universtas Mercu Buana, Jl. Meruya Selatan No.1, Meruya Selatan, Kec. Kembangan, DKI Jakarta 11650

b)Universitas Katoik Widya karya Malang, Jl. Bondowoso 2-Malang No.2, Gading Kasri, Kec. Klojen, Kota Malang, Jawa Timur 65115.


Abstract

The micro-cracks that commonly occur in concrete structures are a potential source of crack propagation which leads to the possibility of catastrophic failure. Concrete cracks that occur propagating mainly along the interface zone that significantly conditioned by aggregate characteristics. Aggregate characteristics as concrete fillers have a significant role as a strain energy release medium known as fracture energy. This research is using an experimental investigation about the fracture characteristics of concrete using different gradations with a maximum diameter of 25 mm and 20 mm. The experiment includes a compressive strength test and a fracture parameter test. Three-point bend test was selected based on RILEM recommendations to calculate fracture parameters. The result has shown that the aggregate gradations used in concrete mixtures should take into account the effect on compressive strength and total fracture energy.

Keywords: Aggregate grading, compressive strength, fracture energy, stress intensity factor

Topic: Civil Engineering

Link: https://ifory.id/abstract/EBj7W6qp2rvT

Conference: The Third International Conference on Innovation in Engineering and Vocational Education (ICIEVE 2019)

Plain Format | Corresponding Author (Fidi Lee)

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