An Experimental Investigation of Effect of Maximum Aggregate Size on Mode-1 Fracture Parameters of Steel Fibre Reinforced Normal Strength Concrete

Authors(3) :-Ch. Niranjan Venkatesh, N. Swathi, Sk. Jain Saheb

The fracture mechanics theories promise better predictions about the life and durability of a structure in presence of cracks. Mode I crack propagation in fiber-reinforced concrete (SFRC) is simulated by a fracture mechanics approach by using Size Effect Law. The present experimental investigation consisting of tests on geometrically similar notched prismatic specimens made from plain concrete and fiber concrete with 0.5%, 1% & 1.5% of steel fibers. The MAS taken in this study are 20mm, 16mm, 10mm. The notched specimens are tested with three point bending test. Theories of fracture mechanics tend to incorporate the fracture energy (Gf) of concrete as an important property in addition to other properties of concrete like Young’s modulus (E), Cohesive Fracture Zone (Cf), Failure stress(σn) and Brittleness number (β). From the curves of P-δ, P-CMOD, β-d, σn-d the Fracture Energy parameters are determined. Different relations are established by varying percentage of steel fibres and Maximum Aggregate Size against load which are used to determine the Fracture toughness. The post peak behavior of concrete is determined by using the area under p-δ curves.

Authors and Affiliations

Ch. Niranjan Venkatesh
Department of Civil Engineering, Jogaiah Institute of Technology and Science College of Engineering, Palakollu, Andhra Pradesh, India
N. Swathi
Department of Civil Engineering, Jogaiah Institute of Technology and Science College of Engineering, Palakollu, Andhra Pradesh, India
Sk. Jain Saheb
Department of Civil Engineering, Jogaiah Institute of Technology and Science College of Engineering, Palakollu, Andhra Pradesh, India

Three point bending test, Compressive Strength, Split Tensile Strength

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Publication Details

Published in : Volume 3 | Issue 8 | November-December 2017
Date of Publication : 2017-12-31
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 533-536
Manuscript Number : IJSRSET1738169
Publisher : Technoscience Academy

Print ISSN : 2395-1990, Online ISSN : 2394-4099

Cite This Article :

Ch. Niranjan Venkatesh, N. Swathi, Sk. Jain Saheb , " An Experimental Investigation of Effect of Maximum Aggregate Size on Mode-1 Fracture Parameters of Steel Fibre Reinforced Normal Strength Concrete, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 8, pp.533-536, November-December-2017.
Journal URL : http://ijsrset.com/IJSRSET1738169

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