An Experimental Investigation on Mode-II Fracture of Light Weight Pumice Aggregate Concrete
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2014, Vol 4, Issue 12
Abstract
Shear strength is a property of major significance for wide range of civil engineering materials and structures. Shear and punching shear failures particularly in deep beams in corbels and in concrete flat slabs are considered to be more critical and catastrophic than other types of failures. To study such failures the past literature suggests best suited geometry as Double Centered Notched (DCN) specimen geometry proposed by Sri Prakash Desai and Sri Bhaskar Desai. In the present scenario light weight aggregate has been the subject of extensive research which affects the strength properties of cement concrete. Light weight aggregate concrete has become more popular in recent advancements owing to the tremendous advantages it offers over the conventional concrete but at the same time light in weight and strong enough to be used for structural purposes. In this present experimental investigation an attempt is made to study the Mode-II fracture properties of natural light weight aggregate concrete, such as pumice aggregate (which is volcanic based and imported from Turkey) concrete. By varying the percentage of light weight pumice aggregate in concrete replacing the conventional granite aggregate in percentages like 0%, 25%, 50%, 75% and 100% by volume of concrete, the mode-II fracture property such as in plane shear strength is studied. Finally an analysis is carried out regarding Mode-II fracture properties of pumice concrete and it is concluded that shear strength is decreased continuously with increase in percentage of pumice.
Authors and Affiliations
Dr. V. Bhaskar Desai , K. Mallik Arjunappa , A. Sathyam
Keywords
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