A BRIEF STUDY ON THE STRENGTH PROPERTIES OF MODIFIED CONCRETE USING LIGHT EXPANDABLE CLAY AGGREGATE (LECA)

S. Ramesh Reddy
Professor, Department of Civil Engineering, Brindavan Institute of Technology & science, Kurnool, A.P, India and Research Scholar, JNTUA College of Engineering, Anantapuram, A.P., India , IN

S. Lokesh Kumar
Professor, Department of Civil Engineering, Brindavan Institute of Technology & science, Kurnool, A.P, India and Research Scholar, JNTUA College of Engineering, Anantapuram, A.P., India , IN

Dr. V. Bhaskar desai
Professor, Department of Civil Engineering, Brindavan Institute of Technology & science, Kurnool, A.P, India and Research Scholar, JNTUA College of Engineering, Anantapuram, A.P., India , IN

Keywords: LECA(light weight Expandable Clay Aggregate), , compressive strength, split tensile strength, modulus of elasticity, flexure, In-plane shear strength

Abstract

One of the disadvantages of the conventional concrete is the high self weight of concrete. Many attempts have been made in the past to reduce the self weight of concrete along with increase the efficiency of concrete as a structural material. In this investigation an attempt is made to study the strength properties of modified M20 grade concrete with replacement of natural coarse aggregates with varying percentages of Light expandable clay aggregates (LECA) i.e, 25, 50, 75 and 100%. After 28 days various tests are carried out on the modified concrete i.e., compressive strength test, split tensile strength, flexural strength test, modulus of elasticity, in-plane shear strength through mode-II fracture test, and those results are compared. The results are observed to be quite satisfactory.

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