http://www.iaeme.com/IJCIET/index.asp 105 editor@iaeme.com International Journal of Civil Engineering and Technology (IJCIET) Volume 9, Issue 7, July 2018, pp. 105–111, Article ID: IJCIET_09_07_010 Available online at http://www.iaeme.com/ijciet/issues.asp?JType=IJCIET&VType=9&IType=7 ISSN Print: 0976-6308 and ISSN Online: 0976-6316 © IAEME Publication Scopus Indexed INFLUENCE OF METAKAOLIN IN CONCRETE AS PARTIAL REPLACEMENT OF CEMENT Venu Malagavelli, Srinivas Angadi and J S R Prasad Department of Civil Engineering, Institute of Aeronautical Engineering, Dundigal, Hyderabad, India Subodh Joshi Department of Civil Engineering, Swinburne University of Technology, Australia ABSTRACT Concrete is a basic material for the construction industry. Due to infrastructure development in the developing countries, consumption of concrete is very high. The consumption of cement is also very high to meet the requirements. So there is a need to look after the supplementary / alternative materials for the cement, fine aggregate and coarse aggregate. The present work aims to look after the supplementary materials in the concrete. In this paper, supplementary materials like metakaolin has been used in the concrete. Concrete having compressive strength 35 MPa is used in the experimental investigation. Mechanical properties like compressive strength, split tensile strength and flexural strengths are compared with modified concrete. Apart from that, the modified concrete has been evaluated using non-destructive tests like rebound hammer and ultrasonic pulse velocity. Also a relationship developed between the compressive strength and non-destructive tests. Based on the results, the performance of modified concrete is better than the normal concrete. Key words: Supplementary Materials, Concrete, Non – Destructive test, Compressive Strength, Split Tensile Strength, Flexural Strength, Rebound hammer, Ultrasonic Pulse Velocity. Cite this Article: Venu Malagavelli, Srinivas Angadi, J S R Prasad and Subodh Joshi, Influence of Metakaolin in Concrete as Partial Replacement of Cement, International Journal of Civil Engineering and Technology, 9(7), 2018, pp. 105–111. http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=9&IType=7 1. INTRODUCTION In the today’s world concrete plays an important role in the construction works like dams, buildings, roads etc. It is made when cement, aggregates and water are mixed. These additives are natural, but the constant use of natural additives has led to exhausting of the natural sources and this will affect the global warming also. Thus the use of alternative / supplementary materials for both cement and aggregate is a step towards solving part of the