International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 02 Issue: 01 | Apr-2015 www.irjet.net p-ISSN: 2395-0072 © 2015, IRJET.NET- All Rights Reserved Page 285 Experimental Study on the Behavior of R.C.Beams and Columns with Treated Recycled Aggregate Concrete Sreejith.C.Venugopal 1 , J.Rajprasad 2 1 M.Tech, Civil Engineering Department, SRM University, Tamil Nadu, India 2 Assistant Professor [O.G], Civil Engineering Department, SRM University, Tamil Nadu, India Abstract - The paradigm of providing eco-friendly concrete is gaining impetus in the global construction industry. The dwindling resources have made the researchers to focus on sustainable development in all areas and more particularly in concrete production, due to the high rate of growth of industries and their infrastructure development, which increase the rate of consumption of concrete. The practice of recycling of demolished concrete for use in pavements and sub grades has already seen in vogue. From review of literature it is found that studies on structural element using a concrete with demolished concrete as aggregate after an effective treatment to improve its density is scarce. In this method the effective treatment has been chosen to be the one which is proved to be effective in the previous study in the same laboratory. The study is made by varying the ratios of normal (virgin) aggregate to treated recycled aggregate as 1:0 (conventional concrete), 0.5:0.5 (mixed aggregate concrete), and 0:1 (completely treated recycled aggregate concrete) for casting and testing beams and columns and testing those for their ultimate strength. Displacements are observed using dial gauges. The comparison of strength is made and it is concluded that the normal concrete produces higher strength compared to mixed and complete treated aggregate combination concrete. However, those results vary over 10-15% and hence subject experimental variation of concrete as a material, it can be concluded that both mixing of treated aggregate with normal aggregates and use of complete treated aggregates are possible solutions that can be adopted in practice. Keywords: Normal aggregates, treated recycled aggregates, mixed aggregate concrete, completely treated recycled aggregate concrete. 1. INTRODUCTION 1.2 Objective and Scope of Work The rapid growth in population has resulted in higher demand for housing to satisfy the need of the ever increasing population. An enormous increase in construction activities has resulted in an increased rate of consumption of basic materials of concrete making. This has led to shortage of conventional building materials. Hence, recycling and reuse of wastes such as building rubbles, concrete lumps etc. generated at the construction and demolition sites is currently being tried as an economic and eco-friendly alternative. Natural aggregate may be costlier in places which are away from source. If the recycled concrete is used as aggregate the cost of the construction will be controlled incase the concrete waste are available in the vicinity. In practical situations where the recycled material is not fully sufficient to meet the need of construction, an alternate of mixing virgin / normal aggregate with recycled aggregate may be chosen as an alternate or replacement. Quantification of such mixed aggregateǯs effect is a significant study towards practical use of such mixed virgin plus recycled aggregate in the preparation of concrete. 1.2 Objective and Scope of Work The objective of present work is to evaluate the behavior of continuous beams and columns made with concrete mixture having different replacement ratios. The scope of work is to evaluate the behavior of continuous beams and axially load columns made with concrete mixture having different replacement ratios.