Research Article Effect of Quarry Waste on Self-Compacting Concrete Containing Binary Cementitious Blends of Fly Ash and Cement Baboo Rai, 1 Sanjay Kumar, 1 and Kumar Satish 2 1 Department of Civil Engineering, National Institute of Technology Patna, Bihar, India 2 Department of Civil Engineering, Birla Institute of Technology Patna, Bihar, India Correspondence should be addressed to Baboo Rai; baboo.rai@gmail.com Received 12 May 2016; Revised 7 June 2016; Accepted 20 June 2016 Academic Editor: Giorgio Pia Copyright © 2016 Baboo Rai et al. Tis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Tis paper presents the results of the experimental work conducted to study the efect of quarry waste on self-compacting concrete containing binary cementitious blends of fy ash and cement. For this purpose nine trial mixes were prepared, where the percentage replacement of river sand by quarry waste was 0%, 10%, 20%, 30%, 40%, 50%, 70%, and 100% to study the fowability characteristics of SCC. In all, 108 cube samples and 54 cylindrical samples were cast to study the strength parameters of SCC with and without quarry waste. Te water to binder ratio was maintained at 0.36% while the dose of chemical admixture was 2.2% by weight of cement. For all trial mixes the fy ash percentage replacement to cement was kept constant at 30%. Based on the standard fowability test a visual stability index has been provided to all the trial mixes. Quarry waste replacement showed the desirable results that can suggest the usage in self-compacting concrete as well as in normally vibrated concrete. 1. Introduction Concrete that fows and settles due to its own weight without segregation and bleeding is called self-compacting concrete (SCC) [1]. According to Okamura and Ouchi [1, 2] SCC has several advantages over normally vibrated conventional concrete. It can fow with ease in congested reinforcement at beam column junctions. SCC improves the durability of concrete structures. In SCC, no vibration is required for the compaction. It fows like “honey” and afer placing it has a very smooth surface. Te visual stability index (VSI) [3] of SCC can be defned by four key parameters: fowability, passing ability, viscosity, and segregation resistance. In recent years, SCC has gained wider applications as it reduces the time period of construction. Furthermore, with the develop- ment in the feld of superplasticizers technology this concrete type has become widespread all over the world [4–6]. In recent times quarry wastes as fne aggregate have gained attention as concreting material to be used in con- struction [7]. Limited research has been conducted in the area of fowing concrete (SCC) incorporating quarry waste as a partial or full replacement to river sand. Using quarry waste in SCC is expected to provide signifcant economic benefts to concrete producers. Ho et al. [8] utilized quarry waste in SCC as a partial replacement of cementing material and reported that the use of higher water cement ratio demands high cement content for a required strength. Khatib [9] concluded that when fne recycled aggregates were used as a partial replacement to natural fne aggregates in concrete and when the free water/cement ratio was kept constant for all the mixes, the 28-day strength of the concrete developed at a slower rate as compared to reference mix. Kou and Poon [10] studied the fresh and hardened properties of SCC with recycled concrete aggregates as both coarse and fne aggregates states. Tree sets of SCC mixes with partial replacement of recycled fne aggregate with river sand were prepared and the percentage of coarse recycled aggregates was fxed at 100%. Te cement content was kept constant for all concrete mixtures. Tey concluded that the compressive strength of crushed fne sand concrete decreased when compared with the control mixes at 75 and 100% replacement levels and further concluded that the slump decreases with an increase in crushed fne sand content. Evangelista and de Brito 2010 [11] indicated that the use of fne recycled concrete aggregates up to 30% replacement ratios will have minimal efect on the mechanical properties of concrete. Celik and Hindawi Publishing Corporation Advances in Materials Science and Engineering Volume 2016, Article ID 1326960, 11 pages http://dx.doi.org/10.1155/2016/1326960