M. Venkata Rao. Int. Journal of Engineering Research and Application www.ijera.com ISSN : 2248-9622, Vol. 6, Issue 10, ( Part -1) October 2016, pp.39-44 www.ijera.com 39 | Page Strength Characteristics of Concrete with Partial Replacement of Coarse Aggregate By Laterite Stone and Fine Aggregate by Quarry Dust M. Venkata Rao*, V. Siva Rama Raju** *(Asst Professor, Department of civil engineering,SRKR engineering college , Bhimavaram-534204) ** (Professor, Department of civil engineering, SRKR engineering college , Bhimavaram-534204) ABSTRACT This paper presents the results of concrete mix with partial replacement of fine aggregate by quarry dust and simultaneous partial replacement of coarse aggregate by laterite stone aggregate respectively on compressive strength, split tensile strength, flexural strength and workability of concrete. Concrete mixes containing 0%, 10%, 20%, 25 % and 30%, replacement (by weight) of fine aggregate with quarry dust and simultaneously 25% replacement of coarse aggregate (by weight) with laterite stone were casted in lab and checked for compressive strength, split tensile strength ,flexure strength and workability .This replacement results in making the concrete more economically available. Keywords: Compressive strength, Flexural strength, Split tensile strength, quarry dust, workability I. INTRODUCTION Concrete is the most widely used composite material today. The constituents of concrete are coarse aggregate, fine aggregate, binding material and water. Rapid increase in construction activities leads to acute shortage of conventional construction materials. It is conventional that sand is being used as fine aggregate in concrete. For the past few years, the escalation in cost of sand due to administrative restrictions in India, demands comparatively greater cost at around two to three times the cost for crusher waste even in places where river sand is available nearby. The function of the fine aggregate is to assist in producing workability and uniformity in the mixture. The river deposits are the most common source of fine aggregate. So there are great demands within the construction industries for river sand as fine aggregate used in the production of concrete. This has created a very difficult situation, also there is great fear from environmentalist and ecologist that in the future there may be scarcity of river sand and the environment and the ecology will be distorted. Hence, the need to find materials which are affordable and available to partially or totally replaced river sand in the production of concrete. Hence we are forced to think of alternative materials. The Quarry dust may be used in the place of river sand fully or partly. Similarly coarse aggregate resources like granite quarries are also degrading. As a result of which use of coarse aggregate become uneconomical. So there is a necessity to think about an alternative for HBG metal in concrete preparation. Based on observations made from the previous investigations, laterite stone is one of the best replacements for HBG metal.100% replacement of laterite stone is undesirable. But partial replacement of laterite stone can be done up to 30 %, [1]. Laterite stone is the most abundant material in some of the hot and wet tropical areas. So by using this as a replacing material we can reduce the cost of construction. The climate change due to global warming is one of the greatest environmental issues we face now. In order to reduce the amount of green house gases, an attempt has been made to reuse the waste materials along with concrete in construction industries. In recent years, attempts have been made to increase the utilization of fly ash, quarry dust, granite and construction and demolition debris to partially replace the use of fine aggregate and coarse aggregate in concrete are gathering momentum. II. MATERIALS To study the performance of fine aggregate in partial replacement with quarry dust and also the performance of coarse aggregate in partial replacement with laterite stone as concrete. Cement - Ordinary Portland cement of grade 53 was collected from local market. The cement procured was tested for physical requirements in accordance with IS: 12269-1987.Such as compressive strength, specific gravity, setting time etc. The details are given below table-1 RESEARCH ARTICLE OPEN ACCESS