International Research Journal of Engineering and Technology (IRJET) Volume: 03 Issue: 07 | July-2016
www.irjet.net
e-ISSN: 2395 -0056 p-ISSN: 2395-0072
EXPERIMENTAL INVESTIGATION OF CONCRETE ON USING MICRO SILICA AND SYNTHETIC FIBERS K.YAGNA SRI1 1P.G 2
Dr.K.RAJASEKHAR2
student, civil engineering, KMMITS Engineering college ,Tirupati, Andrapradesh.
Head of Civil Engineering department Siddartha Educational Group of Institutions, Tirupati.
Abstract :It was observed and noted that since decade of years that the cost of the building materials is currently so high that to do meaning full construction. Industrial by-products can be used in concrete as admixtures in cement and raw materials in cement clinkers or as coarse aggregates in concrete. ordinary Portland cement(OPC) is acknowledged as the major construction material throughout the world .the most important material are fly ash ,silica fume, non-silica and metakaolin. whose using cement and concrete is thus likely to be significant development in development of concrete technology in the coming few decades This study is to compare mechanical properties and as well as fresh concrete properties of concrete containing silica fume. fibrillated fiber and ordinary Portland cement. The aim of the study is to enable the evaluation of the suitability of mechanical properties. Concrete mixes will be prepared with Portland cement with the addition of silica fume and fiber. Key words : silica fume , fiber, concrete, compressive strength, aggregates etc‌
1.INTRODUCTION concrete is considered as sturdy and solid material. Strengthened concrete is a standout amongst the most well known materials utilized for development around the globe .Reinforced concrete is presented to decay in a few areas particularly in beach front locales. There for scientists around the globe are coordinating their endeavors towards building up another material to defeat this issue. Innovation of huge development plants and gear's far and wide added to the expanded utilization of material. This situation prompted the utilization of added substance materials to enhance the nature of concrete. As a result of the analyses and looks into bond based solid which meets unique execution as for workability, quality and strength. Utilization of high strength concrete in development segment, has expanded because of its enhanced mechanical properties contrasted with standard concrete. High-quality solid alludes to solid that has a uniaxial compressive strength more prominent than the typical strength concrete got in a specific locale. This definition does exclude a numerical strength for compressive strength demonstrating an exchange from a typical strength to high strength concrete. In 1950's, concrete with a compressive strength of M35 MPa was considered as high strength concrete. In the 1990's solid with a Compressive strength more noteworthy than 110MPa was utilized as a part of created nations. In any case this numerical strength (110MPa) could be impressively lower contingent upon the attributes of the neighborhood materials utilized for these solid items. Report of ACI council 363 in 1979 characterized high-strength concrete as having compressive strength more than 41.37 MPa (6000 Psi). at present days high strength and superior concrete are in effect broadly utilized everywhere throughout the world. Most utilizations of high strength concrete have been in elevated structures, long traverse spans and in some uncommon applications in structures. In created nations, utilizing high strength concrete as a part of structures today would bring about both specialized and practical preferred standpoint. In high strength concrete , it is important to lessen the water/bond proportion and which all in all expands the concrete substance. To overcome low workability issue, various types of pozzolanic mineral admixtures (flyash, rice husk fiery remains, metakaoline, and so on and substance admixtures are utilized to accomplish the required workability. In the present test examination, the mechanical and durable properties of concrete of evaluations M25, at 28 and 56 ,90days trademark quality with various supplanting levels of concrete with silica sfume and manufactured fiber are considered.
Š 2016, IRJET
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