Abstract: Construction of high rise buildings and sky scrapers leads to the obstruction of natural light in buildings. Due to this problem, use of artificial light has increased in large amount. Thus, it becomes necessary to reduce artificial light consumption in structure. This leads to the introduction of innovative concrete, Transparent concrete. Transparent concrete is fiber reinforced concrete which is used for aesthetical application by inserting the optical fibers in concrete. Both natural as well as artificial light passes through the transparent concrete due to optical fibers. The study is not only constrained with the decorative purpose but the effect of fiber application in strength aspect is also discussed. Load carrying capacity of transparent concrete increases when fibers are arranged in different layers and also various pattern can be created to make the concrete decorative. This concrete can be used in interiors of hall, lobby and ceiling to glow in dark by external lighting source and in day time it glows by the light transmission from natural resources. This paper presents the study on addition of waste glass with optical fiber in transparent concrete. Key words: Transparent concrete, Optical fiber, Waste glass. INTRODUCTION Concrete plays a very vital role in construction and has been used since roman times for development of infrastructure and housing. Basic components of concrete have not yet changed. Composition of dry mix consists mainly of three ingredients i.e., coarse aggregates, which consists of larger pieces of material like stones or gravel, fine aggregates, consisting of smaller particles such as sand, cement, a very fine material powder that holds the mix together when water is added. Due to rapid urbanization in 1960, concrete was often misconceived and disfavored. But since that time, considerable progress has been made in concrete, not only in scientific terms but also in aesthetic terms. It is no more bulky, cold and grey material of the past; it has changed to attractive and lively. By research and innovation, newly established concrete has been designed which is more immune, light-weight, white or colored, etc. Concrete adapt almost all new challenges that appears. In 2001, the Hungarian architect Aron Losonzi invented the concept of transparent concrete at the Technical University of Budapest, and the first transparent concrete block was favorably produced by adding large amount of glass fiber into concrete in 2003, named as LiTraCon. Table 1: Properties of Transparent concrete blocks by Litracon company: Product Litracon-Light Transmitting Concrete Ingredients 96% concrete, 4% optical fibre Density 2100-2400 kg/m 2 Block size 600mm*300mm Thickness 25-500mm Compressive strength 50 N/mm 2 Tensile strength 7 N/mm 2 The transparent concrete mainly concentrates on transparency and its aim is to attain the artistic finish and to generate the green technology. Transparent concrete is mainly “the mixture of optical fibers and fine concrete”. Nowadays, green building mainly focus on saving energy with indoor thermal systems. Therefore, it is important to introduce a new working material to serve the purpose of the structure in terms of safety (such as damage detection, fire warning), protection of environment, energy saving and artistic modeling. Nowadays, the space between buildings is reduced due to globalization and the construction of high-rise buildings, this leads to increase in the use of non- renewable energy sources, thus, there is a requirement of new construction technique like green building and indoor thermal system. Translucent concrete (Transparent concrete) is an innovative concrete which is dissimilar from normal concrete. Transparent concrete permits light to pass through it and are light-weight as compared to normal concrete. The main aim of transparent concrete is to use sunlight as source of light in spite of using electrical energy in order to minimize the use of non-renewable sources. This technique results in to energy saving. Optical fibers are a detecting or transmission element, to reduce the use of non-natural light, the normal concrete is swapped by translucent concrete, which has natural lighting and art design. By introducing the concrete with optical glass fibers, light travels from outside in or inside out. Transparent concrete has the same strength as regular concrete and will continue to transmit light through walls up to twenty meters (twenty-two feet) thick. The expectation is that the new material will remodel the interior of concrete buildings by sensing them feel light and airy rather than dark and heavy. Critical Study on Transparent Concrete. Riya Gite 1 , Shilpa Kewate 2 1 P.G.Student, Civil Engineering Department, Saraswati College of Engineering, Maharashtra, India, riyagite56@gmail.com 2 Assoc. Professor, Civil Engineering Department, Saraswati College of Engineering, Maharashtra, India, shilpa.kewate@yahoo.com International Journal of Scientific & Engineering Research, Volume 8, Issue 3, March-2017 ISSN 2229-5518 276 IJSER © 2017 http://www.ijser.org IJSER