International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056 © 2016, IRJET | Impact Factor value: 4.45 | ISO 9001:2008 Certified Journal | Page 2045 Development of Geopolymer Bricks using Foundry Sand Preetinder Singh 1 , Dr. Sanjay K. Sharma 2 , Mrs. Himmi Gupta 3 , Er. Jasvir Singh Rattan 4 1 ME Student, Department of Civil Engineering (NITTTR) Chandigarh, 2 Professor, Department of Civil Engineering (NITTTR) Chandigarh, 3 Associate Professor, Department of Civil Engineering (NITTTR) Chandigarh, 4 Senior Technical Assistant, Department of Civil Engineering (NITTTR) Chandigarh National Institute of Technical Teachers Training and Research, Chandigarh (U.T) India ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - The study on production of geopolymer bricks using fly ash, mineral material, foundry sand and alkaline solution. Bricks widely belong to the category of construction materials since it's principally used for the development of boundary and partition walls in buildings. For eco-friendly building erection it's vital that the material use for such construction should be environment friendly. Bricks are world’s most adaptable, reliable and durable material for construction. In Geopolymer bricks main ingredients of clay burnt or cement based brick is totally replace by the, waste of burnt coal known fly ash, foundry sand waste from metal casting industry. Materials rich in (Si) silica and (Al) alumina is the necessity for the geopolymer synthesis. The activated solution for geopolymerization is Sodium hydroxide (Na OH) mix with Sodium silicate (Na2 SiO3) solution in appropriate proportion. The key advantages are higher compressive strength as compare to clay burnt brick, eliminate the use of top most fertile soil and effective utilization of industry waste and production of eco-friendly product using waste. The practical work done casting a brick of 230×110×75mm size of geopolymer brick with replacement of sand by foundry sand and mineral material. Key Words: Geopolymer, Foundry sand, alkaline solution, Compressive strength. 1 INTRODUCTION An increasing awareness towards ecological issues has focused industries to develop materials & products that will be additional environment responsive and results in structure development. The products from a country’s natural and waste by-products are important as so much because the industrialization of a nation is bothered. Brick has space with wide family of construction materials since it's primarily utilized for the advancement of external and inward dividers in structures. For creating eco-friendly building it's vital, the structure exploitation in such construction method should be environment friendly. For ample manufacturing and use of bricks from waste materials, additional analysis and development is required, not only on the technical, economic and environmental aspects however conjointly on standardization, government policy and public education associated with waste use and property development. In India, mud bricks have been broadly utilized from long time and are the overwhelming development material even today. Current interest is more than 1000 billion bricks a year. The ordinary routine of terminating dirt bricks in conventional ovens (kilns) consumes extensive amounts of coal, kindling, and different Biomass fuels. The Indian brick industry, which is the second biggest maker on the planet, beside China, devours more than 150 million tons of coal yearly without including the power utilized in brick generation, the diesel for transporting the bricks alone create exactly 180 million tons of CO2, approximately 33% of the aggregate CO2 emission of the worldwide industry (550 million tons of CO2). 1.1 GEOPOLYMER Geopolymers are inorganic, typical ceramic materials forms long chain covalent bond amorphous network. The composition of the geo-polymer material is comparable to zeolitic materials however microstructure is of amorphous state rather than crystalline. In polymerization practice quick reaction of alkaline activated solution with Silica- Alumina minerals takes place and formation of a three- dimensional polymeric chain and ring structure made of - Si-O-Al-O bonds takes place. 1.2 GEOPOLYMER BRICK DEVELOPMENTS In Geopolymer brick the (class F) fly ash having rich silica and alumina content reacts with alkali activated solution pre-mix of sodium silicate and sodium hydroxide results in formation of gel known as binder in geopolymer products. There is no use of cement in this brick production. Instead, the binder is formed by the reaction of an activated solution with a source material. Fly ash above 50%, foundry sand above 40% and (2 to 4) % of mineral Volume: 03 Issue: 08 |Aug -2016 www.irjet.net p-ISSN: 2395-0072