International Research Journal of Education and Technology

Concrete paver blocks came into existence in Netherland after Second World War. The paver block technology is gaining importance all around the world due to its better quality, economy, better surface efficiency, easy to lay in any bond, maximum salvage value in case of replacement. This construction technology of paver blocks started in India at IIT Kharagpur at first and growing at alarming rate due to its uses. The paver blocks are manufactured from zero slump plain concrete and is a small element used for outdoor applications and flexible road surfaces. Depending upon the traffic intensity these are fabricated with various thicknesses, dimensions and shapes to meet with the requirement of various applications. IS:15658 permits the use of 33 grade OPC minimum for manufacture of paver blocks but this type of cement has restricted use now a days in India. Keeping in view these circumstances, OPC 43 grade cement replaced by 30% fly ash has been used in the present study. Fly ash is a huge waste available at thermal power plants in the country. Large consumption of fly ash in paver blocks will help the nation to make economical paver blocks and will address challenges associated with environmental issues and disposal of waste. The present study is important for paver block manufacturers as it meets the objectives such as mix design, strength and durability requirements for Indian roads associated with utilization of waste material fly ash. Also, the study will help the nation economy for 20% level in future, along with sustainability of virgin materials.

Keywords: Fly Ash, Concrete , Mix Design, OPC, New Technology