Published on May 2017 | Self Compacting Concrete

SELF COMPACTING CONCRETE WITH QUARRY DUST AS PARTIAL REPLACEMENT FOR FINE AGGREGATE AND FLYASH FOR CEMENT WITH FIBRE REINFORCEMENT

SCC is a type of concrete that can be placed in the form work and it passes through any obstruction by its own weight and does not require any vibration. The process of making concrete structures compact by its own weight is known as Self Compacting concrete. These structures are compacted without vibration. Modern application of SCC is focused on high performance, better and more reliable and uniform quantity. Recognizing the lack of uniformity and complete compaction of concrete by vibration, researches at the university of Tokyo, Japan, started in late 1980’s to develop SCC . By the year 2000, the SCC has become popular in Japan for prefabrication products and ready mixed concrete. The present study focuses on utilization of quarry dust and fly ash in SCC as a partial replacement of fine aggregate and cement respectively. Quarry dust, a by-product from the crushing process during quarrying activities is one of such materials. In recent days there were also been many attempts to use Fly Ash, an industrial by product as partial replacement for cement to have higher workability, long term strength and to make the concrete more economically available. The present experiment is carried out to investigate the fresh and hardened properties of Self Compacting Concrete with 50 percentage of quarry dust as a replacement for fine aggregate and fly ash as partial replacement of cement at various percentages. Steel fiber is also added in the concrete to improve the properties in certain ratio. In this project, an attempt has been made to study the fresh and hardened properties such as flow ability, passing ability, compressive, tensile and flexural strength of Self compacting concrete.