Development Of Ultra High Strength Self Compacting Fiber Reinforced Concrete Using Latest Admixture

With the growing population, there is a huge demand for infrastructure. To produce huge infrastructure, high strength concrete and heavy reinforcement are needed [2,3]. In heavy reinforcement, ordinary concrete can compact itself and need vibration [4]. So the Ultra High Strength Self Compacting Fiber Reinforced Concrete has been developed. The Ultra High Strength Self Compacting Fiber Reinforced Concrete is developed from the combination of Self Compacting Concrete (SCC) and fiber reinforced concrete to overcome the problems like heavy reinforcement, strength, and non-availability of materials [8]. The UHSSCFRC is made by using coarse and fine aggregate, huge amount of cement, pozzolanic materials, mineral admixtures and chemical admixtures. The UHSSCFRC are affected by the characteristics of materials and the mix proportions [22]. According to Okamura and Ozawa [12], the coarse aggregate in concrete should be fixed to 50% of total aggregate content and the rest of volume is fine aggregate [4]. The water-powder ratio is drastically reduced and super plasticizers are added to increase strength and VMA to resist segregation. The dosage of S.P and VMA is from 0.5% to 2% of powder content. The required proportions are determined by conducting a number of trials [9]. In this paper, the river sand is completely replaced by quartz sand which is much durable and gives strength. The paste is prepared by cement, micro silica, and quartz sand which are the most important in SCC [14] . The quartz powder acts as both filler and pozzolanic material which makes the mix denser. The micro silica is used as the