SELF COMPACTING CONCRETE USING INDUSTRAIL WASTE MATERIALS

A Self-compact ing concrete(SCC)i s the one that can be placed in the form and can go through obstruct ion by i ts own weigh t and without the need of vi brat ion . The present thesis report is based on water/binder ratio below 0.30 and Fly ash based SCC with silica fume. The presen t invest igat ion has been under taken to invest igate the st ructure the proper ty i f SCC with fl y ash and si l ica fume using water binder (W/b) ratio below 0.3. Several trial mixes were made in order to reach the suitable mix proportion so as to satisfy the criteria for making successful SCC. Test r esul t include compressive strength, split tensile strength, flexural strength, ultrasonic Pulse Velocity and Rebound hammer values. The stress-strain curves for different mixes clearly depict that strain values for VMA/SCC were on the higher side as compared to strain values for Silica/SCC. Strain values for VMAJSCC were up to 0.0065 whereas for Silica/SCC, it was up to 0.0038. Compressive strength curve pattern shows that there is uniform increase of compressive strength values for VMAJSCC to that Silica/SCC. Early age compressive strength (at 3 days and 7 days) of Silica/SCC was found more than VMA/SCC. Making 7 days compressi ve st r ength consideration, Silica/SCC was found in between 23.5 to 35.6 MPa whereas for VMA/SCC, it was found in between 17.0 to 31.5 MPA. Th e Use of f l y ash and si l ica fume n ormal l y r educes the en vir onmental hazard but makes th e con cret e econ omi ca l as wel l .