A REVIEW ON USE OF GGBS WITH BUBBLE STABILITY IN FRESH CONCRETE

To improve the stability of air bubbles in fresh concrete, it is great significance to better understanding of the mechanisms and main influencing factors of bubble stability in fresh concrete. The according to study report of strength analysis of GGBS concrete it will give assurance to encourage people working in the construction industry for beneficial and economical use of it in large amount . The results show that the surface tension of air-liquid exerts impact on bubble stability by reducing surface free energy. Surface tension may not be the only determinant of bubble stability. Concrete bubble is a common phenomenon in the concrete construction process. The application of Air Entraning Agent (AEA) is a current trend and plays a key role in bubble stability. Generation and existence of concrete air bubble is not only influence the concrete appearance, but also affects service life of concrete. Use of GGBS as cement replacement is simultaneously reduces cost of concrete and help to reduce rate of cement consumption in concrete. Ordinary Portland cement 53 grade and replacement cement with Ground Granulated Blast Furnaces Slag (GGBS). The investigation on compressive strength of the concrete at different ages such as 7 days, 14 days, 28 days, and 56 days .the Ground Granulated Blast Furnaces Slag (GGBS) is replaced 0% ,5%,10%, 15%,20% and 25% in the OPC 53 cement.