Experimental and Characteristics of High Performance Concrete

Mineral admixtures such as ground granulated blast-furnace slag (GGBS), fly ash and silica fume are commonly used in concrete because they improve durability and reduce porosity as well as improve the interface with the aggregate. The lower cement requirement leads to a reduction for CO2 generated by the production of Portland cement. One among these special concretes is the GGBS concrete which is emerging as one of the new generation construction materials in producing high strength and performance concrete for special structures. Our task is to enhance the strength, durability and reduce the cost than the convention. The use of admixture is not only to increase the durability but also to obtain concrete with desired characteristics such as high compressive strength, high workability and high performance concrete al concrete .The experimental work is carried out to investigate the optimum percentage of GGBS to replace cement effectively. An attempt is made to replace cement with GGBS with an interval of 0,25% ,50% and silica fume by constant proportion for minimum grade concrete i.e., M30 and is tested for fresh and hardened properties to identify the optimum percentage of GGBS. Concrete mixtures were produced, tested Compression test to know the strength of the concrete at different replacement percentages and also determine chloride attack test and sulphate attack test.