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The accelerated mix modelling approach is a powerful tool for producing high-performance characteristics in young concrete. Since rapid concrete curing accelerates the cement hydration process, the critical portion of the strength is achieved in a fraction of the time it would usually require 28 days under conventional curing conditions. There is no suggestion that Ground Granulated Blast Furnace slag, Silica fume or fly ash was used in the 1980 s . So far, only plain concrete has a connection in the accelerated mix design process. The accelerated curing method was used in this study with a combination of GGBS, fly ash, and silica fume, as well as two different water-binder ratios of 0.3 and 0.4, and by applying 5% silica fume to cement weight, concentrations of GGBS and fly ash as high as 70%, 60% and 50% can be achieved. Normal laboratory size cubes (150 x150 x150mm) were compressed and tested to achieve the goals of this analysis. Compressive strength, impact of GGBS rate and impact of water-concrete proportion were used to improve the consistency of blended concrete with accelerated curing method. This analysis will determine correlations between the boiling water strength and for 28 days, 56 days and 90 days strength of concrete with GGBS, fly ash and Silica fume.

Blended cement containing natural zeolite powder exhibits improved performance & resistance to concrete against aggressive environmental attacks. Concrete structures when exposed to aggressive environments possess several negative impacts due to migration of chloride & sulphate ions, carbonation, acid attack, etc. Due to these, exposures the concrete structure lose their strength gradually, which results in the decreased life span. At present, research work focused on the influence of lower w/b ratios on higher replacement levels of zeolite on the performance of concrete in mechanical & durability aspects. And this study also attempts to generate quantitative data & understand the relationship between lower water-binder ratios 0.30 & 0.40 and higher replacement levels 30%, 40% of zeolite & compressive strength. Mechanical aspects such as compressive strength, split tensile strength, flexural strength tests. Durability aspects like chloride attack through Rapid chloride penetration test (RCPT), Sulphuric acid attack. Magnesium sulphate attack, tests were carried out. Altogether, in the practical point of view test results revealed that concrete incorporating natural zeolite powder gets substantial compressive strength beyond the 28-day period, i.e., strength increases gradually with respect to time. Improvement is noticed at a low water-binder ratio. Increases resistance against chloride, sulphate attacks.