Enhancing the Strength Properties of High-Performance Concrete Using Ternary Blended Cement: OPC, Nano-Silica, Bagasse Ash
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Abstract
This study determined the strength properties of high-performance concrete (HPC) produced using ternary blended cement, based on Nano-silica (NS) and bagasse ash (BA) addition to Portland cement. Several mix proportions, based on random mix design, were considered based on the substitution of constituent materials. Fine aggregate was comprised of 60% river sand and 40% recycled aggregate (RA), coarse aggregate used was crushed rock for the development of M50, M60 and M70 grades of concrete. The replacement of cement by BA causes slowdown initial strength development, but increased the setting time of concrete. In order to improve the performance of HPC at early stage, NS was considered as third admixture for developing ternary binder blend in the concrete. The effect of NS and BA on fresh and hardened HPC were investigated and presented. The results indicated that the incorporation of NS reduced setting time and increased the early age strength development significantly. Thus, it was concluded that the addition of NS with mean particle size of 12 nm is suitable as an additional binder for improving the early age performance of HPC.
Keywords
Bagasse ash Nano-silica Early age properties Recycled aggregate sand High performance concretePreview
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Compliance with Ethical Standards
Conflict of Interest
The authors declare that they have no conflict of interest.
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