Experimental Study on Performance of Hardened Concrete Using Nano Materials
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Various challenges encountered in the construction industry has led to the production of concrete, with not just high strength, but also with enhanced durability properties. Several research works have been carried out using replacement of constituent materials and introduction of various admixtures in concrete. Alccofine is one of such promising micro fine material. This study investigates the performance of hardened concrete using nano materials. Effects of alccofine (AL) and zinc oxide (ZnO) on the durability and strength of hardened concrete were explored. Series of tests were conducted by substituting cement by weight with 10% AL and adding ZnO in proportions, 0.25%, 0.5%, 0.75% and 1%. Based on the results obtained, the strength properties of concrete reduced as cement replacement level rose beyond 10%. The durability performance of the concrete, in terms of rapid chloride permeability, water permeability test, sea water attack and chloride resistance, was within acceptable limist, even as the ZnO was increased. This study has generally proposed a sustainable solution to produce durable concrete that could have useful aaplication in the construction industry.
KeywordsDurability Nano Materials Corrosion Damage detection/Identification Alccofine
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The authors wish to gratefully acknowledge the Counto Microfine Products Pvt. Ltd, Goa and Ambuja Cements Limited Mumbai for supplying the ultra fine slag used in this study.
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