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The present work is done so as to study the properties of concrete at fresh and hardened stage containing incinerated sludge ash as a partial replacement of fine aggregates in concrete together in different combinations. An experimental research programme is designed in which controlled concrete (MS1 mix) of grade M20 is designed, casted and tested for various strength parameters such as compressive strength, split tensile strength and flexural strength after 7-days as well as 28-days of curing. Three different mixes were prepared containing 10% (MS2 mix), 20% (MS3 mix) and 30% (MS4 mix) sludge ash as partial replacement of fine aggregates. From the test results, it was observed that the values of all the three strength reduced much for MB4 mix. Based on the analysis of test results, it is observed that with the partial replacement of incinerated sludge ash at 30%, the compressive strength of 28 days is comparable to that of controlled concrete.

Effect of Partial Replacement of Fine Aggregates by Incinerated Sludge Ash on the Mechanical Properties of Concrete