Abstract: The use of waste paper sludge ash in concrete formulations was investigated as an alternative to landfill disposal. In this paper represents the optimum use of the waste paper sludge ash with the concrete mixture cement has been replaced by waste paper sludge ash in the range of 0%, 5%, 10%, 15% and 20% by the weight for M-25 and M-40 grade of mix with water binder ratio various from 0.5 and 0.40. The concrete mixtures were produced and compared in terms of fresh and hardened properties with the conventional concrete. The concrete specimen was tested in test as compression test, split tensile test and flexural strength test of concrete at 7, 28, and 56 days. The water absorption, dry density test of concrete at 28 days’ age of concrete and compared with the conventional concrete.  It can be concluded that the optimum percentage of waste paper sludge ash as a result, the compressive, splitting tensile and flexural strength increased up to 10% by weight and particle size less than 90µm to prevent decrease in workability. Further waste paper sludge has very high calorific value and could be used as a fuel before using its ash as partial cement replacement.

Keywords: Waste Paper Sludge Ash, Compressive Strength, Split Tensile Strength, Flexural Strength and Durability Test.

| DOI: 10.17148/IARJSET.2023.10808