• Mendu hari Chandu Mohan
• A Venkata Krishna

One of the main substitute materials that can be utilized in place of natural sand in concrete is the manufactured sand that is available in surplus in various quarries. The crushing and screening procedure in the quarries produces the produced sand as a by-product. A significant amount of fines are produced during the production of aggregates from crushed rocks. The clay/silt fraction known as the "filler" grade is included in the graded mixture of coarse, medium, and fine sand particles that make up quarry fines. The industry defines filler grade material as that which is smaller than 0.075mm (75 microns) in size. These fine materials are washed in water to remove the filler grade content, leaving behind a clean, marketable "sand" product. The objective of the current study is to determine how the physical and chemical characteristics of produced sand affect the performance of concrete of the M20, M30, and M40 grades. On concrete properties, an attempt has been made to concentrate on replacing natural sand with manufactured sand to varying degrees (0–100%). Experimental analysis and comparison with natural sand's physical characteristics of manufactured sand's specific gravity, fineness modulus, water absorption, surface moisture, size, and shape. The specific gravity, fineness modulus, water absorption, and surface moisture values of various quantities of manufactured sand have been incorporated into the mix design. The fresh and hardened properties of concrete, including workability, compressive strength, splitting tensile strength, flexural strength were examined for different replacement levels of manufactured sand at various curing times, and the ideal replacement level was found. When the replacement level of manufactured sand content also rose, it was seen that the mechanical qualities of concrete with manufactured sand improved. These characteristics of the concrete with manufactured sand, however, are higher when there is a proportion of 70% manufactured sand and 30% natural sand.

Manufactured Sand, specific gravity, fineness modulus, water absorption, workability, compressive strength, Splitting tensile strength, flexural strength

"AN EXPERIMENTAL STUDY ON PARTIAL REPLACEMENT OF FINE AGGREGATE BY MANUFACTURED SAND IN CONCRETE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 7, page no.e233-e244, July-2023, Available :http://www.jetir.org/papers/JETIR2307425.pdf

"AN EXPERIMENTAL STUDY ON PARTIAL REPLACEMENT OF FINE AGGREGATE BY MANUFACTURED SAND IN CONCRETE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 7, page no. ppe233-e244, July-2023, Available at : http://www.jetir.org/papers/JETIR2307425.pdf