An Experimental Examination of Concrete for Seven and Twenty-Eight Days of Cement Mortar Recursion

The construction industry's daily increasing demand for fine aggregates to produce concrete cannot be met solely by river sand. As it can meet the growing demand for fine aggregate in mortar and concrete, M-sand is used globally as a substitute for river sand. This is because alternative materials, such as foundry sand, steel slag, copper slag, imperial smelting furnace slag, blast furnace slag, coal bottom ash, ferrochrome slag, and palm oil clinker, are not readily available in sufficient quantities to meet the demand. Due to the size of the building and the high need for fine aggregates, sources other than M sand cannot be made volumetrically available. There is very little research on the properties of mortar and concrete based on Fine Aggregate (FA) grading zones. When moving from river sand to M-sand, zones need to be considered. The primary focus of this study is how the physical properties of M-sand behave zone-wise when compared to river sand. Competent agencies tested M-sand for durability, water permeability, and shrinkage in order to demonstrate its technical qualities. According to all test findings, M-sand was positioned better than river sand. The concrete containing M-sand had RCPT values below 1000 coulombs, indicating very low chloride permeability and high-quality dense concrete, according to the Rapid Chloride Permeability test, which was used to evaluate the durability of M-sand mixes. Likewise, tests for drying shrinkage and water permeability were performed on M-sand grades M25 and M40. The former test showed that the concrete had a very good dense structure, while the latter showed that the shrinkage was within the range predicted by the drying shrinkage estimation curve. Major Findings: Many methods have been employed for examining the features of different river and M-sand zones. In addition to their behaviour in mortar and concrete, the mechanical characteristics of both materials, including workability, compressive strength, and flexural strength, were predetermined. Proportioning, curing, and sample preparation were given the proper consideration. These stages were followed by observation, findings, discussion, and conclusion.