Water productivity is the ratio of the amount of water applied to the field in cubic meter and the net return gained in rupees. Increased water productivity leads to an improved occupational value for the farmers. Tank rehabilitation allows for additional water to be added to an irrigation tank, increasing water production. Hence, this study is carried out to assess the net return for a unit of water used in the pre- and post-rehabilitated period of rural tank “Pelasur” in Thiruvannamalai district of Tamil Nadu. The findings reveal that during the post-tank restoration period, a higher percentage of tail reach and marginal farmers benefited. Farmers who irrigate solely with tank water have higher water production since their income per m3 is higher. The significant impact of tank repair was demonstrated using the Statistical Package for Social Science (SPSS-21.0).

The use of nanoparticles in concrete increases the material’s strength and durability, making it useful in the building sector. Nanomaterials can lower the amount of cement in a building since cement releases carbon dioxide, which contributes to global warming. The mechanical response of concrete is studied in this study by replacing cement with various dosages of nanotitanium dioxide and nanoalumina. Nanotechnology has attracted a lot of attention in recent years because of its potential uses for particles. Cementitious materials at the nano/atomic level are the primary focus of current research. The mechanical characteristics of cementitious materials have been significantly improved by introducing nanotitanium dioxide and nanoalumina into cement. Nanotitanium dioxide and nanoalumina have been added to concrete in this study to examine its sorptivity and water absorption properties. To lower the carbon footprint of concrete, nanotitanium dioxide and nanoalumina can be used in place of cement.

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