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Concrete is a composite material, made up of cement, fine aggregates and coarse aggregates. Cement is a basic constituent of concrete and it acts as a binding material. A major drawback in cement is that it emits Carbon dioxide in to the environment. Cement industry serves as the primary producer of carbon dioxide, a potent greenhouse gas. This project is directed to replace the cement in concrete partially by naturally available agro based materials. Here, the cement in concrete is replaced using banana leaf ash . Banana Leaf ash is finely powdered in to ash of fineness more or less equal to the fineness of cement. It is then added to the concrete mix of grade M25 partially by replacing 10% to the mass of cement. The properties and performance of the concrete (i.e., fresh and hardened properties of concrete) are examined before and after the replacement of banana leaf ash and reported. Workability, which is a property of fresh concrete, is estimated with the help of slump cone test. The workability value obtained for normal conventional concrete is low and with the banana leaf ash replaced concrete is medium workability. The compressive strength of concrete cubes is tested after period of 7, 14 and 28 days of curing. As a result, the compressive strength of the conventional M25 grade concrete at 7, 14 and 28 days are found to be 16.75Nmm-2, 20.17Nmm-2 and 23.41Nmm-2 whereas for concrete with banana leaf ash, the compressive strength is found to be 9.385 Nmm-2, 16.855 Nmm-2 and 26.37Nmm-2 . The increase in strength in banana leaf ash concrete at 28 th day is found to be 12.64%. The replacement of Banana leaf ash in concrete deteriorates the carbon emission and it is also a type of waste management.

The usage of solid waste materials in the production of construction materials has received considerable attention across the world. Various types of bricks are used in construction. The most common are conventional bricks. Owing to the exploitation of large amount of natural resources in the manufacturing of conventional bricks, we provide an alternative solution for conventional bricks through this project. The present study investigates the feasibility of using rice husk powder, cow dung and egg shell powder in the manufacturing of fly ash bricks. Fly ash bricks of different compositions with rice husk, cow dung and egg shell powder were prepared in steel moulds. After casting, the brick samples were stored at 35 C and a relative humidity of 50% until the ages required for testing. The brick samples were checked for dimensions and visible defects. The effects of rice husk, cow dung and egg shell powder contents on the engineering properties of the solid bricks were also investigated. The test results showed that all brick samples exhibited good compressive strength. The compression strength ranged between. It is concluded that the manufactured bricks acquired sufficient strength and became more economical.

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In present work, water treatment processes is carried out by an affordable, readily usable and non-chemical method. This study involved the process of water may reduce the concentration of particulate matter that includes suspended particles, micro organisms, a range of dissolved and particulate material derived from the surfaces. The substances used in this work were coarsely blended with each other and a special composite fibre filter was made. Several processes variables of quality of waste are also measured before and after the treatment. Results show that the water quality has been enriched in several ways such as reduction in the dissolved solids, pH has been controlled, deodorization and prevention of microbial growth. Hence use of this work has been utilized as a “Homemaker Model” and act as an alternative method for wastewater treatment in a cost effective way.