| Thread Review (Newest First) |
| Posted by mh.harsh - 10-06-2017, 07:05 AM |
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electronic waste is simply known as e-waste.Generation of waste materials are create the most ecological problems for the environment. Especially the electronic waste materials are the harmful and toxic waste materials compare to other solid waste. To rectify those environmental problems by reuse of E waste in some other methods. If using this e waste materials in construction wise the cost of cement, concrete manufacturing and cost of construction materials will reduce. It will reduce the value of landfill cost, saving energy and it will protect the environment from the solid waste pollutions and its effects indirectly. E waste consist a waste of TV, Refrigerator, radio,AC,broken laptops and some electronic wastage. An experimental study utilization of e waste materials or particles additionally in concrete with a percentage of 0% to 20% at the strength criteria M25 grade of concrete. Following that the chemical properties like chloride and sulphate testing also be conduct for this study. Finally this study gives the environmental aspects for the E wastes and basic mechanical properties and chemical behavior of conventional and e waste concrete for M25 grade. |
| Posted by jerin jose - 10-06-2017, 07:05 AM |
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Abstract Electronic waste is an emerging issue posing serious pollution problems to the human and the environment. The disposal of which is becoming a challenging problem. For solving the disposal of large amount of E-waste material, reuse of Ewaste in concrete industry is considered as the most feasible application. Due to increase in cost of normal coarse aggregate it has forced the civil engineers to find out suitable alternatives to it. E-waste is used as one such alternative for coarse aggregate. Owing to scarcity of coarse aggregate for the preparation of concrete, partial replacement of E-waste with coarse aggregate was attempted. The work was conducted on M20 grade mix. The replacement of coarse aggregate with E-waste in the range of 0%, 5%, 10%, 15%, and 20%. Finally the mechanical properties and durability of the concrete mix specimens obtained from the addition of these materials is compared with control concrete mix. The test results showed that a significant improvement in compressive strength was achieved in the E-waste concrete compared to conventional concrete and can be used effectively in concrete. The reuse of E-waste results in waste reduction and resources conservation |
| Posted by Nicky soman - 10-06-2017, 07:05 AM |
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Abstract Electronic waste is an emerging issue posing serious pollution problems to the human and the environment. The disposal of which is becoming a challenging problem. For solving the disposal of large amount of E-waste material, reuse of Ewaste in concrete industry is considered as the most feasible application. Due to increase in cost of normal coarse aggregate it has forced the civil engineers to find out suitable alternatives to it. E-waste is used as one such alternative for coarse aggregate. Owing to scarcity of coarse aggregate for the preparation of concrete, partial replacement of E-waste with coarse aggregate was attempted. The work was conducted on M20 grade mix. The replacement of coarse aggregate with E-waste in the range of 0%, 5%, 10%, 15%, and 20%. Finally the mechanical properties and durability of the concrete mix specimens obtained from the addition of these materials is compared with control concrete mix. The test results showed that a significant improvement in compressive strength was achieved in the E-waste concrete compared to conventional concrete and can be used effectively in concrete. The reuse of E-waste results in waste reduction and resources conservation. INTRODUCTION In the present scenario, no construction activity can be imagined without using concrete. Concrete is the most widely used building material in construction industry. The main reason behind its popularity is its high strength and durability. Today, the world is advancing too fast and our environment is changing progressively. Attention is being focused on the environment and safeguarding of natural resources and recycling of wastes materials. One of the new waste materials used in the concrete industry is E-waste. For solving the disposal of large amount of E-waste material, reuse of E-waste in concrete industry is considered as the most feasible application. Preparation of Test Specimens For the purpose of testing specimens, various concrete specimens were prepared for different mixes using rotating drum mixer. Preparation of concrete specimens aggregates, cement and E-waste was added. After thorough mixing, water was added and the mixing was continued until a uniform mix was obtained. The concrete was then placed in to the moulds which were properly oiled. After placing of concrete in moulds, proper compaction was given using the table vibrator. For compressive strength test, cubes of size 150mmx150mmx150mm were cast. For splitting tensile strength test, cylinders of size 150mm diameter and 300mm height were cast and for flexural strength test, beams of size 150mmx100mmx100mm with and without reinforcement were cast. Specimens thus prepared were demoulded after 24 hours of casting and were kept in a curing tank for curing. For durability test, cubes of 150mmx150mmx150mm were cast for acid and sulphate attack. The durability test was done after 28 days of water curing. The dimensions of specimens used for the present study are listed in Table 3. |