Green Concrete

People refer green concrete which is having the coloured pigment. But generally, the concrete which is environmentally friendly is called as green concrete. This concrete will use less energy for its production, and also emits less carbon dioxide than normal concrete. The concrete is mainly comprised of cement. The main component of the manufacturing of the cement is limestone (calcium Carbonate CaCO₃). During the manufacturing of the cement the raw materials are heated about 800 – 1000 degree Celsius. Approximately 1kg of cement releases around 900gs of CO₂ into the air.

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Only cement production alone accounts more than 6% of carbon dioxide emissions in the world. It is the major gas that causes the global warming. India is the 3^rd largest producer and one of the largest cement consumers of the world. Efforts are been made to reduce the carbodiimide emissions from the concrete some of them are using of supplementary Cementous materials like fly-ash, blast furnace slag etc…

Green concrete is achieved by reducing the amount of the green house gases (specially CO₂) when the concrete is being manufactured. To achieve this, we can use the following methods.

• Locally available: Use the materials which are locally available there by saving the resources and energy in transportation to the project site.
• Reusable or recyclable materials: Select materials which can be reusable or recyclable (dismantled and used again)

Requirements:

Knowledge of Concrete Technology.

Knowledge of construction materials.

Testing apparatus for Compression, specific gravity etc… (A concrete lab can be used)

Project Implementation:

1. Make a desired mix design. (prefer IS 10262)
2. Check all the parameters such as water absorption, compressive strength, flexural strength, etc...
3. Try to replace the materials (Cement with SMC, coarse aggregate with demolished waste etc…)
4. Make the concrete specimens and test the cubes.
5. Compare the strength between both the concretes mixes.
6. Report the differences in the strength, water absorption and all the properties of the soil.

Software Requirements:

• If you need to plot the graph for the values you can use software like MS-Excel, Origin Pro etc…

Advantages:

• Lasts Longer (the cement used in green concrete last longer than ordinary concrete)
• Use of Industrial Wastes
• Reduction of the energy consumed for the production of cement.
• Reduces the CO₂ emissions
• Light weight as the specific gravity of the replaced materials are less than the native or traditionally used materials.

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Conclusion:

Green concrete can the impact on the environment by reducing the carbon dioxide emissions by 30% it is also a possess good fire and thermal resistance.

• No Kit Required

• Concrete Technology
• Environment

Green Concrete