______ has become the first city in the country to get a processed steel slag (industrial waste) road.
Surat
Surat Becomes First City with Steel Slag Road in India
The question asks to identify the first city in India that has constructed a road using processed steel slag, which is a type of industrial waste.
Steel slag is a byproduct generated during the production of steel. Traditionally, large quantities of this material are left as waste, posing environmental and disposal challenges. However, researchers and engineers have explored ways to process and utilize steel slag as a sustainable alternative material in construction, particularly in road building.
Constructing roads using processed steel slag offers several potential benefits:
- Sustainability: It provides a valuable use for industrial waste, reducing the need for virgin materials like aggregates.
- Cost-effectiveness: Utilizing waste material can potentially lower construction costs.
- Durability: Studies suggest that roads built with steel slag can be durable and resistant to wear.
- Environmental Impact: Reduces the burden of landfilling large volumes of steel slag.
Based on reports and initiatives, Surat, a city in Gujarat, has pioneered the use of processed steel slag for road construction in India.
This innovative project in Surat involved constructing a road, reportedly in the Hazira industrial area, using 100% processed steel slag aggregates. This initiative was part of a joint effort involving research institutions and government bodies to demonstrate the viability of using steel waste in infrastructure development.
Therefore, Surat holds the distinction of being the first city in the country to successfully build a road entirely from processed steel slag, marking a significant step towards sustainable use of industrial waste.
| Option | City | Relevance |
|---|---|---|
| 1 | Surat | Correct. Surat is recognized as the first city in India to have a processed steel slag road. |
| 2 | Chennai | Incorrect. Chennai is a major city but not the first to build a steel slag road. |
| 3 | Kanpur | Incorrect. Kanpur is an industrial city but not the first to build a steel slag road. |
| 4 | Shimla | Incorrect. Shimla is a hill station and not associated with pioneering steel slag roads. |
Revision Table: Steel Slag Road in Surat
| Concept | Detail |
|---|---|
| City | Surat |
| Material Used | Processed Steel Slag (Industrial Waste) |
| Significance | First city in India to use this material for road construction |
| Location (example) | Hazira Industrial Area (pilot project) |
| Purpose | Sustainable use of industrial waste, cost-effective construction |
Additional Information: Understanding Steel Slag
Steel slag is a coproduct of the steel-making process. It is formed as molten slag separates from the molten steel. It primarily consists of calcium silicates, calcium ferrites, and calcium aluminates, along with oxides of magnesium, manganese, and phosphorus.
There are different types of steel slag depending on the type of steel furnace used (e.g., Basic Oxygen Furnace slag, Electric Arc Furnace slag) and the specific steel produced. For use in road construction, the steel slag needs to be processed, which typically involves cooling, crushing, and screening to obtain the desired aggregate sizes. Proper aging and processing are also crucial to minimize potential issues like expansion due to the presence of free lime.
Utilizing processed steel slag as an aggregate in asphalt or concrete mixes for road construction is a promising way to reduce the consumption of natural aggregates and manage industrial waste sustainably. The Surat project serves as a key example of this approach in India.
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