Question:
Different types of waste used in construction material
A. Red mud
B. Ash of rice husk
C. Activated Carbon
D. Fly ash
Choose the correct answer from the options given below:
Different types of waste used in construction material
A. Red mud
B. Ash of rice husk
C. Activated Carbon
D. Fly ash
Choose the correct answer from the options given below:
A. Red mud
B. Ash of rice husk
C. Activated Carbon
D. Fly ash
Choose the correct answer from the options given below:
Show Hint
Materials used in construction waste-valorization are usually silica-rich or alumina-rich byproducts that can mimic or assist the binding properties of cement. Activated carbon is for "cleaning," not "building."
Updated On: May 20, 2026
- A, B and C Only
- B, C and D Only
- A, C and D Only
- A, B and D Only
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The Correct Option is D
Solution and Explanation
Concept:
Sustainability in construction involves utilizing industrial and agricultural byproducts as "pozzolans" or fillers in cement and bricks.
Step 1: Evaluate each material's use in construction.
• A. Red mud: A byproduct of bauxite processing (aluminum industry). It is increasingly used in the manufacture of bricks and as a component in specialized cement.
• B. Ash of rice husk: An agricultural waste rich in silica. It is a well-known highly reactive pozzolan used to enhance the strength of concrete.
• D. Fly ash: The most common industrial waste used in construction; it is a primary ingredient in Portland Pozzolana Cement (PPC) and "green" bricks.
• C. Activated Carbon: This is a high-value adsorbent used for filtration and purification. It is $not$ a waste material used as a structural component in construction.
Step 2: Conclusion.
Materials A, B, and D are waste products effectively used in construction, while C is not. Therefore, the correct set is A, B, and D only.
Step 1: Evaluate each material's use in construction.
• A. Red mud: A byproduct of bauxite processing (aluminum industry). It is increasingly used in the manufacture of bricks and as a component in specialized cement.
• B. Ash of rice husk: An agricultural waste rich in silica. It is a well-known highly reactive pozzolan used to enhance the strength of concrete.
• D. Fly ash: The most common industrial waste used in construction; it is a primary ingredient in Portland Pozzolana Cement (PPC) and "green" bricks.
• C. Activated Carbon: This is a high-value adsorbent used for filtration and purification. It is $not$ a waste material used as a structural component in construction.
Step 2: Conclusion.
Materials A, B, and D are waste products effectively used in construction, while C is not. Therefore, the correct set is A, B, and D only.
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