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24-10-2017, 01:57 PM

What is the value of Elongation of aggregate and flakiness of aggregate

jaseela123d · 24-10-2017, 03:11 PM

1. What do you mean by the elongation index of an aggregate?

2. What to infer from the elongation index?

3. What is the elongation index of the sample to decide the design of a road?

4. What do you mean by the index of desquamation of an aggregate?

5. What to infer from the index of desquamation?

6. How does the desquamation index of the sample help decide the design of a road?

7.How is the global impact expressed?

8. What do you understand by the value of dry and wet impact?

9. The aggregate impact value of material A is 15 and that of B is 35. Which is best for surface heading?

10. The abrasion value found in the Los Angeles test for two aggregates A and B is 50% and 38%, respectively. Which aggregate is more difficult? Why? For what types of constructions are suitable?

11. Why is the Los Angeles abrasion test considered superior to the other form of testing used to determine the hardness of aggregates?

12. Two materials have abrasion values 3 and 10 respectively. Which is more difficult and why?

13.How does the water absorption of the coarse aggregate affect the design of the concrete mix?

14. Define flash and fire points.

15. What is the importance of the flash test and fire point?

16. What is the parameter affecting the flash and fire point test result?

17. Define specific gravity

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