STUDY LESSON:-29 [CIVIL ENGINEERING]
For Competitive exams/Railway jobs/Semester exam/Self Study Purpose
2. To increase the work ability of concrete what kind of shape of the aggregate is required?
3. What are measurements to be taken in order to minimize the internal friction between the compositions of concrete?
4. The work ability of a concrete can be improved without adding water are _____________
5. what shape of a steel mould is used in work ability test?
6. The work ability of concrete is measured by ___________
7. The slump value is known to high when it ranges between _____________
8. The purpose of using air entraining agents in concrete are _____________
9. What is the compaction factor for a high degree work ability value?
10. Aggregate is a __________material in concrete
Answers:-
1. Stability, compatibility and mobility
2. Round
3. reducing surface are, selecting coarse aggregate, use of more water
4. fly ash, hydrated lime, calcium chloride
5. Frustum a cone
6. water cement ratio and slump value
7. 80mm to 100mm
8. Increase in work ability of concrete, decease in strength and bleeding
9. 0.95
10. Inert
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