Top 20 accessed subjects
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1. Slump test
2. Basic properties
3. Consistence tolerance - slump test
4. Screeds – general
5. Air-entraining admixtures
6. Honeycombing of concrete.
7. Contiguous Bored Piles/Secant Piles
8. Floated and trowelled finishes
9. Masonry - Densities
10. Example of U value calculation
11. Bleeding and segregation
12. Cold Joints
13. Water absorption limits on aggregates
14. Detailing symbols (previous & current)
15. Batching by volume - DIY
16. Question on floor insulation
17. Suspended floors
18. Basement grades and types
19. Friction between elements
20. Time limit between placing fresh concrete layers
