CM 3400 Section 5 & 6

CM 3400 Section 5 & 6 - Section 5 1. 2. 3. 4. 5. 6. 7....

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Section 5 1. False 2. air voids 3. internal or surface vibrators 4. unreinforced or lightly reinforced up to eight inches 5. striking off the surface of concrete to a predetermined grade 6. straight edge 7. smooth and straighten the surface after consolidation and after initial leveling by screeding 8. specified floor flatness is less than 90% compliance with a 0.25-in. deviation from 10-ft straightedge or F F 20 or less 9. True 10. magnesium 11. stricter than F F 20 or 90% compliance with a 0.25 in. max deviation from a 10-ft straightedge 12. near side forms and when an area is congested and impractical to manipulate a long-handled bull float 13. make neat rounded edges next to forms that are less vulnerable to chipping and spalling 14. a narrow groove in the slab 15. one-fourth the slab thickness 16. power saws 17. Hand floats 18. low slump concrete or slab toppings 19. hard and dense 20. the surface has been floated and the bleed water evaporates on slabs that do not require a hard trowel surface and speed of troweling is important 21. True 22. False
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CM 3400 Section 5 & 6 - Section 5 1. 2. 3. 4. 5. 6. 7....

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