| |
Reinforcement fibers |
Welded wire fabric (WWF) |
| 1 |
Reduction of permeability |
Can increase permeability |
| 2 |
Bonds effectively with concrete permanently |
Bond can deteriorate over time |
| 3 |
Improves surface durability |
No surface protection provided |
| 4 |
Improves impact, shatter and abrasion resistance |
Minor resistance provided if properly placed |
| 5 |
Easy to use and cost effective - no labor
costs |
Difficult to install and expensive -
high labor costs |
| 6 |
Made in U.S.A. |
Not always made in the U.S.A. |
| 7 |
Easy to place in concrete mix - No minimum
cover |
Difficult to place, especially if rolls
- 1" minimum cover required |
| 8 |
Easy to finish with minor effect on workability of mix |
No effect on finish, but difficult to
maintain placement in slab |
| 9 |
Alkali resistant |
Will deteriorate if not properly placed
and protected |
| 10 |
Acid resistant |
Will deteriorate when subjected to acids |
| 11 |
Corrosion resistant |
Corrodes when exposed to water and chemicals |
| 12 |
Retards evaporation (bleed water reduction)
and extends hydration process |
No effect |
| 13 |
Increases early strengths of plain non
-reinforced concrete |
No effect |
| 14 |
Increases tensile strength of plain non-reinforced
concrete |
Increases tensile strength if properly
placed |
| 15 |
Provides three dimensional reinforcement |
Provides reinforcement in one plane |
| 16 |
Increases ductility |
Increases ductility if properly placed |
| 17 |
Increases freeze-thaw resistance |
No effect |
| 18 |
Always positioned in accordance with
codes |
Seldom placed properly |
| 19 |
No lasting aesthetics and can be easily
remedied if necessary |
Permanent if visible with little remedy
possible |
| 20 |
Utilized in air-placed concrete |
Not applicable |
| 21 |
No structural integrity available |
Some if properly placed |
| 22 |
Meets or exceeds ASTM specifications |
If properly placed |
| 23 |
Can be stored for long periods of time |
Storage difficult and detrimental if
stored outside |
