| |
Q: How do AR-glass fibers compare to synthetic fibers?
The synthetic fibers currently being marketed as concrete
reinforcement are nylon, polypropylene and polyolefin. The
principle component of AR-glass fiber is silica, 62%. Other
components include 19% of zirconia and 0.1% titanium.
Here is a comparison of the physical properties
of AR-glass and other synthetics:
Property |
Fiber Type |
| |
AR -Glass |
Nylon |
Polypropylene/Polyolefin |
| Specific Gravity |
2.68 |
1.14 |
0.91 |
| Tensile Strength (psi) |
245,000 |
140,000 |
70,000 - 100,000 |
| Modulus of Elasticity (psi) |
10,400,000 |
750,000 |
500,000 - 700,000 |
| Strain at Break |
3.6% |
|
|
The specific gravity of the nylon fiber is 1.14 and the
polypropylene and polyolefin are 0.91 whereas the AR-glass
fiber is 2.68. Remember here that a principal component of
AR-glass fiber is silica.
The most
telling difference is Modulus of Elasticity where the nylon
and polypropylene/polyolefin value will be in the range
of 400,000 to 500,000 psi and the AR-glass has a Modulus
of Elasticity of 10.4 million psi. This is a major and important
difference.
The tensile strength
of nylon is approximately 140,000 psi and polypropylene/polyolefin
is in the range of 70,000 to100,000 psi. The tensile strength
of AR-glass is approximately 245,000 psi, which exceeds that
of steel.
Back
to questions page
|
![[Your Application]](images/yourapplication_off.gif){kind=small}
![[Your Profession]](images/yourprofession_off.gif){kind=small}
![[Reinforcing Fibers]](images/productsservices_off.gif){kind=small}
![[Other Products]]](images/partsaccessories_off.gif){kind=small}
