Technical Specification
The GRC can also advise on other GRC matrices, including specially formulated material. These new systems improve the long-term strength and toughness retention and/or mold turnaround of GRC components.
The final properties of a particular type of GRC material will depend on the mix design and the method of manufacture. Typical properties for GRC materials made using the spray-up and premix processes are presented in the table below.
Typical Properties of GRC (at 28 days)
|
|
|
|
|
|
Glass Fiber (Weight %)
|
|
5 |
3 |
|
Bending: Ultimate Strength (MOR) Elastic Limit(LOR)
|
MPa MPa |
20-30 7-11 |
10-14 5-8 |
|
Tensile: Ultimate Strength (UTS) Elastic Limit(BOP)
|
MPa MPa |
8-11 5-7 |
4-7 4-6 |
|
Shear: Interlaminar Strength In-plane Strength
|
MPa MPa |
3-5 8-11 |
N.A 4.7 |
|
Compressive Strength
|
MPa |
50-80 |
40-60 |
|
Impact Strength
|
Kl/m2 |
10-25 |
10-15 |
|
Elastic Modulus
|
GPa |
10-20 |
10-20 |
|
Strain to Failure
|
% |
0.6-1.2 |
0-0.2 |
|
Dry Density
|
t/m3 |
1.9-2.1 |
1.8-2.0 |