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Technical Properties

GRC products can form up to 6 mm thin, even slices, and thus the weights according to the traditional pre-cast concretes are very few.

If light, strong, weather resistant, fire resistant and attractive material is required, GRC is correct choice.

GRC can be used as  wall panels, window panels, spandirels, columns & column claddings, cornices, copings, balustrades, domes, etc.

GRC can be available in the form of urban furniture, table, fountain and landscape elements.

GRC can be used in historic restoration and renovation works and in replication jobs of the ornamental elements such as  terra-cotta, stone and even wood-finished building.

GRC can be used in  in various applications such as sandwich panels, bus shelters, security barriers, sound barriers, port structures, cable channels, floating pontoons, sun screens and storage tanks.

Due to its low weight and ease of forming, with fewer restrictions and less weight than other materials, GRC offers important freedoms to the designer in the use of the material.

Installation of GRC is easier and it contributes less weight to the building. GRC is varies from 27 kg to 130 kg weight per m2 .

Typical range of traditional sprayed GRC properties (PCI MNL-128-01)

Property

28-day

Aged

Dry Density t/cu.m. [pcf]

1.9-2.1 [120 to 140]

1.9-2.1 [120 to 140]

Compressive MPa [psi]

50-82 [7-12,000]

70-82 [10-> 12,000]

Flexural: MPa [psi]

Yield (FY)

Ultimate strength (FU)

Modulus of elasticity GPa [psi]

 

6-10 [900 ->1,500]

14-24 [2000 to 3,500]

7-21 [1->3.0x106]

 

7-11 [1,000 to 1,600]

9-17 [1300 to 2,500]

18-28 [2.5-> 4.0x106]

Direct Tension: MPa [psi]

Yield (TY)

Ultimate strength (TU)

Strain to failure %

 

5-7 [700 to 1,000]

7-11 [1,000 to 1,600]

0.6 to 1.2

 

5-7 [700 to 1,000]

5-8 [725 to 1,100]

0.03 to 0.08

Shear: MPA [psi]

Interlaminar

In-plane

 

3-6 [400 to 800]

7-11 [1,000 to 1,600]

 

3-6 [400 to 800]

5-8 [725 to 1,100]

Coef. of thermal expansion /0C

(in./in./oF)

10-20 x 10-6

[≈12x10-6]

10-20 x 10-6

[≈12x10-6]

Thermal conductivity. W/m0C

(Btu/in./hr/ft2/ oF)

0.5 to 1.0

[3.5 to 7.0]

0.5 to 1.0

[3.5 to 7.0]

 

 

Typical range of premix GFRC properties (PCI MNL-128-01)

Property

28 day

Density (dry)

1.8-2.0 T/cu.m

Compressive Strength

40-60 MPa

Flexural:

Yield (FY)

Ultimate strength (FU)

Modulus of elasticity

 

50-80MPa

10-14MPa

7-20GPa

Direct Tension:

Yield (TY)

Ultimate strength (TU)

Strain to failure

 

4-6Mpa

4-7MPa

0.1-2%

Shear: In-plane

4-7MPa

Coefficient of thermal expansion

10-20 x 10-6 /◦0C

Thermal conductivity

0.5 to 1.0

W/m0C


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