GRC technical data
PARAMETER | UNIT | SPRAY MOTHOD | CASTED MIXTURE METHOD | CONVENTIONAL CONCRETE |
Glass fibre content in concrete mix | % | 5 | 3 | 0 |
Dry density | g/cm3 | 1,8-2,2 | 1,8-2,0 | 2,2-2,5 |
Thermal conductivity | W/m*K | 0,9-1,5 | 0,9-1,5 | 1,0-1,6 |
Thermal expansion | X10 -6/°C | 7-12 | 7-12 | 10-14 |
Frost resistance | Cykl | 150 | 150 | <100 |
Attenuation (flat 9,3 mm panel) | dB | 31,2 | 31,2 | 31,2 |
Tension | ||||
Breaking stress (UTS) | MPa | 8-11 | 4-7 | 1-5 |
Limit of proportionality (BOP) | MPa | 5-7 | 4-6 | 1-4 |
Bending | ||||
Breaking stress (MOR) | MPa | 20-30 | 10-14 | 3-6 |
Limit of proportionality (LOP) | MPa | 7-13 | 5-8 | 2-3 |
Young's modulus | GPa | 15-25 | 13-21 | 27-35 |
Shear | ||||
Shear | MPa | 8-11 | 4-7 | 3-5 |
Compressive strength | MPa | 50-80 | 40-60 | 15-60 |
Impact strenght | kJ/m2 | 10-25 | 10-15 | 0,05 |
Modulus of elasticity | GPa | 10-20 | 10-20 | 20-40 |
Drying shrinkage | % | 0,6-1,2 | 0,1-0,2 | 0,8-1,8 |