REINFORCED PLASTICS COMPOSITES, GDP KORAL s.r.o.
Alternative to traditional materials
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Alternative to traditional materials
It´s a partnership of French company GDP SA, which are engaged in pultruded profiles and load-carrying constructions, and Czech company KORAL s. r. o., supplier of full range of materials and things for lamination. We are section of company GDP Group, which proposes, produces and supplies solutions on the basis of plastics composites by production plants in France, Spain and Czech Republic.
Plastics composites are produced by many various technologies. Company GDP KORAL is specialized in highvolume continual technologies, mainly pultrusion and pressing.
Composites are defined as materials, which are consisted of two or more components variant physical and chemical properties.
The fibre-reinforced plastics composites are good alternative to traditional construction materials such as steel (stainless), iron or wood. We produce a profiles, gratings or planks. The products can be supplied individually or as complete walkways and bridges, industrial stairs, railing.
Our profiles satisfy requirements minimally accordant with requirements E 23 of standard EN 13706, which is a European standard valid for pultruded profiles for construction purposes.
The standard specifies minimal demands on quality and toleration as well as strength properties of construction profiles.
Basically, the standard divides pultruded structural profiles in two classes:
The standard contains three parts:
Part 1 specifies a designation of construction profiles with respect to choice of material, reinforcement, surface treatment etc.
Part 2 indicates a test methods as well as tolerations for pultruded construction profiles. An instructions for quality and her safeguard are also introduced.
Part 3 assignes a minimal values of technical parametres of construction profiles in relation to two classes of the standard.
| Property | EN 13706 | Units | Standard | |
|---|---|---|---|---|
| Minimum properties that are requirested EN 13706 | E 23 | E 17 | ||
| Full section test | 23 | 17 | GPa | EN 13706-2:2006 |
| Tension modulus - axial | 23 | 17 | GPa | EN ISO 527-4 |
| Tension modulus - transverse | 7 | 5 | GPa | EN ISO 527-4 |
| Tension strength - axial | 240 | 170 | MPa | EN ISO 527-4 |
| Tension strength - transverse | 50 | 30 | MPa | EN ISO 527-4 |
| Pin-bearing strength - axial | 150 | 90 | MPa | EN 13706-2:2006 |
| Pin-bearing strength - transverse | 70 | 50 | MPa | EN 13706-2:2006 |
| Flexural strength - axial | 240 | 170 | MPa | EN ISO 14125 |
| Flexural strength - transverse | 100 | 70 | MPa | EN ISO 14125 |
| Interlaminar shear strength - axial | 25 | 15 | MPa | EN ISO 14130 |
