302 REQUIREMENTS OF ΕΝ 204 STANDARD FOR THERMOPLASTIC WOOD ADHESIVES FOR NON-STRUCTURAL APPLICATIONS Adhesive type Technical specifications Test method Minimum requirement Application areas D1 7 days in normal conditions* EN 205 ≥ 10 Ν/mm² Interior, in which the moisture content of the wood does not exceed 15%. D2 7 days in normal conditions* ≥ 10 Ν/mm² Interior with occasional short-term exposure to running or condensed water and/or to occasional high humidity provided that the moisture content of wood does not exceed 18%. 7 days in normal conditions* 3 hours in water at (20±5)°C ≥ 8 Ν/mm² D3 7 days in normal conditions* ≥ 10 Ν/mm² Interior areas, with frequent short-term exposure to running or condensed water and/or heavy exposure to high humidity. Exterior areas not exposed to the weather. 7 days in normal conditions* 4 days in water at (20±5)°C ≥ 2 Ν/mm² 7 days in normal conditions* 4 days in water at (20±5)°C 7 days in normal conditions* ≥ 8 Ν/mm² D4 7 days in normal conditions* ≥ 10 Ν/mm² Interior with frequent long-term exposure to running or condensed water. Exterior exposed to weather but with protection by an adequate surface coating. 7 days in normal conditions* 4 days in water at (20±5)°C ≥ 4 Ν/mm² 7 days in normal conditions* 6 hours in boiling water 2 hours in water at (20±5)°C ≥ 4 Ν/mm² REQUIREMENTS OF ΕΝ 1504-3 STANDARD FOR CONCRETE REPAIR PRODUCTS Technical specifications Test method Minimum requirement R4 R3 R2 R1 Compressive strength after 28 days of curing ΕΝ 12190 ≥ 45 N/mm² ≥ 25 N/mm² ≥ 15 N/mm² ≥ 10 N/mm² Elastic modulus in compression ΕΝ 13412 ≥ 20 GPa ≥ 15 GPa Adhesion to concrete ΕΝ 1542 ≥ 2 N/mm² ≥ 1.5 N/mm² ≥ 0.8 N/mm² ≥ 0.8 N/mm² Water vapour permeability EN 13057 ≤ 0.5 kg/m2h0.5 ≤ 0.5 kg/m2h0.5 Thermal compatibility measured as adhesion per EN 1542: 50 freeze-thaw cycles ΕΝ 13687-1 ≥ 2 N/mm² ≥ 1.5 N/mm² ≥ 0.8 N/mm² REQUIREMENTS OF ΕΝ 1504-2 STANDARD FOR CONCRETE SURFACE PROTECTION MORTARS Technical specifications Test method Minimum requirement Permeability SD to CO2 EN 1062-6 sD > 50m Water vapour permeability sD EN ISO 7783 Class I sD < 5m (permeable to water vapour) Class II 5m< sD ≤ 50m Class III sD ≥ 50m (non-permeable to water vapour) Capillary water absorption w EN 1062-3 w <0.1 kg/m2. h0,5 Adhesion to concrete EN 1542 ≥ 0.50 N/mm² no traffic system, flexible or crack bridging ≥ 0.70 N/mm² no traffic system, rigid Impact resistance ΕΝ ISO 6272-1 Class I: ≥ 4 Nm / Class II: ≥ 10 Nm / Class III: ≥ 20 Nm
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