EN 14695:2010 – Flexible sheets for waterproofing – Reinforced bitumen sheets for waterproofing of concrete bridge decks and other trafficked areas of concrete – Definitions and characteristics

Where a product is specified by thickness, it shall be measured in accordance with EN 1849-1 and the results shall lie within the declared tolerance of the manufacturer’s declared value. Where sheets with incorporated mineral protection are specified by thickness, the measurement of thickness may additionally be carried out on the granule-free selvedge.
This shall be declared in the report.
4.2.3 Initial amount of mineral surface protection The initial amount of mineral surface protection shall be determined in accordance with EN 12039:1999, Annex B, except that a 125 µm sieve shall be used.
If a distinction is to be made between the different sides of the sheet the initial amount of mineral surface protection shall be determined in accordance with Annex D. The results for the test used shall lie within the declared tolerance of the manufacturer’s declared value.
4.2.4 Tensile properties The tensile properties shall be determined in accordance with EN 12311-1 and the results (for the longitudinal and transverse directions) shall lie within the declared tolerance of the manufacturer’s declared value.
4.2.5 Water absorption The content of water absorbed shall be determined in accordance with EN 14223. The water absorption shall be less than or equal to the manufacturer’s limiting value.
4.2.6 Flexibility at low temperature The flexibility at low temperature shall be determined in accordance with EN 1109. The result shall be less than or equal to the manufacturer’s limiting value.
NOTE This test does not give results that directly correspond to the application conditions in practice. Results should only be used to compare products of similar thickness and construction.
4.2.7 Flow resistance at elevated temperature The flow resistance at elevated temperature shall be determined in accordance with EN 1110. The result shall be greater than or equal to the manufacturer’s limiting value.
4.2.8 Dimensional stability at elevated temperatures The dimensional stability at elevated temperature shall be determined in accordance with EN 1107-1 (24 h at 80 °C). The result shall be less than or equal to the manufacturer’s limiting value. For reinforced bitumen sheets to be used with a layer of coarse aggregate mastic asphalt directly on the reinforced bitumen sheet, the dimensional stability at elevated temperatures (1 h at 160 °C) shall be evaluated in accordance with Annex B when subject to regulatory requirements, and may be evaluated when not subject to such requirements.
The test result shall be less than or equal to the manufacturer’s limiting value. NOTE The test at 80 °C is intended to determine the dimensional changes as a result of production-induced internal stresses under the effect of heat. When combined with a coarse aggregate mastic asphalt layer, the effect of heat is much larger and can cause severe shrinkage to the reinforced bitumen sheet. This effect is therefore declared as well for sheets intended for use in combination with a coarse aggregate mastic asphalt layer.
EN 14695:2010 – Flexible sheets for waterproofing – Reinforced bitumen sheets for waterproofing of concrete bridge decks and other trafficked areas of concrete – Definitions and characteristics