Waterproofing made of mastic asphalt and asphalt mastic

Mastic asphalt and asphalt mastic are bitumen-bound dense masses consisting of natural asphalt raw meal, fine-grained limestone mixture, sand/chippings and possibly fillers or other additives. In the case of asphalt mastic, the minerals are exclusively fine-grained, in the case of mastic asphalt fine-grained and coarse-grained, which requires a greater layer thickness during processing. While asphalt mastic is used almost exclusively as a waterproofing layer, mastic asphalt also often serves as a protective layer or as a surface covering for drivable surfaces. For waterproofing in accordance with DIN 18533-3, mastic asphalt and asphalt mastic can be used in various construction methods:

• mastic asphalt single-layer/multi-layer on separation layer (DIN 18533 Part 3 Section 12)
• Asphalt mastic on separation layer (DIN 18533 Part 3 Section 13)
• lower layer asphalt mastic on separation layer, upper layer mastic asphalt (DIN 18533 Part 3 Section 14)
• lower layer polymer bitumen welding membrane, upper layer mastic asphalt (DIN 18533 Part 3 Section 15)

Waterproofing with mastic asphalt/asphalt mastic in accordance with DIN 18533-3 is limited to use for water exposure class W1-E (soil moisture and non-pressing water; here only on floor slabs) in a construction method according to section 12/13 of the standard. In the case of a type of construction according to section 14/15, it is also possible to use it for water action class W3-E (non-pressurised water on earth-covered ceilings).

Source: bauwion