2. Bitumen
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Area of use
Bitumen-based waterproofing is generally produced by bonding hot bitumen (known as hot applied coating or HAC) to factory-prefabricated sheets comprising a reinforcement (cardboard, felt or glass cloth) coated with a bituminous mass. This is not simply a poured waterproofing compound, as in the case of asphalt used in public works. However, as we shall see, this is an old technique that is now outdated.
2.1 Bitumen characteristics
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Penetrability/hardness
Penetrability, expressed in tenths of a millimeter, represents the penetration into a bitumen sample, after a time of 5 seconds, of a typical needle whose mass with its support and, possibly, with an additional filler, is 100 g.
It is generally...
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Bitumen
Oxidized bitumen-based multilayer coatings
Standards
- Roches, poudres et fines d'asphalte naturel - NF B 13-001 - Décembre 1977
- Mastic asphalt for waterproofing – Definitions, specifications and test methods - NF EN 12970 - Décembre 2000
- Bitumes et liants bitumineux. Détermination de la pénétrabilité à l'aiguille - NF EN 1426 - Décembre 1999
- Bitumen and bituminous binders and binders – Determining the softening temperature – Ball-and-ring method - NF EN 1427...
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