| 摘要 |
The invention relates to self-placing porous asphalts consisting of solid mineral fractions (elements less than 0.063 mm, sand and gravel) coated by means of a bituminous binder comprising mineral fibres and/or synthetic fibres, characterised in that the bituminous binder is modified by the addition of polymers and adhesion dopes, in that the sand in the solid mineral fractions is substantially composed of crushed and/or semi-crushed sand, and in that the asphalts are obtained by means of a production method which consists of mixing all the elements in a single mixer in a single step. The invention also relates to a method of preparing such asphalts in a single step in any kind of coating station, and the use of same for producing tanks, in particular holding tanks, banks (canals, rivers etc.), canal covers, structures for railways, embankment coverings, road shoulders, roadways, dams or towpaths, outdoor landscaped car parks, and decorative coverings. |
