FIELD: construction.
SUBSTANCE: ballast prism comprises a ballast layer of crushed stone and of polyurethane foamed plastics on the basis of a reaction mixture made of polyisocyanates and compounds having groups that are reactive relative to isocyanate groups.
EFFECT: increased stability and extended service lives of ballast prisms.
5 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF BALLAST PRISMS FORMING | 2012 |
|
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| METHOD OF PRODUCING POLYISOCYANURATE POLYURETHANE MATERIAL | 2004 |
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| POLYURETHANE ADHESIVE COMPOSITIONS FOR GLUING FILMS WITH LOW SURFACE ENERGY | 2016 |
|
RU2696496C2 |
| FOAMED POLYURETHANE AND METHOD OF PRODUCING FOAMED POLYURETHANE | 2006 |
|
RU2419637C2 |
