Abstract:
The invention relates to a method for producing a composite material from a plastic material and loose stones, said method comprising the following steps: a) the loose stones are mixed with the liquid starting constituents of the plastic material in a mixer, b) said mixture is removed from the mixer, and c) the plastic material is hardened.
Abstract:
In a process to stabilize a flood defense wall, dyke or dam with cracks, the cracks are plugged with a compact hydrophobic polyurethane material of raw density 200 to 100 kg/m(3.
Abstract:
A process for strengthening river embankments by means of dams or dikes with application of at least one polyurethane compact to the mineral material on the embankment surface, involving the steps:(a) mixing a component with isocyanate groups with a component having groups reactive to isocyanates and (b) appliction of the free-flowing mixture from step (a) to the mineral material on the embankment surface is new. Independent claims are included for: (1) a compact hydrophobic polyurethane obtainable by reaction of:(i) polyisocyanates with (ii) compounds with at least two H atoms reactive to isocyanates where compounds (ii) contain at least one fat chemical (sic) polyol and at least one aromatic hydrocarbon resin modified by phenol; (2) a shaped compact polyurethane body and a mineral material where the polyurethane is a compact hydrophobic polyurethane; (3) river embankments, especially dams and dikes, where the stone surface is bonded to at least one compact polyurethane.
Abstract:
The invention relates to an apparatus for coastal protection, comprising at least one porous composite of stones and plastics which is fixed at a point.
Abstract:
The invention relates to a method for stabilizing and securing banks, hillsides and slopes, and structures present at least partly in moving waters, such as supporting and construction elements, by composite materials comprising mineral particles, preferably stones, in particular crushed rock, and an epoxy resin.