Professional hot-applied sealing material for crushed-stone-mastic expansion joints and welded transition zones of bridge structures, railroad joint-inserts and interface joints of asphalt concrete road surfaces
Arrangement of expansion joints with crushed stone filling on bridges and overpasses, railway expansion joints ("ramborts"), joints between surfaces subject to dynamic loads, arrangement of crushed stone-mastic inserts.
Advantages
Completely waterproof seams and inserts.
Smooth and silent driving on the surface.
Short set-up time and fast commissioning.
Effective prevention of destruction of asphalt concrete under conditions of high dynamic loads.
Specifications
Softening point according to R&S, °С, not less: +90 Flexibility, °С, not more than: −25 Relative elongation at break, %, not less than: 50
Composition
Petroleum bitumen, plasticizer, modifying polymers and filler (STO 77310225.003-2021).
Technology
Cutting and cutting the expansion joint chamber.
Blowing with hot compressed air.
Treatment of the walls of the weld chamber with a polymer primer "Brit".
Preparation of stone materials: heating, surface treatment of crushed stone with mastic.
Layer-by-layer filling with hot crushed stone, followed by pouring the layer with mastic, heated to a working temperature of (185 ± 5) ºС.
The description of the work production technology is presented in detail in the technological regulations of NOVA-Brit LLC for the installation of crushed stone-mastic expansion joints.