Device of membrane sprayed waterproofing from composite materials on bridges and capital construction objects

Abstract

The reliability of operation of buildings and structures, including bridges and overpasses, is influenced not only by the design, but also by the technologies and materials used in construction, which ensure the necessary durability of the structure [1-5]. The  unsatisfactory state of waterproofing leads to the destruction of concrete and corrosion of the reinforcement of the slab and beams of superstructures, which is the cause of premature failure of bridge structures. The task is to identify directions for the promising use of technologies and materials for sprayed polymer waterproofing on reinforced concrete and steel orthotropic slabs of superstructures of bridge structures and, additionally, capital construction projects. High-quality waterproofing on bridge structures is directly related to the arrangement of the roadway. The design and materials must be such as to reduce the harmful effects of external factors on the coating of the driving surface. The requirements for the elements of the bridge deck, set out in various sections of SNiP 2.05.03-84 *, do not fully provide reliable protection of reinforced concrete load-bearing structures from corrosion damage by water penetrating through the pavement and salts dissolved in it.