A method for waterproofing of bridges (1) and similar structures aimed at railway traffic is described, the structures comprising an arch or deck structure, on which there is placed a ballast (M) of gravel or crushed stone (2) upon which the tracks (6) extend between the two ends of the bridge (1). The waterproofing is obtained first by the removal of the tracks (6) and a reduced layer (S) of gravel or crushed stone (2), leaving in place the remaining part of gravel or crushed stone (2), and then by laying one or more sheets (10) of cured rubber on the remaining part of gravel or crushed stone (2). The thickness of the rubber is such as to be sufficiently resistant to perforation by the gravel or crushed stone (2), which is subsequently placed thereon to complete the ballast, Finally, the previously removed tracks (6) are set in place again. According to the method, a joint is made between the sheets (10) by means of a connection of mechanical type, with a positive locking shape fit, or a chemical bond using a suitable adhesive.

A protective coating system for a railway structure having a waterproof membrane and a ballast mat. The waterproof membrane is disposed on the railway structure. The ballast mat further has a ballast protection coating and a sealing layer. The ballast protection coating is a rubber compound and is disposed on the waterproof membrane. The sealing layer is disposed on the ballast protection layer.

A movable boarding bridge includes: an inner tunnel; an outer tunnel disposed on an outer surface of the inner tunnel so as to slide on the inner tunnel; a roller arranged on the external surface of the inner tunnel; and a rainwater gutter-type rail arranged on the internal surface of the outer tunnel, and configured to guide the roller such that the roller moves along the rail and to allow inflowing rainwater from the outside to flow therethrough, wherein the rainwater gutter-type rail may be configured such that the rainwater gutter is not seen from the inner tunnel through which passengers pass.

The present invention relates to a material for waterproof layers used for a waterproof layer of a construction, the material for waterproof layers containing a polyamide resin, the polyamide resin having a softening point of 70 C. or more and 170 C. or less and a melt viscosity at 180 C. of 100 mPa.Math.s or more and 9,000 mPa.Math.s or less, the polyamide resin being obtainable through condensation of a carboxylic acid component and an amine component.

The present invention relates to a material for waterproof layers used for a waterproof layer of a construction, the material for waterproof layers containing a polyamide resin, the polyamide resin having a softening point of 70 C. or more and 170 C. or less and a melt viscosity at 180 C. of 100 mPa.Math.s or more and 9,000 mPa.Math.s or less, the polyamide resin being obtainable through condensation of a carboxylic acid component and an amine component.

A system and method for treating liquid runoff from bridge decks or other types of roadways are provided. The system includes vertical scuppers positioned at low points along a length of a bridge deck. Each scupper has a removable tube fitted inside the scupper with a filtration media for treating liquid runoff such as stormwater. During rainfall events, liquid runoff gravity flows downward through the tubes and the filtration media inside the tubes so that the liquid is treated before being discharged to the environment. The tubes can be removed to periodically replace the filtration media.

A waterproof expansion joint comprises a ballast protection plate and at least one locating device configured to retain the ballast protection plate over a deck joint. A flexible sealing member located below the ballast protection plate can include at least one flange portion and at least one expansion feature. Each expansion feature can include a shape preformed into the flexible sealing member extending downward into the deck joint and configured to deflect, enabling variation in the width of the flexible sealing member to match the width of the deck joint.

An method and apparatus for coating transportation components such as a bridge deck with a coating. The coating includes a sealant and rubber mixed with a resin and a foaming agent. The apparatus includes a hopper for the rubber, a impingement gun for the resin and a gun assembly that combined the rubber and resin together at a combined nozzle for spraying.

A system and method for treating liquid runoff from bridge decks or other types of roadways are provided. The system includes vertical scuppers positioned at low points along a length of a bridge deck. Each scupper has a removable tube fitted inside the scupper with a filtration media for treating liquid runoff such as stormwater. During rainfall events, liquid runoff gravity flows downward through the tubes and the filtration media inside the tubes so that the liquid is treated before being discharged to the environment. The tubes can be removed to periodically replace the filtration media.

A movable boarding bridge is disclosed. The movable boarding bridge comprises: an inner tunnel; an outer tunnel disposed on an outer surface of the inner tunnel so as to slide on the inner tunnel; a roller arranged on the external surface of the inner tunnel; and a rainwater gutter-type rail arranged on the internal surface of the outer tunnel, and configured to guide the roller such that the roller moves along the rail and to allow inflowing rainwater from the outside to flow therethrough, wherein the rainwater gutter-type rail may be configured such that the rainwater gutter is not seen from the inner tunnel through which passengers pass.