Engineering

Waterproofing of the fuel tanks

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The fuel tanks of the service station of the new tourist port of Loano were built ashore by the company PB Lavori Marittimi of Ancona with the Drytech Tank technology

The waterproofing of the fuel tanks of the Loano marina represents the perfect application of the characteristics and qualities of the Drytech Tank.

The tanks of the new Loano harbour were built ashore by the company PB Lavori Marittimi Srl of Ancona in prefabrication on the pier and then launched at sea.

The construction of prefabricated tanks has the advantage of a more practical processing and with a higher quality standard, since the jet in water often produces gravel nests, regardless of the expertise and care of the diving technicians.

Where transport does not constitute an obstacle, the prefabricated tank is therefore preferred.

The tanks were built on the dock of the shipyard area of ​​the new port of Loano and Drytech Engineering collaborated with the designer already in the design phase, for the aspects related to waterproofing and the problems of transporting the tanks.

Made of XS2 exposure class waterproof concrete (submerged constructions in a marine environment), the tanks were again injected on the ground with DRYflex acrylic resin, which waterproofed the joints and shrinkage cracks by pressure. We then proceeded to lift and launch by sinking.

The 4 tanks were then welded with a crowning casting. Also this joint, prepared with the DRYset injection channel, was waterproofed for its entire thickness with DRYflex resin. After emptying it was therefore possible to carry out the final testing.

The Drytech Tank as a whole, and the DRYflex resin in particular, must ensure impermeability from aggressive elements such as sea water.

Construction: PB Maritime Works, Ancona

Waterproofing: Drytech Italy, Como

Waterproofing of a railway subway

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The Trenord railway subway at Saronno, built in six days without interrupting upper railway traffic.

The waterproofing of a railway subway was achieved in just six days and without blocking train traffic thanks to the characteristics of the Drytech Tank.

The Trenord railway subway at Saronno is a demonstration of how one road can be opened without closing another.

The route of a new section of the Trenord railway intersects the Milan-Varese line at Saronno Sud.

The subway that allows the crossing was built in just six days and without interrupting the railway traffic on the line above.

The top-down or Berliner technique was adopted. First, micropiles were driven into the ground to form the bulkheads of the two shoulders of the subway. One section of track was removed, diverting traffic onto the other.

Then the excavation and casting of the Drytech waterproof concrete slab was carried out, supporting the bulkheads and prepared with DRYset crack control elements. The entire operation took only three days, at the end of which the track was restored.

The procedure was then repeated on the other track. After a further three days, the line returned to full operation, with both tracks open.
Excavation was then carried out under the slab, the casting of the slab for the track bed of the subway, and finally the re-cast, directly against the micropiles.

Once the concrete was cured, the joints, punctures and planned cracks were injected with DRYflex Resin, which expanded and sealed them by pressure.

Drytech Engineering provided advice on aspects relating to waterproofing, collaborating with the structural engineer already in the design phase of the underpass.

Ownership: Ferrovie Trenord, Milano

Structure: Studio I.R. Ingegneri Riuniti – Ing. Giuseppe Barbagallo, Catania

Constraction: SALCEF Spa, Roma

Drytech Tank: 1,800 m²

Waterproofing of a car park below sea level

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The Marina di Loano underground car park has 400 parking spaces below sea level. It was built with the waterproof structure Drytech Tank.

The Drytech Tank structure was used for the waterproofing of a car park below sea level.

The new car park of Marina of Loano has 400 parking spaces below sea level.

Loano is one of the most interesting tourist ports in Italy and the Mediterranean for pleasure boating.

The expansion of the Marina involved a surface area of 358,000 m2 and involves the construction of over 1,200 berths, with the possibility of mooring boats up to 50 meters in length.

The port and city are served by a car park with 1,000 parking spaces, of which 400 are underground. Or rather, submarines.

The underground car park of the Marina di Loano, created with the Drytech Tank System, drops 4 meters below sea level.

Structure: Mi.Pr.Av, Milan

Construction: Marcora SpA, Milan

Drytech Tank: 7,700 m²

waterproofing swimming pool

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very long swimming pool

Drytech Tank waterproofing gives architects great freedom of expression, particularly when designing swimming pools.

As in the case of this exposed Drytech waterproof concrete pool, which is long on the outward journey and short on the return.

It is the perspective effect created by architects Mikail Akbas and Massimo Carmellini, who also designed the villa on the heights of Chiasso.

Seen from the side of the diving board, the pool appears very long and the body of water is the absolute protagonist.

Conversely, on the opposite side it is the villa and the large lawn that characterize the space, and the swimming pool – which previously seemed as long as the porch – retreats into the greenery.

The infinity east side and the slope of the lawn produce another surprising effect, with the trees in the hedge appearing to rise directly from the water.

The exposed swimming pool was built in a Drytech waterproof concrete structure and waterproofed, once the construction was completed, with injections of expanding resin which sealed the joints, the shrinkage cracks and the numerous crossings, such as the inflow vents, the drains and the immersed lamps.

Project: Architetti Mikail Akbas, Chiasso and Massimo Carmellini, Balerna.

Construction: Garzoni, Lugano

Rehabilitation waterproofing of the Milan metro

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renovation of some sections of the Milan Metro

Drytech carried out the rehabilitation waterproofing of several sections of the Milan metro during the night-time closure of the service, therefore without interfering with the normal circulation of trains.

The interventions were carried out with injections of DRYflex expanding resin in the joints between the floor and the inverted arch, for the entire thickness of the concrete structure of the tunnel.

DRYflex Resin is effective even in the presence of pressurized water. This made the intervention possible despite the huge extent of the infiltrations.

MM Line 2 was built between the 1960s and 1970s without waterproofing, because the water table was much deeper.

The closure of Milan’s manufacturing activities in the 1980s reduced water consumption and caused the groundwater level to rise up to the Line 2 tunnels.

The infiltrations were controlled by pumping systems active 24/7, but in periods of heavy rainfall some sections were still flooded.

It was therefore decided the renovation of some tunnels of the Milan Metro, carried out by Drytech during the night traffic closure.

Client: Metropolitana Milanese

Waterproofing of a rooftop swimming pool

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Overlooking Lake Maggiore, the house with a hanging pool designed and designed by engineer Bonalumi for himself.

Drytech realised the waterproofing of a rooftop swimming pool with the Drytech Tank waterproof concrete structure.

Overlooking Lake Maggiore, immersed in the woods above Ascona, the house with a hanging pool designed and designed by engineer Bonalumi for himself.

The pool occupies part of the top floor and, from the water, the view sweeps across the entire lake.

The bottom of the pool is the slab of the master bedroom.

The structure is a Drytech Tank in exposed waterproof concrete, with the edge of the pool completely covered with the Drycoat waterproof covering.

Project: Pianifica SA, Locarno

Waterproofing Hospital

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The new Sant'Anna hospital in Como is located on an area of ​​over 80,000 m² south of the city of Como and a few hundred meters from the headquarters of Drytech Italia.

The choice of the Drytech Tank as the waterproofing system for the Sant’Anna Hospital in Como ensured a significant reduction of work days in the overall site budget, thanks to the construction characteristics and organisation of the Drytech system.

The activities of the Drytech Tank are in fact parallel to the other activities of the site, so that the waterproofing item has been removed from the work schedule.

The Como Polyclinic has two underground floors exposed to a 2-meter flap, which will also house the operating theaters.

To support the weight of the structure, the site of the construction site was consolidated with approximately 4000 reinforced concrete poles, with a depth varying between 20 and 30 meters.

The poles were thrown into shirts driven into the ground with micro-explosions.

Contractor: Infrastrutture Lombarde

Project: Euro-Project

Structure: Eng. Franco Mola, Milan

Construction: Consorzio S.AN.CO

Waterproofing of a residential complex in contact with the sea

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The conversion of the industrial port area, west of the Genoa airport, also involves the construction of the Borgo alla Marina residential complex.

The Drytech Tank was chosen for the waterproofing of a large residential complex in direct contact with the sea.

When construction was complete, the waterproofing of the underwater level was tested by flooding the site perimeter.

After checking the watertightness of the Drytech Tank, the structure was launched by removing the sheet piling.

The conversion of the industrial port area, west of the Genoa airport, also involves the construction of the Borgo alla Marina residential complex.

200 prestigious apartments, with relative berths and garage, overlooking a new tourist port.

Below the buildings and the square, in direct contact with the sea water, is the covered parking area for residents.

Project: Studio Gnudi, Genova

Contractor: Aurora Costruzioni, Milano

Double waterproofing for the pool surrounded by a water garden

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Piscina a sfioro immersa in un giardino acquatico, anch’esso a sfioro. Con una vista mozzafiato sul lago di Lugano.

Double waterproofing for the infinity pool surrounded by a water garden, also an infinity pool with a breathtaking view of Lake Lugano.

This striking pool is a Drytech Tank with three walls against the ground and one – lake side – fully exposed.

Project: Franzi and Canetta Architects, Noranco

Waterproofing the thermal plant

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The residential center La Città sul Mare in Savona, in fact, heats up in winter and cools down in summer by exploiting the sea temperature.

The Drytech Tank waterproofing system was used for the sea inlet of the Città del Mare’s thermal plant, as well as for the two floors of the underground car park, which is exposed to a 5-metre water table, as can be seen from the jet pressure coming out of the pump shaft in the third picture.

The residential center La Città sul Mare in Savona, in fact, heats up in winter and cools down in summer by exploiting the sea temperature.

Excellent news for the sky arrives from the sea.

The plant is zero-emission and, using a renewable and free resource, provides a definitive solution to the problems of atmospheric pollution and the soaring costs of fossil energy sources.

The Savonate housing complex was built by Meraviglia Spa of Bulgarogrosso (CO) and was designed by the Technion Srl and Ellevi di Lecco design studios.

The 120 apartments are served by a heating system connected to a sea outlet, built on the boulder pier facing the complex.

The basic principle of the system is the substantially constant temperature of the sea water (about 18 ° in this stretch of coast).

The pipes of the heating and air conditioning system from the building run underground to the sea intake, where the heat pump is located, which uses sea water as a source or as a heat sink.

The transport of thermal energy takes place through the same water. Water that is sucked from the sea, brought up to the heat exchanger and, therefore, released.

The system has a positive energy balance: it supplies more energy (heat) than electricity needed for its operation (the ratio is at least 1 to 4 or higher, up to 1 to 6).

Structure: Technion and Ellevi, Lecco

Construction: IMM, Milano