Below Grade

Harbour Lofts

Palma De Mallorca, Spain

Impermeabilizar Muros Enterrados con Krystaline
Impermeabilizar Muros Enterrados con Krystaline

DESCRIPTION

Luxury apartments with sea and harbour views in Palma de Mallorca. The residential complex offers in total 15 apartments, with prices ranging between 750.000€ for lofts to 4.600.000€ for duplex penthouses. Each unit has its own terrace and a total constructed area between 80 and 212 square meters.

The three penthouses have their own roof terrace with a private pool. The communal areas offer a large outdoor pool with sun terraces and gardens with Mediterranean plants. There is also a spa area with indoor pool, sauna and fitness areas.

The project faced considerable waterproofing challenges from the start, due to the very nature of the location. The inclusion of three underground car park levels so close to the sea added to the difficulties. The site was mostly composed of “mares”, a type of sandstone typical of the Balearic Islands, which is infamously brittle and permeable. This, combined with the very high water table in the port area, made dewatering virtually impossible.

A tailor-made waterproofing system, combining underwater pours with Krystaline Add1 concrete and cast in place metal waterstops was proposed to solve this challenging situation.

APPLICATION METHODS

Krystaline Add1 was used as an integral waterproofing solution for below grade walls and the 120 cm thick slab foundation, which was poured underwater by commercial divers.

A system of cast in place metal waterstops was affixed to the reinforcing steel beforehand.

The pour started at the early hours of the morning, ensuring the slab could be completed in one piece with no issues.

The waterproofing treatment was completed by further treating the wall-slab joints with Krystaline mortars as part of the Krystaline joint design system.

RESULTS

The waterproofing system was successfully applied, allowing a project that was very difficult to execute to move forward without delays.