Decanters in Alquería de Aznar - Alicante

Date: 2010.
Type of work: Civil Work

Construction of two decanters for a truncated inverted pyramid-shaped purifier. The project was carried out using self-compacting concrete in a single position, which required complex beam to beam calculation and multiple highly-detailed assembly drawings to mark out each beam and each plywood panel that were cut to the exact measurements. The Multiform primary beams and aligners transfer the stress to the slab. At the same time, a large amount of Alisply Circular is used to make the paper mill´s other circular storage facilities. The client was impressed by Alsina´s effectiveness on this technically complex project.

Alsina systems: Alisply circular, Multiform

Walton WWTP, Indiana - USA

Date: 2009.
Type of work: Civil Work

Twin, underground, connected reservoirs were built using Alisply Circular for a sewage treatment plant in the town of Walton (Indiana). The customer was fully satisfi ed with the high level of performance offered by the Alisply system from Alsina.

Alsina systems: Alisply circular

Tank in Tamborrios - Badajoz

Date: 2009.
Type of work: Civil Work

The execution of the Tank in Tamborríos is part of the project to improve the water supply in the region of Vegas Altas, in the province of Badajoz.More than 10 m tall with an approximate diameter of 32 m, Alsina is carrying out the formwork of the whole circumference, in two stages.The Alisply Circular (320 m2) system is being used together with the C-160 Climbing Platform from Alsina resulting in optimum production and a perfect fi nish. In addition, a shoring system for the formwork of the beams for the alveolar slabs (1,021 m3) is being supplied.

Alsina systems: Alisply circular, Alsina cl-40 shoring system, C-160 climbing platform

ETAP Áramo Quiros - Oviedo

Date: 2009
Type of work: Civil Work

Treatment Plant with three main modules consisting of setting tank, fl occurator, oxidation chamber and fi lters area. All the walls implemented are straight with heights ranging from 6 to 9 m. In order to get them it was necessary to produce a specifi c modulation with many small-dimensions Alisply panels since there were many joints at different heights between the different structuresand because these same structures had many inner partition walls. In many cases, it was necessary to allow the implementation of the areas of One-Sided Walls because there were walls attached between the different tanks. Finally, the CL-40 Shoring system and the Alumecano systems were used for the implementation of several slabs and footbridges crossing over the tanks.
Alsina systems: Alumecano, Alisply circular, Alisply walls, Alsina cl-40 shoring system

Los Palacios Sewage Treatment Plant - Sevilla

Date: 2007
Type of work: Civil Work

Great expanse STP implemented with Alsina systems. The budget for the new Sewage Treatment Plant was € 2.647.574. The plant was built on 2,2 hectares with the aim of treating the sewage produced by the nearly 36.000 inhabitants of Los Palacios and Villafranca. Thanks to this plant it will be possible to treat correctly the urban sewage since it has the capacity of taking on the pollution load generated by a population of about 56.000 inhabitants, being designed to treat a 14.000 m3 flow
Alsina systems: Alisply circular, Alisply walls, Alispilar, Alisply multipurpose, Alsina cl-40 shoring system, 3-9 m aligners

Reedsport, OR - USA

Date: 2009
Type of work: Civil Work

Sewage Treatment Plant for Umpqua region. The fi rst Alisply Circular used in the Northwestern USA. Contains two reservoirs, the first a rectangular Oxidation Ditch executed with Straight Universal Alisply
and a total of about 800 m2 formwork and a circular clarifi er with about 250 m2 formwork.
Alsina systems: Alisply circular, Alisply walls, Alisply multipurpose

Sewage Treatment Plant - Madrid

Date: 2007/09
Type of work: Civil Work

Major project that required over 5,000 m2 of formwork equipment for different structures. It is specially noteworthy the 2500 m2 of Alisply Circular which was used to solve circular tanks up to 9 different diameters and heights. All this thanks to its easy bending. In parallel, the Alsina´s CL-40 Shoring System was used to run
multiple walkways and some solid slab.
Alsina systems: Alisply circular, Alisply walls, C-160 climbing platform, Alsina table, Reinforced scaffold, Site stair tower

SWDP Torrevieja - Alicante

Date: 2007/09
Type of work: Civl Engineering

Located between the beach of the shipwrecked and the natural park of La Mata (Torrevieja), the Torrevieja Desalination Plant is the biggest in Europe and the second in the world with the inverse osmosis technology. The work consisted of different structures of large dimensions containing many inner walls. The height of almost all of them is 6 or more meters although on being finally buried they seem to be lower. A total of around 100.000 m2 of walls were implemented. For the implementation of walls the option was Alsina’s Alisply system given the high complexity of their construction. Thanks to its great flexibility the system could be perfectly adapted to the different heights required due to the bended shape of the reinforcement being assembled.
Alisply Circular was used for the circular digester and Alisply Universal allowed the implementation of columns up to 11 m high which were concreted in just one go without any trouble. The Alispilar system was used for columns with smaller sections and up to 6 m high. From the safety point of view the bet was on the Alsipercha system and the displacements between different levels on site were made by means of the Access Stairways.

Alsina systems: Alisply circular, Alisply walls, Alisply multipurpose, Reinforced scaffold, Site stair tower, Alsipercha, Reinforced scaffold, Site stair tower

Torrijos Valmojado Sewage Treatment Plant – Toledo

Date: 2004
Type of work: Civil engineering


New sewage treatment plant made entirely using Alsina systems. The large central tank was built, with highly pleasing results, using Alisply Circular with the C-160 Climbing Platform. This is an optimum formwork solution that met the needs of the finish and the height required for this tank. The rest of the facilities at the plant were efficiently built, in particular thanks to the versatility and speed that the Alisply Walls system has to offer.

Alsina systems: Alisply circular, Alisply walls, Alispilar, C-160 climbing platform, 3-9 m aligners, 3-9 m aligners

Ca´Nordio Padova sewage treatment plant – Italy

Date: 2007
Type of work: Civil engineering

Located in Padova, around 200 km east of Milan, the Depuratore Ca´Nordio has become the main sewage treatment plant in the Veneto region (north-eastern Italy). Approximately 450 m2 of Alisply Curve and 600 m2 of Alisply Walls were used in the construction of the curved and straight tanks. Throughout the project, the Alsina C-160 Climbing Platform system was also used to build various structures at height. The project managers gave a very positive assessment of the safety of working with this formworking system.

Alsina systems: Alisply circular, Alisply walls, C-160 climbing platform

La Ranilla Sewage Treatment Plant – Seville

Date: 2006
Type of work: Civil engineering

Located on the plot adjacent to the existing Ranilla plant, the new sewage treatment plant has the capacity to treat 90,000 m3/day. This construction phase provides a water connection from the collection chamber of the Guadaira and Ranilla collectors to the new facilities. During the formwork phase, one notable element was the shoring system of the digester. To perform this process, the layout of the towers was closely studied on the plans so that the primary girders would fit in without any problems, forming completely continuous rings. Another important aspect to be considered was modulating the towers at height, to brace as much as possible with the horizontal members without exceeding the maximum spindle openings.

Alsina systems: Alisply circular, Alisply walls, Alsina cl-40 shoring system, C-160 climbing platform, Alsina table, Site stair tower, 3-9 m aligners, 3-9 m aligners, Site stair tower