PROMSA is a company of the Cementos Molins Group | Corporate web Site
The work consists of industrial buildings for the collection and dispatch of salts from their extraction in mines.
To the work is added the complexity of being a structure very close to the sea in addition to the type of material collected with high chloride content.
For the structure: concretes have been supplied with the corresponding environments plus conventional assembly (increasing the regrowth in the assembly).
For the interior and exterior pavements, the use of structural polymer fiber structural concrete has been chosen (thus avoiding the possible impact of chlorides on the corrugated reinforcement).
In total, some 29,000m3 will be supplied, with completion forecast in March / April 2020.
The work of the Mediterranean corridor on the Castellbisbal-Martorell section provides for the execution of 3 different tunnels with a 2-year construction forecast that begins in 2019.
In a first phase, the Costablanca tunnel, more than 1,000m3 of gunite has been supplied. Another phase is planned for the Martorell Tunnel by spring 2020.
The gunite supplied with a workability margin of 3 hours (with retarder), with different dosages according to specifications (425, 450 and 475 kg cement) plus fibers.
Among the 3 tunnels are planned about 10,000 m3 of gunite, in addition to 55,000 m3 of other concrete typologies.
Promsa faced in 2017 the challenge to supply the new logistics platform of Amazon in El Prat de Llobregat.
The foundation of the slab took several months of supply, the largest (in dimensions and volume) Promsa has ever supplied: 32,000 m3 at a daily rhythm of 500 m3 served from the concrete plants in Zona Franca and Pallejà.
The Pavements phase, 50,000 m2 of screed on the foundation slab with controlled retraction concrete and finishes of high planimetry.
150,000 m2 of compression layer on the Precon alveolar pre-slabs (company of the Ciments Molins group), a concrete with lesser planimetry requirement, but with the handicap of thickness (7/10 cm).
For the urbanisation phase (Sanitation, services, accesses and parking platforms for trucks) we supplied over 7,000 m3 of Flexotraction Concrete.
Finally, in the office area we supplied 2,000 m2 of self-levelling mortar.
In October 2015 Promsa began the product supply works for the construction of the Shuttle that will bridge the city of Barcelona with the T1 and T2 of the El Prat-Airport.
For this project, an on-site plant was built inside the facilities of the Shuttle to supply concrete and mortar.
18,000 m3 of fresh mortar with filler to be injected in the tunnel borer.
100,000 m3 of concrete for screens (concrete with dosage of 375 kg of SR cement) and slabs (HA30 SR).
The works are expected to end in September 2018 pending the supply of around 55,000 m3.
PROMSA ÁRIDOS supplies since July 2017 the UTE ACCIONA COPCISA all-in-one-core and jetties, necessary for the expansion of the Muelle adosado and the construction of a new multi-purpose terminal for the mooring of vessels in the Port of Barcelona, the volume we expect to supply is 420,000 t in 5 months.
The extension of the Muelle adosado is being done by dredging the sludge of the seabed at a 30 m depth and to replace it by pouring All-in-one-core and jetties, by split barge, a vessel that transport 1000 t per trip, creating a foundation to dock on them big prefabricated concrete crates that measure 40x20x20 m and weigh 6,000 t, with which a barrier is created reclaiming land from the sea and building a large surface for the new mooring terminal.
To transport the material from the quarry to the port we have recruited a fleet of over 150 trucks which has represented a great challenge to carry out daily supplies of 7,000 t.
Liquefied natural gas tanks are an infrastructure with high technical requirements not only in the execution of their constructions, but also regarding the materials used to do so. To build these two gas tank sets in Barcelona and Gijón, we installed 2 on-site plants for exclusive supply. The works also included a gasification plant (in Gijón).
The concrete manufactured and supplied was mainly cryogenic concrete, since due to the characteristics of the tank, the requirements were highly-resistant concrete and with the capacity to resists frost and thaw cycles.
The concrete of the walls was executed in several stages using the procedure called “trepa”.
The quality control of the concrete has been essential, since PROMSA chose to install a mobile quality laboratory on site to offer a thorough control.
The concrete requirements for the terminal of the port TERCAT, are very demanding, both regarding resistance and levelling.
Promsa has installed an on-site plant to supply the necessary concrete for the specialised companies to shape the pavements of this big private infrastructure.
The high product quality standards and its traceability have allowed us to meet the most demanding conditions.
Within the external accesses to the Nestlé plant in Girona, a technical pavement with RR Concrete was done.
This type of concrete was chosen after a previous assessment since this product reaches 25 Mpa in 48 h, a requirement the property needed. This concrete has the same workability as conventional concrete.
For this type of product, due to its complexity, the quality team carried out a thorough control to guarantee the resistance.
CN-340 nº2 al 38 Km 1242,3 - 08620 Sant Vicenç dels Horts, Barcelona