Over the years, Crezza has worked on various projects related to the collection and drainage of stormwater, such as in airport and interport areas (runways, taxiways, parking zones), providing custom-made precast elements designed for the treatment, surface drainage, and conveyance of rainwater.

This category of precast products, available in various sizes, includes:

• Drainage pipes;
• Manholes;
• Channel slabs;
• Tanks;
• U-shaped canels.

L'articolo Water collection elements proviene da Crezza.

Among the precast structural elements provided by Crezza are beams, columns, and concrete blocks designed for the construction of buildings, structures, and civil engineering works. These elements are made from reinforced concrete with slow reinforcement and are custom manufactured according to specific orders, with tailored dimensions to meet any requirement. The prefabrication of reinforced concrete beams includes rectangular-section beams and inverted T-beams.

L'articolo Precast beams proviene da Crezza.

Crezza’s concrete prefabrication range includes reinforced concrete cladding elements designed for covering walls in civil and industrial buildings, floors, piles and soldier pile walls, artificial canals. In addition to precast panels, the company supplies Predalles slabs, consisting of a reinforced concrete slab strengthened with lattice girders, custom-designed with variable thickness and dimensions according to the intended use.

Advantages of precast cladding panels and slabs:

• Fast, easy, and cost-effective installation, achievable with standard lifting equipment;
• Reduced installation time and significant savings in formwork materials;
• High safety during installation;
• The ability to use the slabs as lost formwork, even self-supporting for high-load floors.

L'articolo Slabs and panels proviene da Crezza.

Based on the client’s design requirements, we create structures of varying sizes, up to heights exceeding 10 meters and thicknesses exceeding 1.20 meters. These prefabricated structures can be designed as permanent formwork or with the addition of additional reinforcements that make them fully functional during the final construction phase, leaving the contractor solely responsible for installing the distribution plates and the additional pouring.

Once the elements have been cast, vertical walls are created with a superior surface finish to that of the formwork on site, as well as ensuring optimised construction times.

L'articolo Bilastra for tunnel proviene da Crezza.

Crezza completes the range with semi-prefabricated “SQUICK” elements (a system patented by Techspertise srl, of which Crezza is a production site), designed to combine load-bearing function and acoustic mitigation.
These references are proposed as solutions equivalent to the “HS RFI” typology.
Once laid and poured, the structures are completed with the installation of the noise barrier on top.

The “SQUICK system” represents a refinement of consolidation techniques long used for the construction of retaining walls (including in railway construction). The prefabricated element consists of two reinforced concrete slabs, spaced apart and connected with reinforcing bars that absorb shear stresses during assembly, ensuring the necessary rigidity of the element before the final concrete pour.

L'articolo Squick system for railway noise barriers proviene da Crezza.

Prefabricated structures for tunnels and galleries also include suspended and lateral escape routes, vibrated reinforced concrete structures that ensure easy tunnel escape in an emergency. Prefabricated escape routes are made in various shapes, rectangular or trapezoidal depending on the needs, and are connected to the tunnel structure with tie rods or bolted plates.

In compliance with passive fire protection regulations, an area in which Crezza provides a specific consulting and supply service, escape route structures can be further coated and protected with materials capable of reducing temperatures in the event of a fire in the tunnel.

Reinforced concrete box elements

Concrete prefabrication compliant with anti-seismic regulations

Crezza also produces and installs prefabricated reinforced concrete box elements, which are widely used in underground road crossings, pedestrian crossings, water pipes, and sewer systems.
The prefabricated rectangular-section box-shaped structures are able to support first-class loads and are sized in compliance with Italian and European anti-seismic regulations, as well as offering the option of surface coverings of variable heights.
The main advantages of installing concrete box-shaped elements are speed of installation, which reduces open excavation times, and versatility.

L'articolo Underground escape route proviene da Crezza.

Crezza manufactures precast retaining walls made of reinforced concrete panels, equipped on the earth-facing side with a stiffening rib (buttress) from the base to the top, installed on a foundation curb and then integrated through slab casting.

Custom-made prefabrication to meet a wide range of needs, each containment wall features an exposed face designed to minimize environmental impact: with a formwork finish, patterned, or clad with stone to ensure perfect anchoring: depending on the type of stone used, the exposed face of the wall may have regular or irregular courses in “Opus Incertum” style.

The reinforced concrete walls are manufactured in modules with variable heights and constant widths, allowing for quick installation and the high-quality materials used in prefabrication ensure long-lasting durability. The flat or tapered capping, when staggered relative to the wall, allows for interruption and provides an aesthetically pleasing appearance.

L'articolo Precast concrete walls proviene da Crezza.