Reinforced concrete piping with steel cylinder

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Tubos de betão armado com alma de aço

Os tubos de betão armado com alma de aço são formados por uma parede de betão que contém uma alma cilíndrica de aço, que lhe confere estanqueidade e que corrobora a capacidade resistente e uma armadura transversal rígida com outra longitudinal.

Estes tubos, tal como o tubo de betão pós-tensionado, podem ser fabricados com dois tipos de juntas: para soldar (rígida) e elástica (flexível com cabeçal metálico e anilha de borracha). O comprimento útil dos mesmos oscila entre 6 e 7 m e os diâmetros fabricados estão compreendidos entre os 1000 e os 2600 mm.

A Prefabricados Delta já fabricou 450 km de tubos deste tipo.

Advantages of steel cylinder concrete pipes:

Manufactured in series to customer requirements.

Highly resistant to impact.

Great durability.

No need for conservation or maintenance.

Reduced head loss over time.

Non-pollutant.

Metal parts fully passivated for permanent protection against corrosion.

Organoleptic properties of water unaffected.

Not sensitive to the effects of fatigue caused by variations in pressure.

Unaffected by rust caused by induced (stray) currents.

Performs much better against deforming stress than other materials, given that it has great transversal rigidity.

Meet all the requirements set forth in UNE-EN standards 639, 641 and 642, the Instituto Eduardo Torroja work instruction for pre-stressed or reinforced concrete piping.