1 AFTHAP m Luis A. Agudo Fernández AFTHAP CONFERENCE REINFORCED AND PRESTRESSED CONCRETE PIPE, STEEL CYLINDER TYPE Module 1: Description Regulations

 The pipe is custom-designed, for the pressure and installation conditions along the longitudinal section of the pipeline.  The structural condition of rigid pipe simplifies the trenches filling, allowing easy to achieve filling materials.  The design is adapted to the compacting factor decided by the designer. AFTHAP m design

AFTHAP m The reinforcement of every stretch is adapted to its conditions. That reduces the cost and improves the coefficient of sustainability. Rating

AFTHAP m Prestressed pipe, Alhama de Murcia, 70´s, 0 – 36 atm

AFTHAP m The design can be adjusted to the desired bedding and compacting factor. The filling material is not very demanding. The material from the excavation can be used as filling, except for special cases. Rigid pipe

 Adaja (Ávila), sandy soil, flooding compaction  Curved alignment  Siphon pipe of Casteleiro, heterogeneous soil  High sloped alignment AFTHAP m Versatility to adjust to soil and alignment

 Reinforced concrete, with steel cylinder  Prestressed concrete, with steel cylinder › Embedded-cylinder type › Lined-cylinder type AFTHAP m Different typologies for different circumstances

 Welded joint  Bounded elastic joint AFTHAP m Different typologies for different circumstances

 3200 mm inside pipe, reinforced concrete, steel-cylinder  Fittings AFTHAP m Special pipes

 Self-supporting pipe Palmones 1986  Surge tank  Uderwater outfall  Cogeneration plant AFTHAP m Special pipes

AFTHAP m Pipe for jacking

 The concrete passivates the reinforcements and provides an efficient protection of the steel in the long term  Pipes of the Canal de Isabel II in use since late 40´s. AFTHAP m Durability

 Pipe from Plaza de Castilla in Madrid, late 40´s  Pipes of the CAT, 80´s AFTHAP m Inside coating keeps its properties without degrading

 Con acierto se ha dicho que, en el hormigón armado, el acero da fibra a la piedra mientras el hormigón da masa al acero…. Es, por eso, el más técnico de todos y el único al que verdaderamente puede aplicarse el título de “adecuo-resistente” › (Razón y ser de los tipos estructurales, Eduardo Torroja) AFTHAP m Madrid, 1947 (Canal Isabel II Report) Francia 1894, 1200 mm Tradition

AFTHAP m AFTHAP references since 1958

AFTHAP m AFTHAP references since 1958

 UNE-EN European Stantards › 639 Common requirements › 641 Reinforced concrete pipe, steel-cylinder type › 642 Prestressed concrete pipe, steel-cylinder type › 805 Requirements for system and components outside buildings  Instruction of Eduardo Torroja Institute for reinforced and prestressed concrete pipes 2007 AFTHAP m Regulations

AFTHAP m  It includes and broadens the UNE – EN European Standards  Updated in 2007 by the IETCC and CEDEX is one of the most modern and complete  It meets all the conditions of the European standard and exceeds its requirements in some points  The current manufacturing allows to meet and even exceed widely the requirements of the standards in some points Instruction of Eduardo Torroja Institute for reinforced or prestressed concrete pipes

 AFTHAP pipes have the DIT seal certified by the IETCC  The DIT seal ranks with an EN seal, is applied when there is not product UNE standard, even though is more complete (includes use control in addition to manufacturing control)  The documentation of the DIT is public, and can be consulted on our web AFTHAP m STANDARDIZATION