6. Conclusion

Concreting operations enable concrete to be placed in the formworks provided (see [C 2 228] ). Different technologies are used for different parts of the structure. For the majority of concrete poured on building sites, this operation is carried out using a bucket fitted with a sleeve. The concrete is then clamped using vibrating needles (internal vibration) which, when plunged into the core of the concrete, ensure that it is clamped to the required strength, provided that the needle is correctly selected and the rules of the trade are followed. The pumping technique, which is becoming increasingly...