Concrete pump hoses

How concrete pump hoses are designed?

Concrete pump hoses consist of three main parts:

• inner layer — usually made of SBR, NR, or BR rubber and characterized by abrasion resistance. It also has antistatic properties; 
• reinforcement — usually in the form of a steel braid with several layers;
• outer layer — is made from similar materials as the inner layer and also has high abrasion resistance. In addition, it is also insensitive to ozone and weather conditions.

Thanks to this design, concrete pump hoses guarantee a high level of safety and durability. In addition, they are characterized by their high elasticity and relatively low weight, which makes work much easier.

What are the key parameters of a concrete pump hose?

The key parameters of a concrete pump hose are:

• inner diameter (nominal) — it is on the basis of this that the appropriate concrete pump hose is selected to match the capacity of the pump;
• outer diameter — less important, but in some cases worth taking into account; 
• working pressure — the maximum pressure for consistent and efficient operation of the hose;
• burst pressure — defines the limit at which the walls of the concrete pump hose will burst; 
• bending radius — indicates the maximum bend after which the hose will break; 
• unit weight — gives the weight of the hose (usually in kg/m).

Which applications are concrete pump hoses used for?

The main use of concrete pump hoses is the supply of concrete on-site, for which you also need a suitable pump. In this case, construction crews most often use hoses with a length of 3 to 5 metres, which have a diameter of 4-5 inches.

In addition to this, concrete pump hoses are also useful for special works such as piling. Then they usually have a longer length (from 10 to even 30 metres)