H<16 cm
H=16-30cm
For concrete elements of > 30 cm thick
At a height of less than 30 cm, RecoMax does not require additional reinforcements. Supports should be used for heights above 30 cm.
RecoMax must be stiffened up to a height of 90 cm by welding a reinforcing mesh. Above 90 cm, additional stays made of rebars should be used.
Properties
| Category | Joint type |
Roughness βct |
Coefficient of friction μ |
| Lower | Very smooth | 0,0 | 0,5 |
| Low | Smooth | 1,4 | 0,6 |
| Medium | Rough | 2,0 | 0,7 |
| Highest | Toothed | 2,4 | 1,0 |
μ - the friction coefficient,
βct - the roughness,
b - the construction joint width,
fck - the concrete strength,
as - the steel cross-section,
fyd - the steel strength,
VEd - the force acting in the joint,
η1 - the correction coefficient,
σNd - the normal perpendicular tension in the joint,
α - the reinforcement angle in the joint,
fcd - the concrete strength taking into account the safety factor.
