hiDCon®

hiDCon® is a cement-bound building material that can absorb deformations of up to 50% of its component height under defined loads. It is used in construction to optimise the structure with controlled allowance of deformations or to absorb energy in dynamic applications.

Examples of applications:

Tunnel construction with compressive or swelling rock.
Limiting anchor tensile forces
Infrastructure constructions in creep slopes
Deformation absorption under thermal effects (icing)
Deformation absorption under dynamic load

Convergent shotcrete lining with high load-bearing capacity

In 2004, the first tunnel section was equipped with the highly deformable hiDCon® concrete elements. The beam elements were installed in the shotcrete lining to support the rock while allowing controlled convergence of the tunnel. The hiDCon® elements have been continuously developed and a number of applications, mostly in compressive or swelling conditions, could be realised.

Modular squeeze system

The most important properties of hiDCon® elements:

High deformation capacity with almost constant load resistance
Increasing load resistance at the end of the deformation capacity
Variability of shape and dimensions of the crush elements
Control of load-bearing and deformation properties
Use of approved base materials
Insignificant creep with constant long-term loading

High ductility - high stress level

are generated by

the high-strength concrete matrix with porous aggregates
specially formed reinforcement with fibres
and controlled closing of the pores with prevented lateral expansion until material consolidation (e*)