UHPC - Precasting of elements

UHPC - Ultra High Performance Concrete offers architects and designers today a variety of novel design option, especially in the manucture of precast concrete elements. The difference in the production of UHPC and standard concrete elements can be described as follows.

UHPC Compressive strength: 100 MPa to 250 MPa

Standard concrete compressive strength: 10 MPa to 80 MPa

UHPC flexural strength: 11 MPa to 30 MPa

Standard Concrete flexural strength: 1 MPa to 5 MPa

The distance between steel reinforcement and concrete surface can be chosen very low, since UHPC materials an extreme has little to no porosity.

In order to prevent corrosion of the reinforcement, a large cover must be selected by standard concrete

UHPC materials achieve their strength without the use of gravel. Thus, the grain size of the aggregate is much lower than standard concrete. The distances between the reinforcing bars can be chosen to be much lower without the danger of voids being created during casting.

Standard concrete requires a gravel surcharge. Due to the grain size of the gravel, the reinforcing bars must be laid with a minimum distance.

The adhesion between UHPC materials and steel is several times higher than that of standard concretes due to the almost 100% wetting of the steel surface.

Due to the high compressive strength of UHPC, preloaded elements can be given a higher preload force or the component geometry can be made smaller.

Our UHPC Materials Reach the standard 70% of their nominal strength after less than 48 hours. Thus, it is possible to remove the elements much faster from the form.

UHPC elements can take on higher forces than standard concretes with low geometry.

Applications

Double walls

Pre stressed elements

Tube

Bridgedeck elements

Stairs

Piles

Supports

Special designs