The Institute of Structural Engineering and Materials Science in the University of Stavanger developed a new paving stone called High Pressure Paving Stones (HPPS) to withstand high point pressures. HPPS have a unique shape that spreads point pressure over a larger area, requiring less sand in the substructure than other paving options. They also allow for easy replacement of single blocks and estimated faster production. The HPPS design has been tested in laboratories and through simulations, with modifications to work with dry concrete production. A patent is pending and the university is seeking licensing and franchise partners.

1. HIGH PRESSURE PAVING STONES (HPPS)
Keywords: paving stone, high point pressure
Background
The Institute of Structural Engineering and Materials Science in the University of Stavanger
has developed a new paving stone design and technology for foundations exposed to great
stress.
Description
High point pressure can expose individual paving stones to extreme loads. The replacement of
the damaged paving stones is a difficult and expensive process by applying the traditional
locking systems. An industrial need appeared for an easy-to-use and more flexible layout where
high point pressure can expose individual paving stones to extreme loads.
Applications and benefits
- HPPPS unique shape makes the point
pressure on the individual blocks spread over a
much larger area
- Simulation on paper calculations show that
the use of HPPS will require 10-20 cm less sand
in the substructure than rectangular concrete
blocks, and 5-10 cm less sand in the
substructure than asphalt. Drainage capacity can
easily be included in the design, without
impairing the properties
- Easy replacement of single blocks of cover
for easier maintenance
- Estimated production time: 30 sec. pr.
Square meter (traditional paving stone, 10-12
sec.)
Figure HPPS prototypes.
Status
- Tested in Laboratories in small-scale
- Simulation on paper
- Modified design to work with “dry-concrete” production
IPR
Patent pending
We are seeking licensing and frenchise partners.