Adaptation of height differences

The level adjustment of protruding road installations is the prerequisite for a perfect winter service. If a cover protrudes above the level, the complete construction of the shaft will be damaged by the snow plow. Furthermore, the risk of “flying manhole covers” should not be underestimated.
manhole covers

manhole covers

Whether it concerns covers of drinking water, sewage, control, cable or duct shafts, almost every shaft construction projects beyond the road level after a few years.

The difference in level is usually caused by the fact that the adjoining asphalt is stuck over time, the shaft construction, however, stops at the original height.

street internals

What happens if it
is not renovated?

If protruding installations are not directly adapted to the street level, the entire structure will be affected. Furthermore, the covers provide a potential projectile for clearance vehicles.

Every year, "flying covers" cause several personal injury accidents, which the road operator is liable for.

channel grids

Adjustments with

The main field of application of the mortar system HAAS® HP4-3K is the alignment and contraction of protruding internals.

The product develops an enormous liability to the old stock, can be pulled out on grain size or "to zero" and is already fully loadable after shortest time, whereby the shut-off times are very low.

framework agreements

Due to the constantly growing demand of our customers from the public sector, such as cities, municipalities, road maintenance and wastewater associations, we also offer individual framework contracts for the maintenance and rehabilitation of height and level differences, especially of overhanging manholes of all kinds.

Are you interested in an adjustment on the ground?

manhole cover before renovation
level difference after the renovation with HAAS® HP4-3K
manhole cover after the renovation with HAAS® HP4-3K
fast and safe with HAAS® HP4-3K

information haas® HP4-3K


"Especially in the warranty period of projects, it is very often to settle the asphalt. With HAAS® HP4-3K we can do the time-consuming milling and remapping as the different Levels can be adjusted permanently and quickly. "
"Due to the simple and fast processing of the product HAAS® HP4-3K we can react very quickly and flexibly to outbreak sites."
- Funder Max GmbH
"We had massive problems to rehabilitate a pothole in an extremely busy area, all cold and hot mix always kept very short - then we tried it with HAAS ® HP4-3K and were astonished when it was able to withstand the strain even after 7 million crossings."
"Since our surfaces are exposed to permanent forklift and ant traffic, we have HAAS® HP4-3K a very satisfactory solution for found. Not only the strength, but also the extremely short shut-off times are crucial for us."
- Dachser Austria GmbH
"With the product HAAS® HP4-3K we have the best grip on the constantly loaded access ramps of our forklift trucks."
- RHI Magnesita GmbH
"HAAS® HP4-3K is our" allrounder because we can use it anywhere and bind it everywhere. We compensate different heights and use it for pothole rehabilitation. Since the surfaces can be driven around so quickly, we can renovate at any time and are flexible. "
- Mondi GmbH
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