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range of different surface textures to
meet requirements. In addition to the
well-established functions of transverse
brushing and spraying, longitudinal
brushing and spraying — and even the
application of a diagonal finish — are
possible. Meander spraying is a special
option: this method permits transverse
spraying during uninterrupted travel.
What is more, Wirtgen is continually
advancing the associated components to
ensure an optimum surface texture. The
brush-cleaning unit of the TCM 180i is
one prime example.
The TCM 180i is the ideal teammate for the two SP 1500 pavers.
fresh concrete from premature drying
during its hardening phase.
The retarder enables the surface
mortar to be swept off, exposing the
high-grade broken aggregate in the
top-layer concrete. Depending on
weather conditions, this can be done
some four hours or more after paving.
This gives the concrete pavement
the required peak-to-valley depth
and lasting grip. A curing agent is
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once again sprayed over the exposed
aggregate.
Key player in concrete paving
Unlike in the process selected for the
A7, in other countries, the TCM 180i is
also used to create the desired texture.
In this process, the machine moves a
brush across the entire concrete surface.
When used in this way, the Wirtgen
texture-curing machine can create a
Special feature: hot-water
system for easy cleaning
Cleaning the spray systems of curing
machines economically is something of
a challenge. With this in mind, Wirtgen
has integrated a hot-water system
with a 90-litre tank in the TCM 180i.
With this system, any curing agent
adhering to the inside of the pipes can
be completely removed with water up to
60°C and the entire spray system quickly
and reliably cleaned — all at the push of
a button.
MARCH 2019
11