Bitumen Roads protection material
It is known to everyone that
development of motor road network in any country reflects the potential of the
country's general economic development.
In 20th century, roads came to
our homes, and at the present, every second person of us spends a half of his
or her working time as a driver or passenger.
The roads we take are those
enabling us to reach the necessary place fast and without time-consuming
traffic jams and crashes, and in many cases this depends on the quality of road
pavement.
Asphalt
millings shows considerable strength, impermeability and resistance to
water, and the ability of elastic and plastic deformation. It provides
smoothness and elasticity of road pavement, comparatively noiseless traffic,
and good road grip of wheel tires.
Unfortunately, The asphalt
concrete, which is one of the greatest inventions of mankind unrivalled to the
present time, loses all these positive properties in 2 to 5 years after the
road is built.
Since the advent of asphalt
millings, best inventors in the field of road building have been trying to
prolong the asphalt concrete service life by using various traditional methods
such as strengthening the material with various polymers , road pavements
impregnation with various oils, road pavement reinforcement with fabric, etc.
All the above methods result in
sharp increase in the road pavement cost, and what is even more important,
deteriorate the road pavement properties such as road grip of wheel tires and
so on.
The search of conventional
solution aimed at strengthening the asphalt concrete mixtures and improvement
of repair methods is being conducted day and night by leading road-building
specialists of the world. However, radical solutions of this problem require
another approach and another conception.
The use of material TL is exactly
such a solution. The new approach is based on the simplest intention to seal
off the road from the action if factors causing damage to its pavement. This
solution is a breakthrough in road building and maintenance, and material TL
has corroborated its serviceability on the roads of Europe, America, Africa and
Asia. The material is unique in its simple production and easy application.
TL-2000 is a black liquid single
component micro-bitumen polymer composition asphalt rejuvenator to be applied
to the surface of asphalt concrete road in a thin layer by pouring or spraying
and subsequent spreading. A thin-film coating is thus created. The hardening
time is 40 to 60 minutes (depending on the ambient temperature), i.e., in 40 to
60 minutes the road may be opened for traffic.
The method being proposed is
compared with the existing ones in the table below
TL consumption is 0.7 to
1.5kg/m^2 depending on the road pavement condition. Adhesion of the material to
the road surface primarily occurs through chemical combination with the Bitumen additives
The active gaseous component of
TL penetrates into bulk of asphalt concrete to a depth of 4 cm and chemically
combines with the bitumen forming a copolymer bitumen composition having the
necessary plastic and elastic properties.
Except for rejuvenation, TL
performs the following main functions. After its application to the road
surface, and complete hardening (complete polymerization), we obtain a thin
membrane coating preventing penetration of water and gases including ozone into
the road pavement and protect the road from ultraviolet and infrared solar
radiation and various chemicals.
TL-2000 does not contain solvents
and does not cause any damage to the road.
The material allows an increase
in the road grip of a rubber tire by about 20 to 30% and thereby considerably
shortens the braking distance and improves the traffic safety.
It is possible to produce and
apply coloured modifications of TL. for instance, the road section with
especially dangerous traffic conditions can be made red with an increased
coefficient of friction, a parking place and be made green, etc.
TL-2000 can be used not for road
coating or asphalt maintenance only. The available modifications of TL allow
other applications as well. For instance, the TL-S modification shows
properties of rubber in addition to the above-described properties.
The material is easily and
quickly applied to underground concrete surfaces by using an air compressor or
with a hand brush, ensuring perfect damp sealing.
The coating does not pass water at a pressure of
up to 6atm. the work is done without material heating.
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