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TM 804 SH

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tecnologie seam and verge sealing

working seam

verge sealing

TM 504

TM 600 SKH

KSM 100

micro asphalt surfacing maschines

guard vehicles for forrest workers

Deutsche Version

VERGE SEALING WITH THE SELFPROPELLED Weiro® TM 504 SKH
To avoid a later water penetration into the lower layers of an asphalt road the surfaces at higher verges of the asphalt layers should always be sealed with hot bitumen.


According to the newly published LEAFLET "LAYERS, SEAMS AND VERGE FORMATION" (MSNAR) the hot bitumen to be applied has to amount to 1.5 kg/m² for horizontal surfaces and to approx. 4.0 kg/m² for inclined surfaces. The application of the hot bitumen at the higher verges is carried out in an economical way and an exactly dosed quantity with the especially developed WEIRO® TM 504 SKH The working process of this new development is as follows: Binder blocks are charged from the top through a security flap into the stirring cooker and heated by a thermostat controlled high-power gas burner. Thermoconducting plates of temperature-resistant special steel in the burner chamber of the boiler bottom protect against the extremely hot combustion gases. Thus, the gentle and quick heating of even very sensitive binders is achieved without significantly more expensive thermal oil heating installations. After a partial melting of the binder mass the binder is mixed by connection of the stirrer and a homogeneous temperature distribution is achieved. After reaching the processing temperature the binder is circulated thus heating hoses, lines and the nozzle head.
The dosage of the binder is controlled by means of the spreading table and the slow speed indicator by the running speed and the spreading pressure.
By actuation of the electropneumatic valve at the driver's seat the injection nozzle is opened and closed. The nozzle head is manually preset to the respective spreading situation. During spreading the spreading height and the lateral position of the nozzle head can be hydraulically adapted by a control lever at the driver's seat.
A verge completely sealed with hot bitumen, thus reliably preventing a later water penetration into the lower layers, results. After completion of the spreading works the spreading lines are flushed by compressed air. Afterwards, the nozzle head is turned into a vertical position and can be completely emptied through a drain opening. A trouble-free start of work for the next action is guaranteed