Contact us Websites TUNNEL PAINTING TUNNEL CLEANING ACOUSTIC PANEL CLEANING

	In this section:
	- Hydro- scarification tunnel surfaces
	- Asphalt roughing and emergency lanes treatment
	Tunnel surfaces hydro-scarification and re-painting
	Working cycle				Method
	- Surfaces hydro-scarification through very high water pressure (2000 bar) with relative equipment set on a truck and automatic recovery system (roadway is left perfectly clean);				- Cleaning and/or protection of roadway pavement and of existent horizontal and vertical road signs;
	- Application of a suitable primer for concrete surfaces;
	- Application of two or three coats of varnish to choose between the cycles (see section "Paintings);
	- Residues transportation to landfill and relative disposal;
	When select this cycle				TECHNICAL NOTE After hydro- scarification activity, the surface treated will appear irregular. In order to obtain a perfectly smooth surface (the optimum for every painting cycle), it is necessary to study a “shaving” cycle for the concrete to be realized with cement mortar.
	- Continuous painting and ordinary maintenance cycles realized in the tunnels lead to paint detachment, as a consequence of the varnish films applied in the course of time. It is esteemed that with one painting cycle per year, these phenomenon will appear after 10-15 years. In these cases the total removal of existing paints allows to restart with standard maintenance cycles;
	When avoid this cycle
	Articles & Analysis (only Italian)
	Strade & Autostrade n.84 - 6 Novembre/Dicembre 2010 "La preparazione delle superfici"
	Images
	Asphalt roughening
	Working cycle				Method
	When select this cycle				NOTA
	When avoid this cycle
	Articles & Analysis (only Italian)
	Images

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