Granella\u00ae<\/sup> by the Pittini Group<\/strong> will be the protagonist of the ordinary maintenance program involving large sections of the road surface and joints of the road network granted to CONCESSIONI AUTOSTRADALI VENETE – CAV SPA<\/a>.<\/p>\n This innovative material originates as a by-product of industrial waste and gains new life in a different production cycle. \u00a0In fact, the Pittini Group has succeeded in recycling steel production waste and transforming it into a new product with extremely interesting physical and mechanical characteristics, which is much valued as an artificial aggregate in the construction of bituminous surfaces.<\/p>\n The intensive traffic of heavy vehicles, which affects the section of the A4 Mestre<\/strong> by-pass, an important artery for road traffic in Northern Italy, requires special attention as far as safety and maintenance are concerned, which are the main causes of inconvenience to users and disruption.<\/p>\n In the quest to draw together the need to guarantee the performance of the road surface for its duration and expected load conditions and to ensure environmental sustainability, Works Management has chosen Pittini – Ferriere Nord as its supplier.<\/p>\n The adhesion coefficient depends on the characteristics of the road surface, especially the roughness of the wear layer. Continuous stresses produced by traffic cause a progressive deterioration of road surface performance, which depends on polishing of aggregates: in fact, reducing surface porosity decreases adhesion.<\/p>\n The use of Granella\u00ae<\/sup> increases the micro-roughness of the road surface and ensures durability, since deterioration of the mechanical characteristics, resistance to fragmentation and of the functional features is very slow, even where there are significant volumes of traffic.<\/p>\nGranella\u00ae is better than natural aggregates<\/h2>\n