poniedziałek, 23 maj 2016 10:40

Kruszywa do warstw ścieralnych nawierzchni

Kruszywo przeznaczone do warstw ścieralnych nawierzchni drogowych powinno cechować się kilkoma właściwościami. Podstawowe wymagania dotyczą odporności na rozdrabnianie (LA), trwałości (mrozoodporność), przyczepności do bitumów oraz odporności na polerowanie (PSV). Dodatkowo od kruszyw używanych do budowy nawierzchni jasnych lub rozjaśnianych wymaga się odpowiedniej barwy (wskaźnik luminancji), która ma być jednym z czynników gwarantujących bezpieczeństwo w warunkach ograniczonego oświetlenia lub występowania wilgoci i opadów.
Zgodnie z zaleceniami jasne kruszywa należy stosować w miejscach szczególnie niebezpiecznych (przejścia dla pieszych, skrzyżowania, tunele).

Dział: Innowacje

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