Structural evaluation of perpetual flexible pavements for various climatic conditions

U radu je prikazano istraživanje svojstava trajnih savitljivih kolnika na vrlo prometnim izvangradskim cestama koje se nalaze u različitim klimatskim uvjetima. Kako bi se procijenilo ponašanje takvih konstrukcija, uspoređena su njihova ponašanja u nekoliko gradova u Iranu (Rašt, Teheran i Ahvaz). Dobiveno je da je primjena trajnih savitljivih kolnika dobra osobito za ceste s velikim prometnim opterećenjem. Ovi kolnici imaju znatno bolju otpornost na pukotine koje nastaju uslijed zamora u usporedbi s uobičajenim kolnicima.Properties of perpetual flexible pavements on heavily-trafficked rural roadways in different climatic conditions are analysed in the paper. In order to evaluate performance of such pavements, their behaviour is compared in several towns in Iran (Rasht, Tehran, and Ahvaz). It was established that the use of perpetual pavements is appropriate, especially for high-traffic-volume roadways. Perpetual flexible pavements exhibit much better resistance to fatigue cracking when compared to conventional pavements