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Sustainability 2016, 8(12), 1328; doi:10.3390/su8121328

Design of Frost Resistant Pavement Structure Based on Road Weather Stations (RWSs) Data

1
Road Research Institute, Vilnius Gediminas Technical University, Linkmenų str. 28, Vilnius LT-08217, Lithuania
2
Department of Urban Engineering, Vilnius Gediminas Technical University, Saulėtekio ave. 11, Vilnius LT-10223, Lithuania
*
Author to whom correspondence should be addressed.
Academic Editor: Marc A. Rosen
Received: 7 June 2016 / Revised: 21 November 2016 / Accepted: 9 December 2016 / Published: 16 December 2016
(This article belongs to the Section Sustainable Engineering and Science)
View Full-Text   |   Download PDF [2336 KB, uploaded 16 December 2016]   |  

Abstract

Frost is a decisive factor influencing pavement performance in cold countries. In the EU, millions of euros are spent annually on winter maintenance. About one-third of the maintenance budget is allocated to rehabilitation due to the negative impact of frost. The negative effect of frost is restricted by using non-frost-susceptible materials within the frost zone and regulating water accumulation. However, experience shows that the thickness of constructed pavement structure is often inadequate and that frost penetrates into the subgrade of frost-susceptible materials. The aim of this paper is to introduce the thickness calculation approach of the frost resistant pavement structure using road weather station (RWS) data. The subgrade susceptibility to frost and the number of equivalent single axle loads (ESALs) are considered as factors too. The calculated thickness of the frost resistant pavement structure is corrected according to the specific local conditions. After performing a statistical analysis of 2012–2014 data pertaining to 26 RWSs, Lithuania was divided into four regions according to the maximum frost depths, where the maximum values depending on RWS location varied from 110.4 cm to 179.1 cm. View Full-Text
Keywords: frost resistant pavement structure; frost depth; road weather station (RWS); pavement thickness; frost depth regions; frost resistant pavement thickness frost resistant pavement structure; frost depth; road weather station (RWS); pavement thickness; frost depth regions; frost resistant pavement thickness
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MDPI and ACS Style

Vaitkus, A.; Gražulytė, J.; Skrodenis, E.; Kravcovas, I. Design of Frost Resistant Pavement Structure Based on Road Weather Stations (RWSs) Data. Sustainability 2016, 8, 1328.

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