| Lina Bertulienė   Research of Methods for Determining the Strength of Subgrade of 
Road Pavement   
			
				| Conference Information: | 9th International Conference on Environmental 
		Engineering, MAY 22-24, 2014 Vilnius, LITHUANIA |  
				| Source: | ICEE-2014 - International Conference on Environmental 
		Engineering |  
				| Book Series: | International Conference on Environmental Engineering 
		(ICEE) Selected papers |  
				| ISSN: | ISSN 2029-7092 online |  
				| ISBN: | 978-609-457-640-9 / 978-609-457-690-4 CD |  
				| Year: | 2014 |  
				| Publisher: | Vilnius Gediminas Technical University Press Technika |  
		View full text in PDF format Abstract Pavement structural strength is one of the main indices to determine pavement ability to carry traffic loads. The strength of separate layers 
of  flexible  pavement  structures  and  of  the whole  pavement  structure  can  be  calculated  during  their  design.  It  is  very  important  and 
necessary to control whether, the strength of the newly built structural layers corresponds to their design strength in road construction and 
reconstruction. For this purpose, various methods for determining pavement structural strength are used. This article studies methods for 
determining structural pavement strength, assesses the strength measuring devices using static and dynamic methods. In order to identify 
and compare the accuracy of test data collected by using static and dynamic methods the comparative measurements were carried out on a 
base course of experimental road section by  four measuring devices. Further results of the research of these results will enable to select 
the most suitable measuring method. Statistical analysis and assessment of research results obtained on the subgrade of road pavement. 
   Keywords:  road pavement; measuring methods; traffic loads; pavement strength; subgrade.   |