Relationship of Road Pavement Deformation Moduli, Determined by Different Methods

Deformations, caused by the axle loads of moving vehicles, are one of the main causes for pavement degradation. Measurement of elastic deflections is the best way to identify this effect. Currently, pavement deflections are most widely measured by the Falling Weight Deflectometer (FWD). Lithuanian s...

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Main Author: Giedrius Siaudinis
Format: Article
Language:English
Published: Riga Technical University Press 2006-06-01
Series:The Baltic Journal of Road and Bridge Engineering
Subjects:
Online Access:https://bjrbe-journals.rtu.lv/article/view/3921
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author Giedrius Siaudinis
author_facet Giedrius Siaudinis
author_sort Giedrius Siaudinis
collection DOAJ
description Deformations, caused by the axle loads of moving vehicles, are one of the main causes for pavement degradation. Measurement of elastic deflections is the best way to identify this effect. Currently, pavement deflections are most widely measured by the Falling Weight Deflectometer (FWD). Lithuanian standard LST 1360.5 "Soils for the motor roads" defines the measurement of deformations by static testing equipment at the top of each structural pavement layer. Based on the FWD-measured deflections at pavement surface, it is possible to calculate deformation moduli of structural pavement layers. In Lithuania deformation moduli are calculated by the ELMOD (Evaluation of Layer Moduli and Overlay Design) software. The results of experimental investigation of deformations of structural pavement layers by static and dynamic devices showed that the structural strength of road pavement, measured by the FWD, is close to the strength, measured by a static testing device. There is a linear relationship between E moduli, determined by static and dynamic methods. Investigation shows that the Falling Weight Deflectometer is suitable to determine the structural strength of investigated road pavements. However, more detailed investigations are necessary to identify the suitability of FWD to determine the structural strength of the other types of road pavement structures.
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spelling doaj-art-25a5c3dfcf8642d68edeced346de7aa72025-08-20T02:50:30ZengRiga Technical University PressThe Baltic Journal of Road and Bridge Engineering1822-427X1822-42882006-06-011277812213Relationship of Road Pavement Deformation Moduli, Determined by Different MethodsGiedrius Siaudinis0Dept of Roads, Vilnius Gediminas Technical University, Sauletekio al. 11, LT-10223 Vilnius, LithuaniaDeformations, caused by the axle loads of moving vehicles, are one of the main causes for pavement degradation. Measurement of elastic deflections is the best way to identify this effect. Currently, pavement deflections are most widely measured by the Falling Weight Deflectometer (FWD). Lithuanian standard LST 1360.5 "Soils for the motor roads" defines the measurement of deformations by static testing equipment at the top of each structural pavement layer. Based on the FWD-measured deflections at pavement surface, it is possible to calculate deformation moduli of structural pavement layers. In Lithuania deformation moduli are calculated by the ELMOD (Evaluation of Layer Moduli and Overlay Design) software. The results of experimental investigation of deformations of structural pavement layers by static and dynamic devices showed that the structural strength of road pavement, measured by the FWD, is close to the strength, measured by a static testing device. There is a linear relationship between E moduli, determined by static and dynamic methods. Investigation shows that the Falling Weight Deflectometer is suitable to determine the structural strength of investigated road pavements. However, more detailed investigations are necessary to identify the suitability of FWD to determine the structural strength of the other types of road pavement structures.https://bjrbe-journals.rtu.lv/article/view/3921road pavement deformationsstructural layers of road pavementpavement deformation moduluscompatibility criterionrelationship
spellingShingle Giedrius Siaudinis
Relationship of Road Pavement Deformation Moduli, Determined by Different Methods
The Baltic Journal of Road and Bridge Engineering
road pavement deformations
structural layers of road pavement
pavement deformation modulus
compatibility criterion
relationship
title Relationship of Road Pavement Deformation Moduli, Determined by Different Methods
title_full Relationship of Road Pavement Deformation Moduli, Determined by Different Methods
title_fullStr Relationship of Road Pavement Deformation Moduli, Determined by Different Methods
title_full_unstemmed Relationship of Road Pavement Deformation Moduli, Determined by Different Methods
title_short Relationship of Road Pavement Deformation Moduli, Determined by Different Methods
title_sort relationship of road pavement deformation moduli determined by different methods
topic road pavement deformations
structural layers of road pavement
pavement deformation modulus
compatibility criterion
relationship
url https://bjrbe-journals.rtu.lv/article/view/3921
work_keys_str_mv AT giedriussiaudinis relationshipofroadpavementdeformationmodulideterminedbydifferentmethods