A comprehensive review on non-destructive testing using LWD and Geogauge for quick QC/QA of pavement layers

S Dwivedi, SK Suman - Innovative Infrastructure Solutions, 2023 - Springer
Roads are extremely important to a country's socioeconomic growth. Pavement performance
depends on its ability to carry commercial traffic over its design life. During the construction …

INSTRUMENTATION AND TESTING FOR ROAD CONDITION MONITORING–A STATE-OF-THE-ART REVIEW

DM Barbieri, B Lou - NDT & E International, 2024 - Elsevier
The sensing instrumentation and testing operations routinely implemented in-situ to monitor
the condition of both paved (flexible, rigid) and unpaved roads are critically reviewed: image …

Prediction of primary deformation modulus based on bearing capacity: A case on forest road with a light falling weight deflectometer zorn ZFG 3000 GPS

SM Grajewski - Forests, 2022 - mdpi.com
Bearing capacity and compaction are among the most important and frequently used
geotechnical parameters in road construction. The aim of this study was to determine the …

Comparative study on structural evaluation of flexible pavement using BBD and FWD

R Sanjay, S Tejeshwini, KH Mamatha… - Materials Today …, 2022 - Elsevier
Flexible pavements undergo deterioration with increase in heavy traffic. Thus, there is a
need to evaluate the existing pavement condition and undertake appropriate maintenance …

Stiffness-based quality control evaluation of modified subgrade soil using lightweight deflectometer

R Kumar, VK Adigopula Jr… - Journal of Materials in …, 2017 - ascelibrary.org
Despite the availability of reliable stiffness-based quality control evaluation techniques,
developing countries still adopt traditional density-based quality control assessment on …

Evaluation of light falling weight deflectometer for in situ measurement of secondary deformation modulus of various forest road pavements

SM Grajewski - Croatian Journal of Forest Engineering: Journal for …, 2023 - hrcak.srce.hr
Sažetak Roads in forests are necessary for proper forest management and active protection
of the natural environment. They facilitate tourism and recreation and have a very important …

In-situ assessment of dynamic deformation modulus of pavement layers using light weight deflectometer

SR Duddu, V Kommanamanchi, H Chennarapu… - Transportation …, 2024 - Springer
The light-weight deflectometer (LWD) device provides a quick, consistent, direct
measurement of dynamic deformation modulus (E LWD) and an integrated way to …

Backcalculation of in-situ nonlinear viscoelastic properties of subgrade using a finite element-based machine learning approach

H Fan, F Gu, J Zhang, J Peng, J Zheng - Transportation Geotechnics, 2024 - Elsevier
This study aimed to develop a method to determine nonlinear viscoelastic properties of
subgrade soil using the light weight deflectometer (LWD) test. Firstly, a constitutive model …

Back‐Calculation of Soil Modulus from PFWD Based on a Viscoelastic Model

R Zhang, T Ren, MA Khan, Y Teng… - Advances in Civil …, 2019 - Wiley Online Library
To improve the accuracy of back‐calculation of soil modulus using the portable falling
weight deflectometer (PFWD), a viscoelastic method (VEM) overcoming the limitations of the …

Back-Calculation of Nonlinear Properties of Subgrade Using a New In Situ Nondestructive Testing Approach Based on Loading Sequence

H Fan, J Zhang, J Zheng - International Journal of Geomechanics, 2024 - ascelibrary.org
This study aims to develop a new in situ nondestructive testing (NDT) method to determine
nonlinear parameters of subgrade soils and to establish a method to calculate the subgrade …