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Relevant bibliographies by topics / Light Weight Deflectometer (LWD)

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Academic literature on the topic 'Light Weight Deflectometer (LWD)'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "Light Weight Deflectometer (LWD)"

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Diana, Iffah Lubna, Indra Nurtjahjaningtyas, and Akhmad Hasanuddin. "Relationship between Highway Damage Assessment Method and Light Weight Deflectometer (LWD)." MEDIA KOMUNIKASI TEKNIK SIPIL 30, no. 1 (2024): 105–14. http://dx.doi.org/10.14710/mkts.v30i1.56617.

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The Tegal Siwalan-Banyuanyar Highway in Probolinggo Regency has been damaged at several points and has not received any maintenance for the last 7 years. This has a huge impact on road users because it can interfere with driving comfort and safety, so it is necessary to analyze the road damage that has occurred, including the type of damage and an assessment of road conditions. The Bina Marga method and a light-weight deflectometer (LWD) can be used to assess road deflection in order to assess road condition. The results of this study obtained priority order values for each segment that were i

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Azzidul Piktor, Riqqi, Asep Taufik Hudaya, and Siegfried Syafier. "KONSISTENSI LWD (LIGHT WEIGHT DEFLECTOMETER) PUSJATAN UNTUK JALAN KERIKIL." Cerdika: Jurnal Ilmiah Indonesia 3, no. 12 (2023): 1172–80. http://dx.doi.org/10.59141/cerdika.v3i12.720.

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Infrastruktur jalan merupakan tulang punggung dalam sistem transportasi suatu negara. Perkerasan jalan sangat penting dalam mendukung infrastruktur transportasi yang efisien dan berkelanjutan. Salah satu jenis perkerasan jalan yang sering digunakan adalah perkerasan jalan berkerikil. Perkerasan jalan berkerikil sering digunakan di wilayah pedesaan atau daerah dengan lalu lintas ringan hingga sedang. LWD (Light Weight Deflectometer) merupakan salah satu alat yang digunakan untuk mengukur kekuatan struktural dari suatu sistem perkerasan jalan terutama untuk jalan-jalan yang tanpa penutup. LWD Pu

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Caroles, L., A. R. Djamaluddin, A. A. Amiruddin, and A. Arsyad. "Correlation of modulus elasticity of Falling Weight Deflectometer (FWD) towards Light Weight Deflectometer (LWD) laboratory." IOP Conference Series: Earth and Environmental Science 419 (February 8, 2020): 012039. http://dx.doi.org/10.1088/1755-1315/419/1/012039.

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Nurtjahjaningtyas, Indra, Paksitya Purnama Putra, and Raffio Rasta Darmawan. "Korelasi Modulus Elastisitas Light Weight Deflectometer dan California Bearing Ratio." Berkala Forum Studi Transportasi antar Perguruan Tinggi 2, no. 3 (2024): 676–85. http://dx.doi.org/10.19184/berkalafstpt.v2i3.1285.

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Road pavement construction requires standard planning and evaluation of the foundation layer's structural strength. The commonly used standard is the California Bearing Ratio (CBR). In situ, road layer CBR value evaluation mainly uses a Dynamic Cone Penetrometer (DCP), Sand Cone, or direct CBR. Using these tools requires a lot of equipment, time, and human resources; therefore, more efficient and practical in situ tests such as Light Weight Deflectometer (LWD) are needed. This research was conducted to find any correlation between the results of the LWD test and the results of Field CBR and DC

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Mousavi, S. Hamed, Mohammed A. Gabr, and Roy H. Borden. "Subgrade resilient modulus prediction using light-weight deflectometer data." Canadian Geotechnical Journal 54, no. 3 (2017): 304–12. http://dx.doi.org/10.1139/cgj-2016-0062.

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Resilient modulus has been used for decades as an important parameter in pavement structure design. Resilient modulus, like other elasticity moduli, increases with increasing confining stress and decreases with increasing deviatoric stress. Several constitutive models have been proposed in the literature to calculate resilient modulus as a function of stress state. The most recent model, recommended by the Mechanistic–empirical pavement design guide (MEPDG) and used in this paper, calculates resilient modulus as a function of bulk stress, octahedral shear stress, and three fitting coefficients

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Sreejith, V. U., Ajitha T. Dr., and Haneef O. Nadheera. "Modulus based Approach of Lateritic Subgrade Soil Strength Evaluation Using Light Weight Deflectometer." Journal of Advances in Geotechnical Engineering 5, no. 2 (2022): 1–11. https://doi.org/10.5281/zenodo.7192728.

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Since density based approach of pavement evaluation have its own limitations, quality control procedures of compacted pavement layers across the globe is slowly shifting from density based to stiffness/strength based criteria. The stiffness based measurements are easy to measure and more reliable than the density based quality measurements. The light weight deflectometer (LWD), one of many cutting-edge methods for determining how stiff compacted layers are, is employed in this study as a quality control tool to evaluate the standard of compacted pavement layers. LWD was created to assess the s

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Larsson, Martin, Anna Niska, and Sigurdur Erlingsson. "Structural Stability of Cycle Paths—Introducing Cycle Path Deflection Bowl Parameters from FWD Measurements." Infrastructures 10, no. 1 (2024): 7. https://doi.org/10.3390/infrastructures10010007.

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A recurrent challenge on cycle paths are edge cracks, which affect the traffic safety and accessibility of cyclists and produce high maintenance costs. Being both structurally thinner and narrower structures than roads, the cycle paths are extra prone to this problem. A few passages of heavy vehicles in unfavourable conditions might be enough to break the edge. The load-bearing capacity of eight municipal cycle paths in Linköping, Sweden, were assessed by falling weight deflectometer (FWD) and light falling weight deflectometer (LWD) measurements during a year-long cycle. A set of alternative

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Kuttah, Dina. "Measurement of subgrade soil permanent deformations under repeated loadings during simple in-situ test." E3S Web of Conferences 544 (2024): 02006. http://dx.doi.org/10.1051/e3sconf/202454402006.

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is well known that permanent deformation has a significant influence on the performance of pavements because it leads an increase in maintenance operations and costs and reduces ride quality. Therefore, it is important to predict the permanent deformations during the design stage. Due to the fact that up to date there is no simple test equipment and procedure that enables a direct in-situ measurement permanent deformations of subgrade soil under repeated loading, the current research has been undertaken to evaluating new testing approach to fulfil this requirement. The current study deals with

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Kuttah, Dina. "Using Repeated Light-Weight Deflectometer Test Data to Predict Flexible Pavement Responses Based on the Mechanistic–Empirical Design Method." Construction Materials 4, no. 1 (2024): 216–37. http://dx.doi.org/10.3390/constrmater4010012.

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This study investigated the potential of lightweight deflectometer (LWD) data in predicting layer moduli and response measurements within the Mechanistic–Empirical Pavement Design Guide. To achieve this goal, field repeated LWD tests and laboratory repeated load triaxial tests were carried out on granular base material compacted at 3% and 6% water content, sandy subgrade soil compacted at 3%, 4% and 9% water content and silty sand subgrade soil compacted at 8% and 10% water content. The results revealed that substituting traditional repeated load triaxial (RLT) data with LWD data for predictin

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Permana, Nesta, and Siegfried Syafier. "KONSISTENSI LIGHT WEIGHT DEFLECTOMETER PUSAT PENELITIAN JALAN DAN JEMBATAN (PUSJATAN) PADA JALAN TANAH." Jurnal Teknik Sipil 14, no. 2 (2024): 179–89. https://doi.org/10.36546/tekniksipil.v14i2.1471.

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Infrastruktur jalan yang kuat memainkan peran penting dalam mendukung mobilitas masyarakat, pertumbuhan ekonomi, dan pengembangan wilayah. Perkerasan jalan tanah merupakan jenis perkerasan yang paling sering digunakan di daerah pedesaan atau wilayah dengan lalu lintas ringan hingga sedang. Keunggulannya meliputi biaya yang lebih rendah dibandingkan dengan perkerasan aspal serta kemudahan konstruksinya. Namun, tantangan utama perkerasan tanah terletak pada memastikan konsistensi dan stabilitas yang memadai, karena keberhasilan perkerasan bergantung pada pemadatan yang tepat. Pemadatan lapisan j

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Dissertations / Theses on the topic "Light Weight Deflectometer (LWD)"

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Burhani, Ahmadudin. "Correlation Study on the Falling Weight Deflectometer and Light Weight Deflectometer for the Local Pavement Systems." Ohio University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1470663356.

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Coleri, Erdem. "Relationship Between Resilient Modulus And Soil Index Properties Of Unbound Materials." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608660/index.pdf.

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In the mechanistic design approach, which has already been started to utilize in several countries, the variations in material properties are better taken into account based on fundemental engineering principles. Resilient modulus is the most important material property that is used in the mechanistic design since it describes the true martial performance of unbound pavement layers under traffic loading. In this thesis, the objective is to determine the resilient modulus, used in the mechanistic design of pavement structures, for the unbound material types used in Turkey and develop linear and

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Mataramba, Kankanamge Kasun Dilhara Wimalasena. "Evalutate the performance of geosynthetic reinforced subgrades under monotonic loading." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/235924/1/Kasun_Kankanamge_Thesis.pdf.

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A series of large-scale pavement model tests were conducted in a laboratory environment to investigate the effect of geosynthetics in improving the modulus of weak subgrades. Then, a series of supplement design charts that could be useful for industry practitioners to design geosynthetic reinforced flexible pavements were developed. The outcomes of this study promote the use of geosynthetics in road construction to make economical, environmentally friendly, climate resilient, and sustainable road infrastructure.

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Heathcote, Johan Henry. "Towards using the light falling weight deflectometer as a construction control device." Diss., 2016. http://hdl.handle.net/2263/57182.

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The Light Falling Weight Deflectometer (LFWD) is a dynamic non-destructive test developed to estimate the in-situ stiffness modulus of pavement materials. The technology of this device is very similar to that of the Falling Weight Deflectometer (FWD) to most closely simulate the loading rate and area of a single moving wheel. The LFWD is a portable scaled down hand operated version of the mechanical electrical FWD that applies an impulse load from a drop weight impacting a circular plate resting on the surface to impose various contact pressures through a calibrated system of rubber buffers. T

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Magalhães, Bruno Alberto da Cunha. "Comparação de diferentes métodos de avaliação da capacidade de carga de pavimentos rodoviários." Master's thesis, 2015. http://hdl.handle.net/1822/40470.

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Dissertação de mestrado integrado em Engenharia Civil<br>Nas últimas décadas, a rede rodoviária nacional sofreu um grande desenvolvimento tanto ao nível das infraestruturas existentes, como na construção de novas vias. Este desenvolvimento implica também a uma preocupação crescente na conservação e reabilitação da rede. Assim, de forma a aferir-se a verdadeira necessidade da sua reabilitação dos pavimentos existentes, é necessário realizar-se a avaliação da sua capacidade de carga, que é obtida com base em vários parâmetros tais como a deflexão, que por sua vez permite determinar o módulo

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Oliveira, Joaquim Pedro Mendes Vilela de. "Avaliação de diferentes métodos de ensaio para determinação da capacidade de carga da fundação de pavimentos rodoviários." Master's thesis, 2017. http://hdl.handle.net/1822/67244.

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Dissertação de Mestrado Integrado em Engenharia Civil<br>Com um crescimento de quase 700% no parque automóvel total em Portugal desde 1974 até 2010 (fonte: ACAP), a rede rodoviária tem obrigatoriamente de se adaptar e desenvolver. Com este progresso vem a adoção de novas soluções como a criação de novas estradas e a conservação/reabilitação da rede. O estudo destas soluções de pavimentos rodoviários baseia-se no conhecimento da capacidade de carga da sua fundação. No entanto, nem sempre existe a possibilidade de realizar uma caraterização in situ desta capacidade de carga, obter o seu módulo

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Book chapters on the topic "Light Weight Deflectometer (LWD)"

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Akey, Emily Katherine, Mariel W. Jones, Carlton L. Ho, and Aaron J. Rubin. "Measuring Railroad Ballast Modulus of Elasticity Using Light Weight Deflectometer." In Lecture Notes in Civil Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77234-5_22.

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Ordaz, M., and J. D. Doyle. "Stress distribution and influence depth from light weight deflectometer testing of thin flexible pavements." In Bituminous Mixtures and Pavements VIII. CRC Press, 2024. http://dx.doi.org/10.1201/9781003402541-85.

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"New Danish test method for the light weight deflectometer (LWD)." In Advances in Transportation Geotechnics. CRC Press, 2008. http://dx.doi.org/10.1201/9780203885949-24.

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Hejlesen, C., and S. Baltzer. "New Danish test method for the light weight deflectometer (LWD)." In Advances in Transportation Geotechnics. CRC Press, 2008. http://dx.doi.org/10.1201/9780203885949.ch19.

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Tompai Z. "Laboratory evaluation of new B&C Light Falling Weight Deflectometer." In Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering. IOS Press, 2009. https://doi.org/10.3233/978-1-60750-031-5-1088.

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A new Light Falling Weight Deflectometer of 163 mm plate diameter has been developed in Hungary by Andreas Ltd. Along with measuring the dynamic load bearing capacity of engineering fills and subgrade layers, the B&amp;C device is capable of measuring the compaction of the tested layer on the same spot.

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Lacey David, Look Burt, and Williams David. "Assessment of Relationship Between Insitu Modulus Derived from DCP and LFWD Testing." In Advances in Soil Mechanics and Geotechnical Engineering. IOS Press, 2013. https://doi.org/10.3233/978-1-61499-297-4-379.

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The quasi-static Light Falling Weight Deflectometer (LFWD) load test has been developed to directly estimate the modulus of a near surface profile. This paper considers the use of the LFWD as a geotechnical investigation and site profiling tool of near-surface profiles. The suitability of using the LFWD as such is discussed by comparison of the insitu modulus (ELFWD) determined by the LFWD with the results of Dynamic Cone Penetrometer (DCP) testing at three sites in South East Queensland, Australia. Analysis of the side-by-side testing indicates that the results of each test are related and th

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"Practical use of light weight deflectometer for pavement design." In Bearing Capacity of Roads, Railways and Airfields, Two Volume Set. CRC Press, 2009. http://dx.doi.org/10.1201/9780203865286-14.

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Hejlesen, C., H. Korsgaard, P. Jakobsen, and S. Baltzer. "Practical use of light weight deflectometer for pavement design." In Bearing Capacity of Roads, Railways and Airfields. CRC Press, 2009. http://dx.doi.org/10.1201/9780203865286.ch91.

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Burhani, Ahmadudin, Issam Khoury, Shad Sargand, and Roger Green. "Modified area under pavement profile for the light weight deflectometer measurements." In Advances in Materials and Pavement Performance Prediction II. CRC Press, 2020. http://dx.doi.org/10.1201/9781003027362-33.

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"A comparative subgrade evaluation using CBR, vane shear, light weight deflectometer, and resilient modulus tests." In Bearing Capacity of Roads, Railways and Airfields, Two Volume Set. CRC Press, 2009. http://dx.doi.org/10.1201/9780203865286-100.

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Conference papers on the topic "Light Weight Deflectometer (LWD)"

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Kessler, K. "Use of DCP (Dynamic Cone Penetrometer) and LWD (Light Weight Deflectometer) for QC/QA on Subgrade and Aggregate Base." In GeoHunan International Conference 2009. American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/41045(352)10.

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Yzenas, John J., and Kelly Cook. "Evaluation of Full/Partial Depth Reclamation of Secondary Roads Utilizing Sustainable Steel Slag Materials and the Light Weight Deflectometer (LWD)." In International Airfield and Highway Pavements Conference 2019. American Society of Civil Engineers, 2019. http://dx.doi.org/10.1061/9780784482452.024.

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Tehrani, Faraz S., and Christopher L. Meehan. "The Effect of Water Content on Light Weight Deflectometer Measurements." In GeoFlorida 2010. American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41095(365)92.

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Tirado, Cesar, Mehran Mazari, Cesar Carrasco, and Soheil Nazarian. "Evaluating Influence Depth of Light Weight Deflectometer through Finite Element Modeling." In Airfield and Highway Pavements 2015. American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784479216.070.

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Yousif, Nada A., Alaa M. Shaban, and Raid R. Almuhanna. "Use of light weight deflectometer in characterizing compaction quality of sand soils." In PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON RESEARCH ADVANCES IN ENGINEERING AND TECHNOLOGY - ITechCET 2022. AIP Publishing, 2024. http://dx.doi.org/10.1063/5.0186559.

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Shaban, Alaa M., Hawraa H. Elias, and Raid R. Almuhanna. "Assessing the strength properties of stabilized soils using a light weight deflectometer test." In 7TH INTERNATIONAL CONFERENCE ON ENGINEERING SCIENCES – ICES23. AIP Publishing, 2025. https://doi.org/10.1063/5.0264923.

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Kongkitkul, W., T. Saisawang, P. Thitithavoranan, P. Kaewluan, and T. Posribink. "Correlations between the Surface Stiffness Evaluated by Light-Weight Deflectometer and Degree of Compaction." In Geo-Shanghai 2014. American Society of Civil Engineers, 2014. http://dx.doi.org/10.1061/9780784413449.007.

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Baker, William J., and Christopher L. Meehan. "Continuous Compaction Control Measurements for Quality Assurance in Conjunction with Light Weight Deflectometer Target Modulus Values." In Geo-Congress 2020. American Society of Civil Engineers, 2020. http://dx.doi.org/10.1061/9780784482803.040.

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Kuttah, Dina. "Predicting the Resilient Moduli of Unbound Base Material Using Field and Laboratory Light-Weight Deflectometer Tests." In The 10th World Congress on Civil, Structural, and Environmental Engineering. Avestia Publishing, 2025. https://doi.org/10.11159/icgre25.101.

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Kuttah, Dina. "Layer Stiffness Moduli Measured by Light Weight Deflectometer Tests and Predicted by Backcalculation Process for Sandy Soil." In The 5th World Congress on Civil, Structural, and Environmental Engineering. Avestia Publishing, 2020. http://dx.doi.org/10.11159/icgre20.195.

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Reports on the topic "Light Weight Deflectometer (LWD)"

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Shin, Boonam, Nitin Tiwari, Peter J. Becker, and Antonio Bobet. Improved Light Weight Deflectometer Test (LWD) and Analysis. Purdue University, 2025. https://doi.org/10.5703/1288284317813.

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This study focused on improving light weight deflectometer (LWD) testing protocols and understanding material and equipment variability. The Indiana Department of Transportation (INDOT) adopted the LWD test for its efficiency and effectiveness in measuring soil stiffness, a crucial parameter for pavement structural layers. However, challenges remain for implementing LWD testing, particularly in small construction areas. There are also challenges with establishing standardized performance-related criteria for various subgrade treatments. To address these obstacles, this research aimed to develo

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Park, Sung Soo, Antonio Bobet, and Tommy E. Nantung. Correlation between Resilient Modulus (MR) of Soil, Light Weight Deflectometer (LWD), and Falling Weight Deflectometer (FWD). Purdue University, 2018. http://dx.doi.org/10.5703/1288284316651.

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Becker, Peter J. Using the Light Weight Deflectometer for Performance-Based Quality Assurance Testing of Cement Modified Subgrades. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317304.

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This report documents the findings from SPR-4230 (Alternative Quality Assurance Methods for Compacted Subgrade). The main objective of SPR-4230 involved establishing performance-related quality assurance (QA) test methods for pavement subgrade construction. Because INDOT generally prefers specifying subgrade treatment type IBC (i.e., 14-in. cement modified subgrade), this study focused on performance-based QA test methods for constructing cement modified subgrade. Moreover, INDOT prefers using light weight deflectometer (LWD) for chemically modified subgrade construction acceptance, so this st

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Volovski, Matthew, Mohammad Arman, and Samuel Labi. Developing Statistical Limits for Using the Light Weight Deflectometer (LWD) in Construction Quality Assurance. Purdue University, 2014. http://dx.doi.org/10.5703/1288284315504.

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Garzon-Sabogal, Luis, Amy Getchell, Peter J. Becker, Philippe L. Bourdeau, and Marika Santagata. Control Guidelines for Aggregate Drainage Layers and Evaluation of In-Situ Permeability Testing Methods for Aggregates. Purdue University, 2025. https://doi.org/10.5703/1288284317769.

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This project examined the use of the light weight deflectometer (LWD) and the air permeameter test (APT) for control of the state of compaction and hydraulic conductivity of aggregate drainage layers. The investigation included an extensive program of LWDs, APTs, and nuclear density tests on two testing strips constructed at an experimental site—one on an untreated subgrade and the other on cement-treated subgrade, The project also included additional field tests at three construction sites in Indiana and a laboratory testing program for calibration and validation of the field data. Statistics

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Menke, Amelia, Wendy Wieder, and Sally Shoop. Using the light weight deflectometer in winter climates. Engineer Research and Development Center (U.S.), 2020. http://dx.doi.org/10.21079/11681/37674.

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Wieder, Wendy, Sally Shoop, and Lynette Barna. Using the light weight deflectometer to assess groomed snow and ice surfaces. Engineer Research and Development Center (U.S.), 2019. http://dx.doi.org/10.21079/11681/32732.

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Zhao, Guangyuan, Yao Yao, Shuo Li, and Yi Jiang. Maximum Allowable Deflection by Light Weight Deflectometer and Its Calibration and Verification. Purdue University, 2019. http://dx.doi.org/10.5703/1288284316866.

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Rushing, John, Lulu Edwards, Haley Bell, and Margarita Ordaz. Rapid assessment tools for estimating trafficability of low volume roads. Engineer Research and Development Center (U.S.), 2025. https://doi.org/10.21079/11681/49560.

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Rapid assessment of low-volume road surfaces remains a challenge when attempting to forecast allowable vehicle crossings. Variations in soil type, compaction effort, and moisture content of the soil can greatly affect trafficability, and predictive equations for soil deformation under vehicle loads often have reduced reliability for low-strength materials. Portable tools to characterize soil stiffness and corresponding relationships to load-induced deformation are needed. In this effort, researchers performed comparative testing of multiple rapid assessment tools as potential devices for givin

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