Results 201 to 210 of about 2,995 (244)

Effect of bell-shaped loading and haversine loading on the dynamic modulus and resilient modulus of asphalt mixtures

Construction and Building Materials, 2018
Abstract The vertical compressive stress pulse distributions at various asphalt pavement depths can be represented as square loading, haversine loading and bell-shaped loading. This study aims in comparing the effects of bell-shaped loading and haversine loading on the dynamic modulus and resilient modulus of asphalt mixtures.
Xiaodi Hu, Rong Luo, Li Ruan
exaly   +2 more sources

Predicting the Resilient Modulus of Asphalt Concrete from the Dynamic Modulus

Transportation Research Record: Journal of the Transportation Research Board, 2007
The NCHRP 1-37A Guide for Mechanistic-Empirical Design of New and Rehabilitated Design Structures introduces the dynamic modulus as the material property to characterize asphalt concrete. This is a significant change from the resilient modulus used in the previous AASHTO pavement design guide. This paper presents an analytical method of calculating the
Andrew Lacroix, A. Ardalan Mosavi Khandan, Y. Richard Kim   +2 more
openaire   +3 more sources

Experimental Study on Static and Dynamic Compressive Resilient Modulus

Journal of Highway and Transportation Research and Development (English Edition), 2020
To study the effect law of asphalt mixture composition design and static/dynamic test methods on resilient modulus, and consummate the design parameters of asphalt mixture, the laboratory tests on static/dynamic compression resilient moduli and strength are conducted by the uniaxial unconfined method and top measuring method by MTS-810.
Jing-yu Liu, Yan-wu Yan, Zhao-hui Liu, You Huang   +3 more
openaire   +1 more source

Resilient Modulus and Dynamic Modulus of Warm Mix Asphalt

GeoCongress 2008, 2008
Warm Mix Asphalt (WMA) is produced at temperatures in the range of 30uF to 100uF (17uC to 56uC) lower than the traditional hot mix asphalt (HMA). It has a number of benefits including reducing energy consumption, emissions from burning fuels, and volatiles generated from the heated asphalt binder at the production plant at the paving site.
Shu Wei Goh, Zhanping You
openaire   +1 more source

Revisiting the relationship of dynamic and resilient modulus test for asphaltic concrete mixtures

Construction and Building Materials, 2018
Mechanistic-Empirical Pavement Design is considered relatively more effective than conventional empirical design for excessive tyre pressure exerted by axle load spectra and diverse environmental conditions. Many highway agencies are adopting a paradigm shift to Mechanistic-Empirical pavement design practices, obsoleting huge inventories of resilient ...
Muhammad Irfan, Muhammad Zeeshan, Imran Hafeez   +2 more
exaly   +5 more sources

Backcalculation of dynamic modulus from resilient modulus test data

Canadian Journal of Civil Engineering, 2011
For the past few decades, the stiffness of asphalt material has been commonly characterized by means of resilient modulus. However, the resilient modulus is not a fundamental material property, and hence, the concept of resilient modulus has been subsequently diminished in the latest Mechanistic-Empirical Pavement Design Guide (MEPDG).
Hyung Suk Lee, Jaeseung Kim
openaire   +1 more source

Resilient Modulus of Recycled Aggregates Obtained by Means of Dynamic Tests in a Triaxial Apparatus

Procedia, Social and Behavioral Sciences, 2012
AbstractThe main objective of this experimental research is to prove the hypothesis of the use of recycled materials (C&D) in building road subbases by means of a comparative study which investigates the resilient behaviour of unbound aggregate blends.The results given by the investigation clearly prove that the blend made of recycled materials has ...
Gianluca Cerni
exaly   +2 more sources

Study on Morphological Parameters of Hysteretic Curve of Dynamic Resilient Modulus

Journal of Highway and Transportation Research and Development (English Edition), 2020
The hysteresis curve of dynamic resilient modulus (DRM) is the load and deformation curve of asphalt mixture under dynamic loading, it can reflect the evolution rule of internal stress-train state with load and temperature. Based on viscoelastic theory, 3 morphological parameters could be determined: slope k of major axis, eccentricity e of ellipse ...
Jing-yu Liu, Yan-wu Yan, Zhao-hui Liu, You Huang   +3 more
openaire   +1 more source

Construction of Dynamic Modulus Master Curves with Resilient Modulus and Creep Test Data

Transportation Research Record: Journal of the Transportation Research Board, 2012
For the past few decades, the stiffness of materials used for roadway design and construction has been commonly characterized by the resilient modulus, defined as the ratio of the applied stress to the recoverable strain. However, the resilient modulus is not a fundamental material property of a viscoelastic material.
Hyung Suk Lee, Sungho Kim, Bouzid Choubane, Patrick Upshaw   +3 more
openaire   +1 more source

Study on Roadbed Soil Dynamic Resilient Modulus Test

Advanced Materials Research, 2013
This paper draws on the successful experience from domestic and abroad researches, testing repeatedly of powder subgrade with load triaxial tests, analyzing the relationship between the subgrade soil resilient modulus, deviatoric stress, water content and degree of compaction.
An Hua Xu, Jian Hong Fang
openaire   +1 more source