Results 171 to 180 of about 9,398 (242)

Resilient modulus of fine-grained subgrade soil considering load interval: An experimental study

, 2021
On automatic block lines, there is a time interval between two trains traveling on a track in the same direction. Therefore, the dynamic load on the railway subgrade is composed of the periodic vibrations generated when the train passes, and the ...
Chen Xixi, Nie Rusong, Yafeng Li, Yipeng Guo, Junli Dong   +4 more
semanticscholar   +1 more source

Key parameters controlling strength and resilient modulus of a stabilised dispersive soil

International Journal on Road Materials and Pavement Design, 2021
Dispersive clays are seen as problematic geomaterials due to their structural instability associated to the presence of high amounts of sodium adsorbed to the clay minerals.
Rubén Alejandro Quiñónez Samaniego, H. S. Scheuermann Filho, Mariana Tonini de Araújo, G. Bruschi, L. Festugato, N. Consoli   +5 more
semanticscholar   +1 more source

Predicting Resilient Modulus of Cementitiously Stabilized Subgrade Soils Using Neural Network, Support Vector Machine, and Gaussian Process Regression

International Journal of Geomechanics, 2021
Artificial neural network (ANN), support vector machine (SVM), and Gaussian process regression (GPR) were developed in this study for predicting resilient modulus (Mr) values of cementitou...
Xi Hu, Pranshoo Solanki
semanticscholar   +1 more source

Resilient Modulus for EPS Geofoam

Soil and Material Inputs for Mechanistic-Empirical Pavement Design, 2007
Most of the current design methods for geofoam used in pavement structures adopt the allowable working stress concept. These design methods do not fit rationally in conventional pavement design practice such as the AASHTO pavement design guide. To design flexible pavement structures according to AASHTO, the resilient modulus, M r , for EPS geofoam ...
Xiaodong Huang, Dawit Negussey
openaire   +1 more source

Resilient modulus of fine-grained soil and a simple testing and calculation method for determining an average resilient modulus value for pavement design

Transportation Geotechnics, 2016
The resilient modulus has been recognised as an important property that governs the performance of pavement materials under the dynamic wheel loads. The resilient modulus can be obtained from a repeated load triaxial test with a series of a combination ...
Bao Thach Nguyen, Abbas Mohajerani
exaly   +1 more source

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   +1 more source

The effects of porosity, asphalt content and fiberglass incorporation on the tensile strength and resilient modulus of asphalt concrete blends

, 2021
Asphalt concrete is the prevailing material used for road surface construction. Its adequate characteristics in providing stability, durability and driving safety are controlled by complex interactions between its components.
G. P. Piuzzi, Hugo Carlos Scheuermann Filho, Joe Arnaldo Villena Del Carpio, N. Consoli   +3 more
semanticscholar   +1 more source

Prediction of subgrade resilient modulus using artificial neural network

KSCE Journal of Civil Engineering, 2014
The development of an Artificial Neural Network (ANN) model to estimate subgrade resilient modulus is described in this paper. Nine (9) different sources of subgrade materials locally available in Georgia were subjected to the resilient modulus test with
Sung-Hee Kim, Jin-Hoon Jeong, Kim Sung-Hee   +2 more
exaly   +2 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 Backcalculation Techniques for Track

Performance Confirmation of Constructed Geotechnical Facilities, 2000
The layer moduli of track substructure components are important factors in the evaluation of track condition and estimation of maintenance costs. Layer moduli can be estimated from in-situ tests such as the cone penetration test (CPT); however, for layers of open graded aggregate, such as railway ballast with large individual particles, the results of ...
Theodore R. Sussmann, Ernest T. Selig
openaire   +1 more source