Results 261 to 270 of about 27,414 (309)

Weighting Factor for Seasonal Subgrade Resilient Modulus

Transportation Research Record: Journal of the Transportation Research Board, 1998
Subgrade resilient modulus is highly dependent on water content, which can vary significantly with a number of seasonal environmental factors. Because the determination of seasonal resilient modulus is cumbersome, it is difficult to include environmental factors in pavement design.
Yun Guan, Eric C. Drumm, N. Mike Jackson
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Subgrade Resilient Modulus Correction for Saturation Effects

Journal of Geotechnical and Geoenvironmental Engineering, 1997
Mechanistic design methods for flexible pavement require the specification of the resilient modulus Mr for each soil subgrade encountered in the pavement project.
Eric C. Drumm, Jason S. Reeves, Mark R. Madgett, William D. Trolinger   +3 more
openaire   +1 more source

Resilient Modulus Test — Triaxial Cell Interaction

2003
During developmental work by the Strategic Highway Research Program (SHRP, 1987–1992) and the Federal Highway Administration (FHWA, 1993-present), it was recommended that knowledge and assessment of triaxial equipment and sample interaction be correctly applied to both test command and data reduction routines for the accurate measurement of resilient ...
RL Boudreau, J Wang
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Resilient Modulus Testing for Pavement Components

2003
Description Nineteen peer-reviewed papers address the latest issues affecting the resilient modulus test and use of the test results. Resilient modulus indicates the stiffness of a soil under controlled confinement conditions and repeated loading.
GN Durham, WL DeGroff, WA Marr
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Resilient Modulus Models for Compacted Cohesive Soils

Transportation Research Record: Journal of the Transportation Research Board, 2004
Three-parameter models have been used to represent the effects of confining and shear stresses on the value of resilient modulus. A new generation of such models allows better characterization of the variation of resilient modulus at low deviator stress. These models can be extended to incorporate the effects of soil type, soil structure, and the soil
Phillip S. K. Ooi, A. Ricardo Archilla, Kealohi G. Sandefur   +2 more
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Resilient Modulus of Lime Treated Expansive Soil

Geotechnical and Geological Engineering, 2018
Subgrade soils play a major role in the proper functioning of pavements. They are subjected to repeated loads due to traffic and often subjected to moisture ingress during monsoon seasons. If the subgrade is expansive in nature, lime stabilization is commonly adopted to mitigate swelling and shrinkage.
S. Bhuvaneshwari, R. G. Robinson, S. R. Gandhi   +2 more
openaire   +1 more source

Resilient modulus lime-treated expansive subgrade

2015
Proper design of lime-treated subgrade requires knowledge of the stress-strain behavior under repeated traffic load. Limited research exists regarding the resilient modulus (MR) of lime-treated expansive soils. This study investigates the effect of lime treatment on the MR of an expansive soil from city of Tabuk in Kingdom of Saudi Arabia.
Elkady Tamer, Al-Mahbashi Ahmed, Al-Shamrani Mosleh   +2 more
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Resilient modulus properties of granular highway materials

Canadian Journal of Civil Engineering, 2009
An essential component of the new Guide for mechanistic–empirical design of new and rehabilitated pavement structures for the design of flexible pavement structures is the use of resilient modulus for base / subbase materials and subgrade soils. This study reports on resilient modulus (Mr) test results for unbound pavement materials that were obtained
Dieter Stolle, Peijun Guo, Ying Liu
openaire   +1 more source

Prediction Model of Graded Gravel Resilient Modulus

ICTE 2011, 2011
According to the nonlinear characteristic of graded gravel resilient modulus, Based on the optimization of the three kinds of graded gravel as the research object, and combined with repeated dynamic triaxial test data, compared k~θ model and Uzan model, using statistical analysis software 1stopt carries on the experimental parameters of nonlinear ...
Xiushan Wang, Gang Li
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Resilient Modulus Variations with Water Content

2003
Resilient modulus (MR) variations with water content were carefully examined for three subgrade soils—lean clay, clayey sand, and clayey gravel. For each soil type, four MR tests were performed at the following water contents: 2 to 3% dry of optimum, at optimum; 2 to 3% wet of optimum; and at full backpressure saturation.
J Li, BS Qubain
openaire   +1 more source