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Now showing items 31-40 of 43
MECHANISTIC INPUT PARAMETERS AND MODEL CALIBRATION FOR DESIGN AND PERFORMANCE EVALUATION OF FLEXIBLE PAVEMENTS IN OKLAHOMA
(2017-12)
The Mechanistic-Empirical Pavement Design Guide (MEPDG) – a product of research and experience involving more than 20 years of traffic, climate and materials data from different regions in the U.S. – has elevated pavement ...
In Situ Testing and its Application to Foundation Analysis in Fine-Grained Unsaturated Soils
(2016-12-16)
The in situ test is an important part of a geotechnical engineer’s arsenal. Currently, there are no established methods for interpreting results of in situ tests in unsaturated soils. The difficulty in interpreting in situ ...
Characterization and Prediction of Flash Flood Severity
(2017-05)
Flash floods, a subset of floods, are a particularly damaging natural hazard worldwide due to their multidisciplinary nature, difficulty in forecasting, and fast response that limits emergency responses. The purpose of ...
Development of Soil-Pile Interaction Models in Improved Soils Using Centrifuge Test Data and System Identification Methods
(2016-05-13)
Documented distresses in pile foundations in soft soils during past earthquakes have shown that piles founded in soft soils undergo large lateral deformations during seismic loading. Improving the soil surrounding the piles ...
DIMENSIONAL STABILITY OF CONCRETE SLABS ON GRADE
(2011)
Drying shrinkage is one of the major causes of cracking in concrete slabs on grade. The moisture difference between the top and bottom surface of the slabs causes a dimensional or "shrinkage" gradient to develop through ...
APPLICATION OF ECOSYSTEM ENERGETIC INDICATORS FOR THE VALUATION OF ECOSYSTEM SERVICES AND HEALTH
(2014)
Ecosystems services are benefits that humans receive from ecosystem functions. Ecosystem health is a term that is commonly used in the literature to describe the state of an ecosystem. Ecologists and economists have stated ...
Augmenting the Applicability and Efficiency of Ecological Engineering Solutions for Water Quality Improvement
(2010)
The design options available to the ecological engineer were expanded by exploring new sustainable water quality improvement techniques, specifically the applicability of passive treatment of acid mine drainage (AMD) in ...
EVALUATION OF RHEOLOGICAL PROPERTIES OF ASPHALT BINDERS FOR PAVEMENT DESIGN APPLICATIONS
(2011)
More that 90% of the total paved roadways in the U.S. are asphalt concrete (AC) pavements. The annual expenditures for construction and maintenance of these pavements exceed $10 billion. To reduce these maintenance costs, ...
A STUDY ON THE INFLUENCE OF SELECTED GEOGRID INDEX PROPERTIES ON THEIR IN-AGGREGATE PERFORMANCE
(2013)
Geogrids are polymer-based products which are commonly used to reinforce soil walls, steep slopes and roadway bases. Inclusion of geogrids as aggregate base reinforcement, with proper installation, has been shown to result ...
A LABORATORY INVESTIGATION AND MODELING OF DYNAMIC MODULUS OF ASPHALT MIXES FOR PAVEMENT APPLICATIONS
(2011)
Traditionally, stiffness of hot mix asphalt (HMA) has been used as a measure of the pavement's ability to carry vehicular traffic loads without undergoing excessive deformation. Early deterioration of pavements due to ...