Design and Construction of Airport Pavements on Expansive Soils


Book Description

This investigation was initiated to review the current engineering literature and synthesize from it a design procedure for stabilizing expansive soils beneath airport pavements. To do this, the study was broken down into six specific areas: (1) Methods of identifying and classifying the types of soil that are considered expansive and cause early pavement distress; (2) Laboratory and/or field test methods to determine the level of expansion and shrinkage; (3) Selection of the type and amount of stabilizing agent (lime, cement, asphalt, only); (4) Test methods to determine the physical properties of stabilized soil; (5) Test methods to determine the durability of stabilized soil; and, (6) Field construction criteria and procedures. This report addresses the above objectives and provides a summary of the current literature pertaining to the subject. Conclusions and recommendations were made based on the current literature, without laboratory verification. Soil volume changes caused by other factors (e.g., frost heave, salt heave) were not studied.







Expansive Soils


Book Description

Essential technical information for building on expansive soils--complete with practical, proven design methods. Expansive Soils examines factors that influence the design offoundations and pavements built on expansive soils, and exploreskey design procedures and remedial measures that address thesefactors effectively. Backed by the authors' extensive research andexperience --including interviews with practicing engineers workingwith expansive soils --this authoritative volume is an importantreference text for geotechnical and foundation engineers,geologists, construction professionals, and students. Easy to understand and apply, Expansive Soils contains: * Site investigation techniques for identification andclassification of expansive soils * Heave prediction methods using different types of data --withrigorous treatment of soil suction theory and measurement,oedometer tests, and more * Alternative design procedures for drilled pier and slab-on-gradefoundations, highway and airfield pavements * Treatment and chemical stabilization techniques --including salttreatment; moisture barriers; lime and cement stabilization; andother procedures * Remedial measures such as drainage control, and removal withreplacement and compaction control * Sample problems illustrating practical applications.




Foundation Engineering for Expansive Soils


Book Description

Your guide to the design and construction of foundations on expansive soils Foundation Engineering for Expansive Soils fills a significant gap in the current literature by presenting coverage of the design and construction of foundations for expansive soils. Written by an expert author team with nearly 70 years of combined industry experience, this important new work is the only modern guide to the subject, describing proven methods for identifying and analyzing expansive soils and developing foundation designs appropriate for specific locations. Expansive soils are found worldwide and are the leading cause of damage to structural roads. The primary problem that arises with regard to expansive soils is that deformations are significantly greater than in non-expansive soils and the size and direction of the deformations are difficult to predict. Now, Foundation Engineering for Expansive Soils gives engineers and contractors coverage of this subject from a design perspective, rather than a theoretical one. Plus, they'll have access to case studies covering the design and construction of foundations on expansive salts from both commercial and residential projects. Provides a succinct introduction to the basics of expansive soils and their threats Includes information on both shallow and deep foundation design Profiles soil remediation techniques, backed-up with numerous case studies Covers the most commonly used laboratory tests and site investigation techniques used for establishing the physical properties of expansive soils If you're a practicing civil engineer, geotechnical engineer or contractor, geologist, structural engineer, or an upper-level undergraduate or graduate student of one of these disciplines, Foundation Engineering for Expansive Soils is a must-have addition to your library of resources.













Rational Structural Design of Highway/Airport Pavements


Book Description

Rational design theories for highway and airport pavements are presented together with an invention of a much superior paving material, comprising recycled Ethylene Vinyl Acetate (EVA) mixed and compacted with graded aggregates. EVA is the binder (cheaper than asphalt), and the new paving material, called EVAPAVE, is four times stronger and tougher than asphalt concrete, and twice as strong and tough as high quality cement concrete. Fracture mechanics is used for determining the fatigue life of the pavement AC surface, while the stress-dilatancy theory is used for the rutting of the pavement. The theories are then combined to obtain the interaction of fatigue and rutting. Several examples are presented to illustrate the design methodology. The new pavement will not require joints and will not have bumps or depressions and will be the smoothest riding pavement, with huge savings in construction and maintenance and in vehicular fuel and maintenance costs, estimated to exceed $10 billion per year in the U.S. alone. Its fatigue life will outlast any other pavement by more than seven times.