Investigation of Construction Concepts for Pavements Across Soft Ground


Book Description

This study was a follow-up of the Bridge Approach Study reported in U.S. Army Engineer Waterways Experiment Station Technical Report S-77-1, February 1977, titled 'Investigation of Construction Techniques for Tactical Bridge Approach Roads Across Soft Ground.' During the Bridge Approach Study, several construction techniques compatible with wet weather construction were investigated for the building of bridge approach roads over soft ground. Results showed that thickness requirements for unsurfaced roads could be reduced substantially using aggregate-membrane construction concepts. Another finding was the potential use of sand-confinement systems for base courses as an expedient construction technique not adversely affected by wet weather conditions. The objectives of this study were (a) to conduct additional tests on the aggregate-membrane concept; (b) to investigate the use of sand-filled confinement grids as an expedient wet weather concept for base course layers; and (c) to analyze and combine the results of this study with those of the Bridge Approach Study. To accomplish these objectives, a test section containing six items was constructed and subjected to accelerated traffic using two different loads on a 5-ton military cargo truck.













Extending Aggregate Resources


Book Description







Geotextiles and Geomembranes Handbook


Book Description

An essential introductory reference manual for anyone specifying, maintaining or manufacturing geotextiles and geomembranes.




Technical Report S.


Book Description




Fundamentals of Geosynthetic Engineering


Book Description

The development of polymeric materials in the form of geosynthetics has brought major changes to the area of Civil Engineering. Increasing interest in these materials and their use has resulted in significant advances in their practical applications in the last few decades. Following this progress, geosynthetics have become a common and favoured construction component in present-day geotechnical engineering. A wide range of compositions is now used, with properties tailored to conditions required for application. Fundamentals of Geosynthetic Engineering provides an overview of the basic concepts of this fascinating and innovative subject area in a logical and illustrative way. This book guides the reader from basic description, manufacturing and material properties of the geosynthetics to their selection process and the major applications. It treats practical analysis and design concepts and provides guidelines for application. In addition, the quality control, field performance and monitoring of applied geosynthetics are discussed, and some aspects of costs analysis are described. The text is supported by examples, multiple choice and numerical questions with answers provided. One separate chapter with case studies is included in the book. In addition, the latest common test standards and codes of practice are introduced in a few sections with extensive references. This textbook will serve courses in geosynthetics or earth reinforcement for graduate students in Geotechnical, Transportation, Hydraulic or Environmental Engineering. It may also be used as part of the undergraduate Geotechnical Engineering course for final year undergraduate students in Civil Engineering. The structure of this text also facilitates self-study by civil engineers, manufacturers and installers who wish to become familiar with the subject matter.