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This study was conducted to identify methods that have been used in the repair and rehabilitation of concrete dams. Information was obtained through literary searches, discussions with project personnel, and visits to project sites. Each case history includes a background of the project, the deficiency that necessitated repair or rehabilitation, and descriptions of materials and methods used in the repair or rehabilitation. When available, the cost of the repair project and the performance of the repair to date have been included. Case histories included in this report cover a range of deficiencies in concrete structures, including cracking, spalling, erosion, leakage, inadequate PMF capacity, expansion resulting from alkali-aggregate reaction, instability, and insufficient storage capacity.
A foundational work on historical and social studies of quantification What accounts for the prestige of quantitative methods? The usual answer is that quantification is desirable in social investigation as a result of its successes in science. Trust in Numbers questions whether such success in the study of stars, molecules, or cells should be an attractive model for research on human societies, and examines why the natural sciences are highly quantitative in the first place. Theodore Porter argues that a better understanding of the attractions of quantification in business, government, and social research brings a fresh perspective to its role in psychology, physics, and medicine. Quantitative rigor is not inherent in science but arises from political and social pressures, and objectivity derives its impetus from cultural contexts. In a new preface, the author sheds light on the current infatuation with quantitative methods, particularly at the intersection of science and bureaucracy.
This history explores the story of federal contributions to dam planning, design, and construction by carefully selecting those dams and river systems that seem particularly critical to the story. The history also addresses some of the negative environmental consequences of dam-building, a series of problems that today both Reclamation and the U.S. Army Corps of Engineers seek to resolve.
Explores the story of Federal contributions to dam planning, design, and construction.
This manual provides general information, design criteria and procedures, static and dynamic analytic procedures, temperature studies, concrete testing requirements, foundation investigation requirements, and instrumentation and construction information for the design of concrete arch dams.
From the nineteenth-century textile mills of Lowell, Massachusetts, to the triumph of unions in the twentieth century and their waning influence today, the contest between labor and capital for the American bounty has shaped our national experience. In this stirring new history, Philip Dray shows us the vital accomplishments of organized labor and illuminates its central role in our social, political, economic, and cultural evolution. His epic, character-driven narrative not only restores to our collective memory the indelible story of American labor, it also demonstrates the importance of the fight for fairness and economic democracy, and why that effort remains so urgent today.