Some Secrets to Building Structures on Expansive Soils
Each year, in the U.S. alone, shrinking or swelling soils inflict over $ 2.3 billion in damages to houses, buildings, roads, pipelines, and other structures. Despite this many engineers...
Tarbela Dam�Problems Solved by Novel Concretes
While constructing the world's largest embankment dam, Tarbela in Pakistan, the designers and contractors faced unprecedented flow volumes and velocities, causing severe cavitation...
Fracture in Concrete
Proceedings of a session at the ASCE National Convention held in Hollywood, Florida, October 27-31, 1980. Sponsored by the Committee on Properties of Materials of the ASCE Engineering...
1979 International Air Transportation Conference
The current state-of-the-art and future trends in air transportation are discussed. The current state of knowledge in practice and research, and communication between designers and users...
Largest Rotating Biological Contactor Plant Also First to Remove Nitrogen
Orlando, Florida is now constructing a new advanced waste treatment plant that removes both nitrogen and phosphorus to a high level. The plant is notable because it is the largest rotating...
Faults in Swedish and American Tunnel Practice: A Fable
Swedish and American practices in dealing with unanticipated geological conditions encountered during tunnel construction are contrasted. Swedish practice, illustrated with an actual example,...
Design and Construction of Long-Span Metal Culverts
Long-span metal culverts are built of corrugated-metal plates bolted together. They have spans exceeding 15 ft. Principal applications include use as drainage structures, grade separations,...
New York: Water City
New York's waterfront (some 584 miles) is its most impressive natural resource and its biggest management headache. In Manhattan, changes in waterfront technology (container...
Will EPA Relax Its Mandatory Secondary Treatment Requirement�
In the Clean Water Act of 1977, Congress said that under some circumstances communities discharging to marine waters might not have to provide full secondary treatment. At the present...
Building Skyscrapers in Orbit
NASA plans to build a host of large structures (communications antennas, remote-sensing radiometers, solar power satellites, etc.) in space. Three ways to build them are: (1)Fabricate...
Best Ways to Dewater Dredged Material
Left to its own devices, fine-grained dredged material placed in confined disposal areas reaches an equilibrium water content near its Atterberg liquid limit. The high water content of...
Industry Upgrades Technician Training
Here is one example where regulations were imposed by industry�voluntarily. The Washington Area Council of Engineering Laboratories, Inc., developed a program to certify technicians testing...
EPA Goes to BAT Against Toxic Industrial Wastewater
Industrial wastewater discharged into municipal sanitary sewers can pass untreated through the treatment plant and into the receiving water. Some industrial wastes can also harm biological...
Testing Concrete in Place
Although modern concrete construction has developed during the past 60 years, one aspect has remained essentially unchanged�the use of molded cylinders tested in compression to estimate...
Nuclear Testing of Utility Trench Backfill
For many years, Westchester County municipalities were resigned to the fact that compaction of utility trenches could not be done satisfactorily and that settlement and road failure would...
World's First Iron Bridge
In 1779, using a new man-made material, skilled English workmen built a single-span bridge of cast iron over a steep river gorge about 140 miles northwest of London. The result was a 424-ton...
Guide to Investigation of Structural Failures
This guide contains a broad range of instructions and suggestions regarding structural failures. Topics include failure causes by project type, failure causes by structural type, failure...
Stochastic Scheduling of Linear Construction Sites
Originally published in
European Water Treatment Practices�� Their Experience with Ozone
Today, more than 1100 water treatment plants worldwide use ozone for some purpose. In Europe, it is always regarded as a water-treatment technique and seldom simply as a disinfectant....
European Water Treatment Practices�� The Promise of Biological Activated Carbon
Bacterial growths occur in all granulated activated carbon columns. In fact, it is difficult to prevent such growths. The Germans now deliberately foster aerobic bacterial growth by providing...
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