Structural Lumber: An Overview of Research Needs
Structural performance of lumber is influenced by the processing steps from forest to final end-use and by the end-use environment. Research needs in processing include: 1) selection of...
Grouting in Geotechnical Engineering
The 63 pages included in these proceedings came from 12 different countries and deal with the pertinent advances in grouting materials and technology that have occurred throughout the...
Research and Development for Increased Productivity�Where We Must Go
A well-focused research and development activity must be the essential foundation of any long-range success in maintaining high and increasing productivity in manufacturing, the efficient...
Organic Chemical Fire in Illinois: Emergency Response and Cleanup
In April 1980 at Hillsboro, Illinois, a fire in an agricultural chemical warehouse generated a hazardous smoke plume, and some 250,000 gallons of water used in fighting the fire were highly...
Controlling Productivity at a Hazardous Waste Site
The hazards associated with waste disposal sites can make estimating the resources required for a remedial action difficult. During the recent clean-up of a dioxin disposal site, the manpower...
Risk Analysis: Is EPA Changing the Rules?
Recent actions by EPA seem to indicate a departure from past practices in health risk assessment. In the past, findings that a substance is an animal carcinogen have usually led to regulatory...
The Hazardous Waste Dilemma
Issues and Solutions
The legal aspects, siting, management, disposal and site restoration of hazardous wastes are explored in an expansion of 30 of the technical papers that were presented at the 1980 conference...
Baltimore's Got the Subway Everyone Loves
Some of the innovations of Baltimore's 13.5-mile subway system are explored. The system, on which construction began in 1976, is under budget and on time. The first 7.5-mile...
Can Clay Liners Prevent Migration of Toxic Leachate
According to recent research, low permeability clay barriers, used by landfill operators to contain hazardous wastes, can be rendered highly permeable by certain aggressive chemicals including...
If Your City's Well Water Has Chemical Pollutants, Then What�
Synthetic organic chemicals, especially certain solvents, are showing up in groundwater all over the U.S. and in many other industrial countries as well. These substances, some of which...
Rocky Mountain Arsenal: Landmark Case of Groundwater Polluted by Chemicals
For more than 20 years, the Army's Rocky Mountain Arsenal near Denver has been dealing with groundwater pollution caused by chemical warfare agents and pesticides. The arsenal...
EPA Moving to control Industrial Toxic Pollutants with New NPDES Permits
To date, the main thrust of the nation's water pollution control program has been to abate traditional pollutants (biochemical oxygen demand, total suspended solids, and heavy...
Stopping Water with Chemical Grout
New chemical grouts are now available to repair sewer leaks, control groundwater movement, and stabilize incompetent soils. Some of these grouts came into being only after the American...
What's Happened to the Quality of Asphalt�
After the 1973 oil embargo, state highway departments began complaning that the asphalt cement supplied by refineries did not have as before. Although the asphalt met departmental specifications,...
Sand to Sandstone: Foundation Strengthening with Chemical Grout
A large school in San Francisco, built in 1930, was in need of structural rehabilitation to eliminate earthquake hazards. Founded on loose, windblown fine sand, the footings were subject...
Toxic Chemicals in New Jersey's Environment: Cancer Link�
New Jersey has one of the highest cancer rates in the United States. It is also second in manufacture of chemicals. How are toxic chemicals getting into the New Jersey environment�� its...
How New Jersey is Handling Its Hazardous Wastes
For many years, environmental agencies have paid little attention to how industry manages and disposes of its hazardous wastes. This has been especially true in New Jersey. As a result...
Environmental Problems and Products
Solving environment-related problems with certain products in case history format. Includes: Rebuilding a pelican's nest in Colorado, erosion control. Converting a garbage...
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...
Florida Sewage Plant First to Remove Nutrients with Bacteria Alone�� No Need for Costly Chemicals
Palmetto, Florida is now constructing the first advanced wastewater treatment plant in the U.S. to use the Bardenpho process. Unlike other AWT processes, this ingenious plant removes pohosphorus...
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