Concrete-pavement Recycling could Slash Rehab Costs 30%
During the past few years, the recycling of highway pavements, especially asphalt pavements, has been in the news. Yet one promising development has drawn little attention: the recycling...
Structural Failures
A relatively few, spectacular failures of new buildings have caught the public attention. Despite the publicity, the track record of structural designers is generally outstanding. Nevertheless,...
Vacuum Sewers�� the Future for Sewage Collection�
Patented in the 19th Century, vacuum sewers are making a comeback. Vacuum is created and maintained at a central collection station and extended, through a network of collecting pipes,...
Long Span Roof Structures
The papers included in these proceedings treat a wide range of technical topics related to long span roof structures including new structural concepts, structural stability, the effects...
Construction of Power Generation Facilities
The impact of the present construction practice, codes, standards and regulations on the construction of power generation facilities is reviewed and examined in papers presented at the...
Pile Field Support Prefabricated Plants Floated into Place
A unique pile support system, combined with earth dikes and superflooding inside an earth drydock to found floating, prefabricated plant structures on the piles, is estimated to have saved...
America's Covered Bridges
Soon after the Revolutionary War, bridge construction became more important in the United States. Early builders developed by trail and error an economical, permanent, long-span covered...
West Virginia Cooling Tower Collapse Caused by Premature Form Removal
The collapse of a reinforced concrete cooling tower under construction at Willow Island, W.Va. in April 1978 resulted in 51 fatalities, making it the worst construction accident in American...
Post-Tensioned Foundations as Economical Alternative
Although post-tensioned (p-t) foundations have been utilized in the U.S. since the early 1960s, the last five years have witnessed a substantial increase in their implementation. Used...
Willow Island Aftermath: The Limits of OSHA
In April 1978 a natural-draft hyperbolic concrete cooling tower under construction at Willow Island, W.Va. collapsed. Fifty-one workers, suspended on a scaffold supported mainly by a layer...
The Concrete Canoe: A Technological Challenge
In 1970 the first concrete canoe was built, and since that time many colleges and universities have built and raced concrete canoes. The Union College (Schenectady, NY) Stone Boat Club...
The Long Road to Regulatory Reform
A brief report on ASCE's actions to encourage the regulatory reform movement in Washington. Included are the resolution as accepted by ASCE's Board of Direction,...
Earth-Filled Slurry Walls Provide Economical Seepage Control
Slurry trench cut-off walls are often used for seepage control after structures requiring excavation are completed, but at a construction site on the Tennessee-Tombigbee Waterway project...
Re-decking a Bridge With Precast Concrete
Re-decking a 1627-ft deck girder bridge on the Pennsylvania Turnpike with precast concrete slabs allowed the bridge to remain partially open to traffice during the entire construction...
The Fly-Over: It Unclogs Urban Traffic in A Hurry
Fly-overs are light-weight, low-cost, prefabricated steel structures that elevate only one or two lanes over a traffic-choked city intersection but dramatically reduce congestion. By removing...
Computerizing Public Works Design
Computers are an easy way to increase engineering design productivity. This is especially important to public works departments who have decreasing budgets and increasing work loads. This...
Baltimore Borrows Bridge Beams
A look at the construction of the Baltimore Convention Center, its four domelike exhibition halls, the main lobby and its service areas. The Center's four columnless exhibit...
Vail Pass Highway�Respecter of Mountain Ecology
Environmental constraints to a large degree controlled both the design and construction of a 14-mi segment of Interstate Highway 70 through Vail Pass in Colorado and necessitated adoption...
San Antonio Freeway: Social-Impact Landmark
San Antonio's McAllister Freeway, or rather its proposed construction, aroused so much furor as to generate national publicity in the early 1970s. Objections arose because...
Parrotts Ferry Bridge: Pioneer in Lightweight, Pumped Concrete
Spanning the Stanislaus River in Northern California, this bridge includes a 640-ft center span that is the world's longest span in lightweight concrete and the longest bridge...
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