Romanesque Reused
When Union Station in St. Louis, Mo. was built in the 1890s it was the world's largest railroad station. Having been abandoned by the railroads in the 1970s, it was reopened...
Foam Grout Saves Tunnel
Pittsburgh's 81 year old Mt. Washington tunnel has been made safe for many more decades of light-rail transit use, with the use of foamed chemical grout. The job is the first...
Hurricane Alicia
One Year Later
In the pre-dawn hours of August 28, 2983, Hurricane Alicia ripped its way ashore at the western tip of Galveston Island and moved northward to the Greater Houston area. This storm caused...
Design, Construction & Performance of Fades Dam
The project, construction and performance of les Fades dam are described. Les Fades dam is one of the first concrete faced rockfill dams compacted with a vibratory roller. A vibratory...
Weak Rock in Two Rockfill Dams
Two South Australian concrete face compacted rockfill dams, built from soft rock won from each dam site, have performed successfully in service with only small leakage and settlements...
Batang Ai?Transition Zone
The Batang Ai Dam in Sarawak includes two concrete faced rockfill embankments. The transition zone between the concrete face and the rockfill consisted of natural river gravels but some...
It? Dam?Selection of Type
This paper describes the studies carried out for the type of dam selection for the Ita Hydroelectric Project. Drastic rainfall conditions, large river diversion flows and an abundance...
The Upstream Zone in Concrete-Face Rockfill Dams
The upstream zone of small rock, the supporting zone for the slab at many recent concrete-face rockfill dams has contained less than 20% of particles smaller than the No. 4 sieve. Such...
Need a Dependable Backfill?Try a Flowable Fly Ash
Flowable fly ash is a relatively new cementitious structural backfill material. It can be used in water or in the dry and will flow into place without the usual labor-intensive activities...
Low Cement Content High Strength Concrete
The fundamental objective of this research project was to develop mix design information for structural grade concrete using high fly ash content. The fly ash used in this project was...
Advances in Fiber Reinforced Concrete
The idea of using strong discontinuous fibers as reinforcement for concrete seems to have been both a seduction and a challenge to many civil engineers. Adding the reinforcement to the...
Structural Vibrations Associated with Large Incubation Tanks
It is the purpose of this paper to describe the format of an investigation wherein the train of evidence led from an assumption of a strictly mechanical cause to an actual cause that was...
Unsymmetrically Reinforced Concrete Columns
The development of column strength formulas for unsymmetrically reinforced sections has been developed in previous papers. However, aids such as interaction diagrams have not been available...
Advances in High Strength Concrete,
The technology for producing field placeable concrete with a 28 day compressive strength of 10,000 psi has been available for many years. With the recent use of microsilica as an additive...
State of the Art in Concrete-Polymer Materials
Concrete-polymer materials represent a relatively new technology in the construction industry. In some cases polymers are combined with portland cement concrete and, in other cases, polymers...
Obtaining Reliable Data from Fragility Tests
The parameters discussed in this paper are the same as those present in normal seismic qualification testing. These parameters behave differently in high level acceleration tests and their...
Aseismic Capability Prediction from Failure Data
Forensic engineering evaluations of failures have produced a wealth of technical data. In this paper, evaluation of representative failure data from one practitioner provided relevant...
Design of Cirata Concrete Face Rockfill Dam
The Cirata Hydro-Electric Project on the Citarum River in Western Java, Indonesia is at present under construction for Perusahaan Umum Listrik Negara (PLN). The project which is being...
Strength of Soils in Terms of Effective Stress
The factors that determine soil strength, such as amount of confinement, density, particle size distribution, mineral friction, aging, particle crushing, and others, produce their effects...
Infrastructure Rehabilitation: New Technologies
The paper discusses developments in a number of areas that may be brought to bear on the problems of infrastructure deterioration and rehabilitation. Among the subjects discussed weekly...
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