Ups and Downs in Chicago
The Chicago Title and Trust Center—a 50-story mixed-use complex which opened late last year—offers 1.3 million sq ft of above-grade space, and three levels of below-grade parking. The...

Impact of Fracture Coatings on the Transfer of Water Across Fracture Faces in Unsaturated Media

Safeguarding Steel
U.S. bridges are caught in the money squeeze. Painting has become a luxury few public agencies can afford and complying with EPA regulations has escalated costs even more. The paint/coatings...

Realistic Specifications for Steel Bridge Painting
Specifications play a vital role in a steel bridge painting contract. They not only can ease problems with painting construction, but can also provide a common standard for all parties...

Aerogel—A Transparent, Porous Superinsulator
Silica aerogel is an unusual, transparent, low density, thermally insulating solid useful for a variety of applications. We have been investigating silica aerogel for use in transparent...

Energy Absorption of Failing Injection-Molded Rubber-Coated Glass/Nylon Composites

Small-Scale Meteorology of Freezing Precipitation
Freezing rain and glazing are extremely disruptive to transportation, communication and power transmission. Local variations in the occurrence of freezing rain may be difficult to forecast....

Designing for Corrosion Control
This presentation will discuss designing from several aspects: a. Designing of the item to lessen the affects of corrosion. b. Selection of non-corrosive materials in the designing process...

Dynamics of Protective Coatings to Limit Cavitation Damage
Cavitation implosions inflict a very high impact stress on turbine blades and turbine liners. One strategy for limiting the impact on the turbine components is to overlay a protective...

Corrosion Below: Sewer Structures
When a sewer system fails, the cause is often not the pipe but a manhole, junction or other special-purpose structure. Most of these structures are concrete, either cast in place or precast....

Manhole Rehabilitation
Manholes are frequently the forgotten element in infrastructure renewal. When they aren't properly maintained they allow excess water into the sewer system, and structural...

Corrosion Protection of Cast Iron and Ductile Iron Pipe, San Diego, California
This paper addresses the use of a loose unbonded plastic covering polyethylene encasement for protection of cast and ductile iron pipe in an extremely corrosive soil. The case study in...

Bond Strength of Epoxy-Coated Reinforcement to Concrete—An Update
The results of a large-scale study to determine the effect of epoxy coating on bond strength is described. The study addresses the effects of coating thickness, deformation pattern, bar...

Influence of Epoxy Coating on Stress Transfer from Steel to Concrete
To assess the influence of epoxy coating on the bond characteristics of reinforcing bars, a series of tests was conducted to determine differences in stress transfer between coated and...

Composting as BDAT for Solvent (F Wastes) Contaminated Soils
The biological treatability of the contaminated soils at a former coating and resins facility was investigated in the laboratory using small scale composting reactors. The soil treatment...

Frazil Ice Control Using Electromechanical Cibrators and Ice-Resistant Coatings
Two methods, using electromechanical vibrators and ice-resistant coatings, were studied in a small-scale test conducted at the U. S. Army Cold Regions Research and Engineering Laboratory...

New Parallel Wire Bundle for Cable-Stayed Bridges
A parallel wire bundle is described which is twisted with a long lay length. It is corrosion protected by an inner fill and outer coating of polyurethane. It presents a specially shaped,...

Cable Stayed Bridges
Two of these five papers on cable-stayed bridges deal with wind analysis. One develops the theory for motion due to flutter and reaches the conclusion that the vibrations are, in general,...

Containerless Coating Processes for Large Space Structures
Large space structures (LSS) in low earth orbit (LEO) must be able to withstand the deleterious effects of in situ ultraviolet radiation, atomic oxygen, and thermal-cycling-induced microcracking....

Laboratory Investigations of Low Earth Orbit Environmental Effects on Spacecraft Materials
Operations in low earth orbit (100-500 km) must take into consideration the highly oxidative character of the environment. Partial pressures in the range of 10-6-10-7...

 

 

 

 

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