Heave Distress Problems in Chemically-Treated Sulfate-Laden Materials

Estuarine Acidification Caused by Drainage of Pyritic Sediments in Coastal Lowlands

Fouling of Nanofiltration Membranes due to Calcium Sulfate Precipitation in Treatment of Agricultural Drainage Water

Limited Aeration of Methanogenic Systems for Treatment of Sulfate-Containing Wastewater

Environmental Design Factors for Concrete Pressure Pipe

Preliminary Studies of a Karst Warm Spring in Mt. Kräuterin, Austria
A warm spring occurs at the west foot of Mt. Kruterin, characterized by relatively higher temperature (17.4°C) and sulfate concentration (162 mg/L) against with the regional background...

Freeze-Thaw Durability of Concretes With and Without Class C Fly Ash

California Aqueduct Modeling Package (CAMP)

Comparison of Mass Size Distribution and Flux of Sulfate and Nitrate in Urban and Non-Urban Areas

Ground Water Bioremediation

Fluxes and Mineralizers in the Clinkering Process

Biological Removal of Heavy Metals by Sulfate Reduction Using a Submerged Packed Tower

Sensitized Photooxidation of Dissolved Sulfides in Water
The ability of methylene blue (MB) and riboflavin (RF) to sensitize dissolved sulfides for photooxidation was investigated. Both MB and RF were found to be effective sensitizers for the...

Durability of Concrete Bridges in Virginia
This paper discusses four major types of deterioration found in concrete bridges: corrosion of the reinforcement, alkali-aggregate reactivity, freeze-thaw deterioration, and attack by...

Durability Failure of a Concrete Block Port Pavement
A concrete block port pavement began showing distress after 7.5 years of use. Initial repair attempts found extensive areas of deterioration. The concrete blocks were cracking, spalling,...

Acidic Polysaccharides from Marine Organisms
Different types of acidic polysaccharides have been extracted from various marine organisms. The chemical composition and structural studies of these molecules established that the main...

Effects of Uranium Mining, Puerco River, New Mexico
Effluent from uranium-mine dewatering and acidic water released by a tailings-pond dike failure increased radionuclide activities in streamflow in the Puerco River in New Mexico and Arizona....

Use of Polyaluminum Sulfate

Effect of Fly Ash on the Microstructure and Durability of Concrete
The influence of fly ash on the microstructure and durability of concrete was investigated. It was found that the use of 50% fly ash in concrete reduced greatly its resistance to freezing-and-thawing...

Permeability Effects on the Sulfate Resistance of Concrete
A laboratory study was conducted to determine the effect of permeability on the sulfate resistance of concrete containing fly ash. Concrete specimens were moist cured for 7 and 100 days...

 

 

 

 

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