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The article we enclose herein appears in: Concrete Construction Magazine; Annual Floors Issue 2007; and, it affirms any number of our prior reports concerning the environmental and performance benefits of using Coal Ash in the making of Portland-type Cement and Portland Cement Concrete.
That affirmation comes in the form of construction design specifications published by a major US company, whose public sense of social and environmental responsibility is well known.
Wal-Mart Stores Incorporated now requires that a certain minimum amount Coal Ash be used in the concrete floors, and where else possible, in the construction of all their new facilities.
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We have presented, over the long course of our reportage, numerous examples of the Carbon Dioxide recycling technology that has been, and is being, established at the University of Southern California, by their Nobel Laureate chemist, George Olah, and his USC colleagues.
Their array of CO2 utilization processes is compendious. It is as astounding to us here that just the sheer volume of their work, their productivity, has yet to garner any real public notice, as is the main point which they continue to drive home with such potent persistence, which is:
Carbon Dioxide, as it arises in only a very small way, relative to natural sources of emission, such as volcanoes, from our varied and productive uses of Coal, is a valuable raw material resource.
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In point of fact, our United States taxes were used in two different ways, both directly and indirectly, to subsidize the construction and operation of a factory, in the nation of Turkey, that converts low-grade Turkish Coal into liquid and gaseous hydrocarbons.
We've provided you with many reports documenting the Carbon conversion expertise that had been developed, over the course of decades, by the former Gas Research Institute, of Chicago, Illinois.
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We have many times documented the rather extraordinary body of Carbon Dioxide recycling technology that had been developed by the former Gas Research Institute and Institute of Gas Technology, in Chicago, Illinois; both of which merged, a little more than a decade ago, to form the Gas Technology Institute.
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It's not exactly the end "Use" of Coal-fired power plant "Flue Gas Gypsum" that has been improved by Pennsylvania's Air Products and Chemicals company, but, rather, it's ease of handling and processing in the manufacturing facilities which utilize synthetic Gypsum in, especially, wallboard.
We've documented numerous times that synthetic Gypsum can be manufactured from Coal-fired power plant Flue Gas Desulfurization, FGD, "sludge" - the product generated by reacting limestone in wet stack gas scrubbers with the exhaust gasses generated by the combustion of Sulfur-containing Coal.
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