Download or read book Development of Potential Uses for the Residue from Fluidized bed Combustion Processes Quarterly Technical Progress Report June August 1979 written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An AFB fly ash sample from Georgetown University shows a significant difference in visual appearance to that of other AFB fly ash sources. Differences in the chemical composition of spent bed residue samples from Rivesville, West Virginia, are probably attributable to variations in the calcium to sulfur ratio in the fluidized-bed during combustion. Comparison of the particle size distribution of spent bed samples from Alliance, Ohio, and Georgetown University reveals a close similarity in the basic sizing of these materials, with each being considered in the medium to coarse sand size range. Visual inspection of the separated overflow sample from mineral cyclone separation indicates that this product may contain a relatively high percentage of lime. On the basis of available data, it appears that detrimental volume expansion in road base compositions containing AFB residue can be reduced to a tolerable level by pre-treatment, such as grinding and/or maximum hydration prior to use. Additions of relatively low percentages of AFB residue to acid mine waste-water resulted in significant increases in the percentage of solids of vacuum filtered samples, due to the low solids content of the wastewater sample. The addition of AFB residue to acid mine wastewater is effective in neutralizing the pH and dewatering the waste, although previous neutralization tests have shown that milled AFB residue is generally more reactive and effective than as received AFB residue. Combinations of equal weights of AFB residue and fly ash appear to produce relatively high strength block. Blocks with 80 percent AFB residue and 20 percent fly ash exhibited somewhat lower strengths with little or no cracking.

Download or read book Development of potential uses for the residue from fluidized bed combustion processes written by L. John Minnick and published by . This book was released on 1977 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Potential Uses for the Residue from Fluidized Bed Combustion Processes Quarterly Technical Progress Report June August 1980 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The following conclusions are recorded: The road base mixes in which quartz silica was substituted for the pulverized coal fly ash gave compressive strengths similar to those using the pulverized coal fly ash. The compressive strengths of road base mixes using recently produced AFB residue were of the same order of magnitude as those obtained in 1977, although the data covers a broad range of test results. Briquettes, produced from a number of trial mixes, show promise as a synthetic aggregate. Expansive grout mixes of slurry consistency achieve satisfactory compressive strengths in seven days. Sections of the test strips in Canton, Ohio show minimal expansion.

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Download or read book Development of Potential Uses for the Residue from Fluidized Bed Combustion Processes written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Potential Uses for the Residue from Fluidized Bed Combustion Processes written by L. John Minnick and published by . This book was released on 1980 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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