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HARVESTING SMOKE.
| 题名： | HARVESTING SMOKE. |
| 作者： | Saylak-D |
| 关键词： | Base-course-Pavements; Bottom-ash; Coal-based-materials; Cost-effectiveness; Desulfurization-; Electric-power-plants; Flue-gases; Fly-ash; Gypsum-; Mix-design; Pavement-design; Pavement-performance; Paving-materials; Recycled-materials; Research-projects; Salvage-; State-departments-of-transportation; Subgrade-Pavements; Sulfur-; Surface-course-Pavements; Texas-; Texas-Transportation-Institute; Universities-and-colleges; Waste-products |
| 摘要： | Faculty and students from Texas A&M University have joined Texas Transportation Institute personnel to form a program called Harvesting Smoke. The program's cooperative projects with the Texas Department of Transportation, utility companies, and independent laboratories have enabled researchers to develop a wide range of high-volume commercial applications for coal combustion byproducts (CCBs) created by coal-burning power plants. These byproducts include fly ash, bottom ash, flue gas desulfurization gypsum, and sulfur. The group has developed cost-effective uses for CCBs in paving mixtures for all layers of a roadway, from its subgrade to base to surface course. Because chemical and physical characteristics of CCBs can vary widely based on the type of coal burned, there was initial concern over the ability to achieve consistent performance. Yet, tests in a wide variety of CCB field projects show that specifications can be developed that produce strong, cost-effective byproduct-enhanced paving mixtures. The new mixtures seem to work especially well with problem soils. |
| 总页数： | Texas Transportation Researcher. 2000. 36(1) pp4 |
| 报告类型： | 科技报告 |
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