CONCRETE PRODUCTS WITH HIGH-STRENGTH USING RECLAIMED COAL ASH AND WASTE STONE POWDER AS FINE AGGREGATES AND ITS MANUFACTURING METHOD

摘要

The present invention relates to a method for manufacturing high-strength concrete products made of reclaimed ash and fine ash aggregates, and in the high-strength concrete products using landfill ash and a method for manufacturing the same, 5 mm or less in diameter selected and discharged from a coal fired boiler low ash processing system. High speed washing of the landfill; Dewatering the wash landfill; Reducing the aggregate particle size by mixing the dehydrated landfill with stone powder to rub against each other in a rotary mill; Adding slag cement to the landfill / stone powder mixture; Adding a polymer admixture, a water repellent, an expander, and a gypsum; 50 to 63.5% by weight of landfill ash, 15 to 25% by weight of stone powder, and 11.5 to 25% by weight of slag cement, characterized in that the present invention can effectively recycle the landfill ash.;Landfill, high strength, concrete, stone powder, slag cement, thermal power plant, pozzolanic, bottom ash