| 摘要 |
<p>PROBLEM TO BE SOLVED: To reutilize concrete waste material and coal ash as a roadbed material or a soil improvement material, etc., by compounding a specific quantity of hardened coarse crushing product blended a specific quantity of coal ash and normal cement with the concrete waste material and molded. SOLUTION: In order to reutilize the concrete waste material generating at buildings and civil engineering works, etc., and the coal ash generating at a coal thermoelectric power plant as the roadbed material, 15-25wt.% the hardened coarse crushing product mixed 85-95wt.% the coal ash with 5-15wt.% normal cement and molded, is compounded with 75-85wt.% the concrete waste product. Since a ratio of the concrete waste product is as high as 75-80wt.%, a filling up quantity into a disposal place is reduced and saving of a disposal fee and maintenance of the disposal place are not only attained, but also extremely high uniaxial compression strength can be obtained. Then, the product can be effectively utilized as the roadbed material or a pavement materials or a soil improvement material for plant cultivation.</p> |
