| 摘要 |
<p>PURPOSE:To provide an inexpensive regenerated roadbed course material excellent in the roadbed supporting power at the initial stage and over a long period, water resistance, execution property, etc., by using a waste cement concrete material as the industrial waste as the essential material and mixing appropriately coal ash as the industrial waste into the essential material. CONSTITUTION:The waste cement concrete material as the industrial waste is crushed by a crusher such as a jaw crusher to appropriate grain size. An appropriate amt. of water is then added to the crushed material using a ribbon mixer, etc., and coal ash as the industrial waste is further mixed to produce a regenerated roadbed course material. About 50-2 pts.wt. of coal ash is appropriately mixed with 50-98 pts.wt. of the waste cement concrete material. The gap between the aggregates consisting of the waste cement concrete material is filled with the coal ash in the obtained roadbed course material, the pozzolanic reaction is further caused between the waste cement concrete material and coal ash, and consequently an excellent roadbed supporting power is exhibited.</p> |
