| 摘要 |
<p>The nature of the method during which waste concrete sludge is used is based on the fact that concrete sludge containing a max. of 10 % by weight of firmly bound contaminants selected from the group including oil products, heavy metals and organic water-soluble dispersions is mixed with the raw materials for producing building substances such as aggregate, bricks, plaster and concrete in a ratio of 1 to 20 % by weight of concrete sludge in a dried state and 80 to 99% by weight of raw materials for producing building materials related to the total weight of the mixture. The mixture is then processed by the usual building technology.</p> |
