| 摘要 |
<p>The invention relates to a composition for preparing cement concrete as well as asphalt concrete, which, besides the components of both concrete kinds, further comprise at least one from the following additives: a) natural stones, b) synthetic materials such as one or more of the following components: foam ashes, furnace slags, expanded clay, sintered fly ashes, and expanded schists, c) synthetic fibers. r</p> |
