| 摘要 |
<p>The invention has for its object: a fabrication process of hydraulic binders, characterized in that it consists: I. in preparing an active product according to a method comprising the following steps: selection of a raw material containing intimately mixed clay phases and calcium carbonate; heat treatment of said material at a temperature between 700 and 900 degrees C.; application during the heat treatment of a partial pressure of carbonic gas opposing the thermal dissociation of the calcium carbonate beyond that which combines with the clay phase; achievement of a simultaneous activation of the clay phases by dehydroxylation (pozzolanic activation) and of the clay-lime combinations with potential hydraulic properties, without formation of free lime; II. in mixing up to 95% of the active product so obtained with the corresponding complement to 100% of an activating product generating calcium hydroxyde.</p> |
