| 摘要 |
<p>An iron complexing, pH neutral to basic compound is utilized as an activator, especially for shortening the setting times and for. increasing the early and long-term strengths, in a hydraulic binder which contains, as the additive, a soluble salt of carbonic acid. The ferrite proportion of the binder should amount to at least 4% by weight. The ironcomplexing compound is to be admixed to the binder in the dry state. A hydraulic binder according to this invention contains preferably at least 3 mmol-% of an iron-complexing compound and a carbonate donor in a molar ratio, based on the iron-complexing compound, of between 0.3 and 4.</p> |
