| abstract |
The present invention relates to an additive for hydraulically setting substances, which can be used as a curing accelerator, comprising a) at least one structural unit comprising an anionic or anionogenic group and a poly Polymer dispersants of structural units of ether side chains; b) at least one sulfonic acid compound of formula (I) Wherein A 1 represents NH 2 , NHMe, NMe 2 , N(CH 2 ‑CH 2 ‑OH) 2 , CH 3 , C 2 H 5 , CH 2 ‑CH 2 ‑OH, phenyl or p-CH 3 ‑phenyl and K n+ represents an alkali metal cation or a cation selected from Ca 2+ , Mg 2+ , Sr 2+ , Ba 2+ , Zn 2+ , Fe 2+ , Fe 3+ , Al 3+ , Mn 2+ or Cu 2+ cationic equivalents; and c) calcium silicate hydrate particles. |