| 摘要 |
The invention aims at a composition comprising a hydraulic binder, water and a polyoxyalkyleneamine alkylene phosphonate as a retardant additive, in particular according to the general formula (I) :
wherein : R 1 to R 6 , identical or different, are alkylene groups or a bond ;
M a monovalent metal ion, ammonium or hydrogen; and
n is an average number from 1 to 50. |
