Patent ID: 6712900
Filing Date: 2004-03-30
Classification: C04B

Abstract:
A method for the reduction of the degree of shrinkage of hydraulic binders in pure form or as admixture with latent hydraulic binders or inert fillers, as well as thereof produced mortar or concrete, said method comprising admixing a shrinkage reducing agent and a hydraulic binder or composition containing a hydraulic binder or inert fillers, said shrinkage reducing agent comprising:a) at least one alkanolamine of formula I Râ€”NHâ€”(AOH)â€ƒâ€ƒI, wherein R is hydrogen or a linear or a branched aliphatic or cyclic C1-C6-alkyl group, and A is a C2H4â€” or C3H6-group, alone or in combination withb) at least one hydroxy compound and/or c) at least one ether compound.