USE OF SOLS FOR TREATING SURFACES OF UNHARDENED AND HARDENED BINDER SUSPENSIONS

摘要

The invention concerns the use of sols of non-metals or metals, their oxides, hydroxides, oxihydrates and/or polymers thereof (e.g. hetero-polyacids) for reducing proneness to cracking during hardening of unhardened binder suspensions (such as fresh concrete, ready-mix) and for secondary treatment of binder suspensions (e.g. concrete) which have hardened.