| 摘要 |
<p>The invention relates to compositions that are intended to be applied to freshly-poured concrete and/or mortar surfaces before the surface begins to set so as to (i) prevent the evaporation of the water present in said mortars and/or concretes, which is necessary for the setting and hardening thereof, and (ii) provide the treated surfaces with a strong adhesion capacity in relation to the finishing materials used to cover same. The inventive compositions take the form of aqueous emulsions comprising at least one paraffin (a) which is used alone or associated with at least one hydrocarbon compound (b) and/or at least one other hydrocarbon compound (c) which is different from the carbon-containing compound (b), at least one latex (d) which is formed by a colloidal aqueous emulsion of at least one polymer and at least one mineral or organic powder filler (e).</p> |
