| 摘要 |
<p>Use of substituted alkyl phosphonates, known per se, in concrete and mortar mixes, cement slurries (cement paste) as well as in aqueous latex paints, in quantities of between 0.001 and 1.0 % by weight in relation to the cement, in concrete and mortar mixes and cement slurries, or between 0.1 and 0.32 % by weight in relation to the content of solid matter of the dispersion, in latex paints, in order to reduce the diffusion of carbon dioxide into the concrete parts and possibly to increase the compression strength of concrete parts.</p> |
