| 摘要 |
The present invention relates to cement compositions comprising an alkali-swelling latex and to cements obtained from these compositions. These compositions are characterised in that they comprise: - a cement; - an alkali-swelling latex. The cement may be of the silicate type, more particularly of the Portland type. The alkali-swelling latex is generally based on polymers containing one or more copolymerised ethylenically unsaturated carboxylic acids or alkyl esters of these acids. |
