| abstract |
The development of dust, which occurs in the processing of concrete in the dry spraying process in the area of the spray nozzle, can be effective by the addition of alkali salts of polymeric carboxylic acids of the general formula be reduced to the concrete mix. In the formula, x and y are integers in the ratio 1: 4 to 1: 0 and R is hydrogen or methyl. A special advantage is that this additive does not impair the effect of solidification accelerators. |