| abstract |
The invention discloses a concrete anti-seepage and anti-freezing admixture suitable for complex plateau environment and a preparation method thereof. In terms of mass fraction, the raw material composition is: 10-15% of sodium dodecylbenzene sulfonate, calcium nitrite 7～10%, calcium formate 3～6%, methanol 5～8%, ethylene glycol 4～7%, sodium gluconate 2～5%, sodium polyacrylate 1～3%, polyoxyethylene ether 11～14% , the balance is deionized water. The anti-seepage and anti-freezing admixture of the invention can not only realize the construction of concrete under low temperature and negative temperature conditions, prolong the construction period of concrete, but also improve the early strength of concrete, and effectively improve the durability of concrete and the complex environment conditions in the plateau. lower service capacity. |