| abstract |
The invention discloses an alkali-free liquid accelerator and a preparation method thereof. The alkali-free liquid accelerator comprises 3-15% of silicate, 35-50% of aluminum sulfate, 5-15% of organic amine, 0-3% of a stabilizing agent, 0-5% of a lithium salt and the balance water. Compared with the product obtained by the traditional technology, the alkali-free liquid accelerator has the advantages of low rebound rate, short coagulation time, high early-stage strength, and less even almost no after-stage strength loss. |