| abstract |
A low-dosage high-early-strength type alkali-free liquid quick-setting agent and a preparation method thereof. The alkali-free liquid quick-setting agent is prepared from the following raw materials: modified aluminum sulfate 50% to 60%, fluorine aluminum complex Solution 2%～4%, organic cosolvent 3%～6%, pH adjuster 1%～2%, inorganic stabilizer 0.5%～1.5%, viscosity adjuster 0.3%～0.5%, compound early strength agent 4%～ 6%, the balance is water, and the sum of the mass percentages of the above components is 100%. The present invention also provides a preparation method of the alkali-free liquid quick-setting agent. The alkali-free liquid quick-setting agent has a simple preparation process, does not contain hydrofluoric acid, alkali-free, chlorine-free, does not corrode steel bars, does not pollute the environment, and does not harm the body of workers. % to 6% can meet the technical requirements of GB/T35159‑2017 for alkali-free accelerators, 1 day compressive strength ≥ 13.0MPa, low dosage, good stability, high early strength, and later strength retention rate. specialty. |