Development direction of early strength properties of calcium formate technical grade in concrete admixture
The raw materials of the concrete are abundant, the price is low, and the characteristics of the simple production process are increasing. Used in actual projects, the admixture has played an important role in improving concrete performance, improving construction efficiency and saving investment costs. Calcium formate early strength agent is one of them. Next, we mainly explain the development direction of some calcium formate technical grade early strength agents. Concrete early strength agent is one of the earliest used additives in the history of admixture development. So far, people have developed a variety of early strength additives in addition to chloride and sulfate, such as nitrite, chromate, etc., and organic early strength agents, such as calcium formate, urea, etc. However, with the deepening of people's understanding of the potential hazards of chloride ions, sulfate ions, nitrate ions and alkali metal ions on the performance and long-term stability of...