Sodium Gluconate

         Sodium gluconate is an organic material, chemical formula for C6H11NaO7, in the industry is very wide range of uses, sodium gluconate can be used in construction, textile printing and dyeing and metal surface treatment and water treatment industries as a high-efficiency chelating agent, iron and steel surface cleaning agent, glass bottle cleaning agent, electroplating industry, aluminum oxide coloring, used as a high-efficiency retarding agent, high-efficiency water reducer and so on in the concrete industry.

Main effects of sodium gluconate：

Sodium gluconate as water reducing agent：
        By adding water reducing agent, the water/cement ratio (W/C) can be reduced. The following effects can be obtained by adding sodium gluconate: 1. Improvement of workability. The addition of sodium gluconate improves the workability when the W/C ratio remains unchanged. In this case, sodium gluconate acts as a plasticizer. In the sodium gluconate addition of 0.1% or less, the degree of improvement of workability is proportional to the amount added. 2. Improvement of strength. When the cement content remains unchanged and the water content in the concrete can be reduced (i.e. W/C is reduced). When the addition of sodium gluconate is 0.1%, the amount of water can be reduced by 10%. 3. Reduce the cement content. The water and cement content is reduced in the same proportion, and the W/C ratio remains unchanged.
Sodium gluconate as retarder：
        Sodium gluconate can significantly delay the setting time of concrete. At dosages of 0.15% or less, the logarithm of the onset setting time is proportional to the dosage, i.e. doubling the dosage delays the onset setting time up to ten times, which extends the time that can be worked from very few hours to a few days without loss of strength. This is an important advantage, especially in hot weather and when long periods of time are required.