Sodium gluconate is a cement water-reducing agent, which plays a certain role in concrete, specifically as follows:

1. Reduce the water-cement ratio of concrete, thereby improving the strength and durability of concrete.

2. Improve the fluidity and pumpability of concrete, which is conducive to the construction and pouring of concrete.

3. Reduce the cohesion and surface tension of cement cement, reduce the porosity inside the concrete and shorten the setting time.

4. Improve the surface quality of concrete, reduce the shrinkage cracks and cracks of concrete, and improve the durability and crack resistance of concrete.