Application of sodium gluconate in construction industry

Concrete is a composite material made of cement, aggregate, admixture and water. Concrete is the most abundant of all man-made materials. Three quarters of concrete is aggregate, but the most active component in concrete is cement slurry. The properties and properties of concrete are mainly determined by the properties of cement slurry. The admixture in concrete can provide some beneficial effects such as accelerating solidification, delaying solidification, making air into a bubble, reducing water consumption and increasing plasticity. It is common to use several admixtures in cement at the same time, and the different admixtures can reinforce each other in some applications. Sodium gluconate can be used as an admixture in concrete, and its functions in concrete are as follows: water reducer and retarder sodium gluconate are generally used alone, but can also be used in combination with other retarders such as carbohydrates and phosphates. Sodium gluconate is a crystalline powder. It is produced under properly regulated and controlled conditions. This compound is chemically pure and non-corrosive. The mass is constant. These characteristics guarantee reliable and repeatable results in applications.
Sodium gluconate Sodium gluconate as a water reducer
The water-cement ratio (W/C) can be reduced by adding a water-reducing agent. The following effects can be obtained by adding sodium gluconate: 1. Improve workability. When the water-cement ratio (W/C) remains unchanged, adding sodium gluconate can improve workability. At this time, sodium gluconate acts as a plasticizer. When the amount of sodium gluconate is less than 0.1%, the degree of improvement in workability is proportional to the amount added. 2. Increase intensity. The water content in the concrete can be reduced (i.e. W/C is reduced) while the cement content remains constant. When the amount of sodium gluconate is 0.1%, the amount of water added 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 the same.
Sodium gluconate Sodium gluconate as a retarder
Sodium gluconate can significantly delay the setting time of concrete. When the dosage is less than 0.15%, the logarithm of the initial setting time is proportional to the dosage, that is, the dosage is doubled, and the initial setting time is delayed to ten times, which extends the working time from a few hours to a few days without damaging the strength. This is an important advantage, especially on hot days and for long periods of time.
Sodium gluconate is used as a special cleaning agent for glass bottles
Beverage industry, food industry, brewing industry of hundreds of millions of glass bottles, such as soda bottles, beer bottles, milk bottles, cans, soy bottles, wine bottles, etc., its cleaning work is a very important thing, cleaning agent formula is a difficult technical work. There is not yet an ideal medicine in China. The main problems are: cleaning force is not strong, easy to block the bottle washing machine nozzle and pipeline; The removal of rust on bottle stickers and bottlenecks is not ideal; The trace residue after washing is not ideal for food safety (such as phosphate residue); Washing water discharge as a public hazard (can not meet the national standards). If the pharmaceutical formulation of the glass bottle cleaning agent is changed to sodium gluconate as the main body, the above problems can be solved. (In the 1980s, large-scale tests have been conducted in soda plants and breweries, and it has been verified) The application of this aspect has not been developed in China, and if it forms a market, it has great potential.