Sodium Gluconate

Sodium Gluconate

Concrete Admixture Raw Material | Set Retarder | Water Reducer Support

Sodium Gluconate is the sodium salt of gluconic acid and is widely used in construction-chemical formulations, particularly as a set-retarding and water-reducing support agent in cement and concrete admixtures.

It can help extend the setting time of cementitious materials, improve workability retention and provide better control over concrete performance, particularly in warm-weather conditions when properly formulated.

Product Description

Sodium Gluconate is a highly water-soluble organic salt used in various industrial applications. In the construction industry, it is mainly used as a functional component in concrete admixtures, cement additives and specialty construction-chemical formulations.

When incorporated into a properly designed admixture, Sodium Gluconate can slow the hydration and setting process of cement. This provides additional time for mixing, transportation, placing and finishing.

The actual performance depends on dosage, cement chemistry, temperature and the other components used in the admixture.

Key Benefits & Advantages

– Helps extend concrete setting time
– Improves workability retention
– Provides controlled retarding action
– Helps maintain workability during transportation and placement
– Useful in hot-weather concrete applications
– Can support water-reducing admixture performance
– Highly soluble in water
– Suitable for liquid admixture formulations
– Useful for developing customized concrete-admixture systems
– Compatible with many commonly used admixture ingredients when properly formulated

Main Applications

1. Concrete Admixture Manufacturing

Used as a functional raw material in the production of water-reducing and retarding admixtures.

2. Ready-Mix Concrete

Can be used in admixture formulations where extended workability and setting-time control are required.

3. Hot-Weather Concrete

Useful in formulations designed for high-temperature conditions where maintaining workability for a longer period is important.

4. Precast & Construction Applications

Can be incorporated into selected admixture systems for precast and general concrete applications.

5. Cement-Based Formulations

Used as a setting-control component in selected cementitious products.

How It Works

Sodium Gluconate interacts with the cement hydration process and can delay the hydration reactions responsible for setting.

This retarding action can provide additional working time. When combined with suitable water-reducing materials such as Sodium Lignosulfonate, it can be used to develop admixture formulations offering both workability improvement and setting-time control.

Recommended Usage

The optimum dosage depends on the complete admixture formulation and concrete mix design.

Performance may vary depending on:

– Cement type
– Cement manufacturer
– Cement dosage
– Water-cement ratio
– Ambient temperature
– Required setting time
– Desired slump retention
– Other admixture chemicals
– Storage conditions of the finished admixture

Laboratory testing is strongly recommended to determine the optimum dosage before commercial production.

Overdosing may result in excessive setting retardation and should therefore be avoided.

Compatibility

Sodium Gluconate can be used with appropriately selected construction-chemical ingredients, including:

– Sodium Lignosulfonate
– Other water reducers
– Plasticizers
– Defoamers
– Selected set-control agents
– Other cement-admixture components

Compatibility should always be evaluated through laboratory testing because cement chemistry and formulation composition can significantly affect performance.

Packaging

Common industrial packaging:

– 25 kg bag

Custom packaging may be available depending on supplier and order quantity.

Storage

– Store in a cool, dry and well-ventilated place.
– Protect from moisture.
– Keep the bag tightly closed when not in use.
– Avoid direct sunlight and excessive humidity.
– Store on pallets and keep away from direct floor contact.
– Prevent contamination by dust, water and other chemicals.

Precautions

– For industrial use.
– Avoid unnecessary dust inhalation during handling.
– Use appropriate PPE.
– Avoid contact with eyes and prolonged skin contact.
– Keep the material dry during storage.
– Follow the manufacturer’s SDS and TDS.
– Conduct laboratory trials before using in commercial admixture production.

Why Buy Sodium Gluconate?

Sodium Gluconate is an important functional raw material for manufacturers developing concrete water reducers, plasticizers and retarding admixtures.

Its combination of high-water solubility and setting-control capability makes it particularly useful when a formulation requires longer working time and better control of cement setting.