Fast Setting Concrete Plasticizer

Fast Setting Concrete Plasticizer

Concrete Plasticizer

Fast Harden
PL77-F

Water Reducer and Plasticizer
With Accelerating Set Property

What is Fast Setting Concrete Plasticizer?

Fast setting concrete plasticizer is a liquid additive formulated with lignosulfonates and fast setting agents for concrete, designed to increase the workability and efficiency of concrete mixtures and reduce the water-to-cement ratio. In addition to these properties, it enables faster strength development and durability. The use of this plasticizer accelerates the setting time and increases the hydration speed of water with cement, which makes it suitable for concrete pouring in cold and freezing weather conditions. It should be noted that while the early-age strength of concrete with lignosulfonates is relatively low, the desired strength can be achieved after 90 days. Moreover, the use of this product can reduce water content in the concrete by about 10%.

In general, this additive is a new generation of concrete plasticizers that not only increases the slump of concrete but also accelerates setting time and early strength development. This product prevents the aggregation of cement particles and facilitates the flow of concrete, a particularly important feature in cold weather when the setting process slows down.

Mechanism of Action of Fast Setting Concrete Plasticizer

How does the Fast Setting Concrete Plasticizer improve concrete quality?

When the fast setting concrete plasticizer based on lignosulfonates is added to water and cement, its polar anionic groups connect to a hydrocarbon chain, which is also polar and contains several OH groups. By adding this material to the mix, the polar end of the plasticizer molecule attaches to the cement particles and, due to the bipolarity of the particles, prevents their aggregation. This increases the workability of the mix and improves the dispersion of particles in the concrete mix. Additionally, the formulation of the fast setting concrete plasticizer based on lignosulfonates includes materials that accelerate the setting time and speed up the hydration process when in contact with cement.

How to Identify High-Quality Fast Setting Concrete Plasticizer?

The fast setting concrete plasticizer should have an appropriate concentration of solid materials and be used according to the specified dosage in the product catalog for optimal performance. If the concentration and quality of the fast setting concrete plasticizer are inadequate, more of it must be added to the concrete, leading to excess water entering the mix, which may reduce the concrete’s strength. Furthermore, it is important to ensure that standard materials are used to accelerate the setting process and that no harmful acids are present for cement hydration. A well-formulated fast setting concrete plasticizer should have a specific setting acceleration rate determined by the manufacturer.

Properties and Effects of Fast Setting Concrete Plasticizer

What effects does the fast setting concrete plasticizer have on concrete?

• Prevents shrinkage and contraction of concrete
• Increases slump and workability of concrete
• Extends the workability time of the concrete
• Prevents the formation of surface cracks in concrete
• Increases compressive and flexural strength
• Achieves early-age compressive strength
• Reduces water content in concrete by about 10%
• Saves on cement consumption
• Increases durability and longevity of concrete
• Prevents creep of concrete
• Prevents segregation of aggregates and bleeding in concrete

Applications of Fast Setting Concrete Plasticizer

What are the major applications of fast setting concrete plasticizer?

• Suitable for pre-stressed and post-tensioned concrete applications
• Suitable for concrete production with crushed stone aggregates
• Concrete pouring in areas with dense rebar
• Suitable for all structural concrete elements
• Ideal for use in cold weather concrete pouring
• Suitable for producing pumpable concrete
• Suitable for producing concrete bricks and blocks for projects where reduced water content is essential to decrease permeability
• Increases bonding of aggregates in concrete with poor gradation

Physical and Chemical Properties of Fast Setting Concrete Plasticizer

What are the physical and chemical properties of the fast setting concrete plasticizer?

• Form: Liquid
• Color: Brown
• Specific Gravity: 1.12 gr/cm³
• pH: Around 7
• Standards: ASTM C494, ISIRI 2930
• Chloride Ion: None

Standards for Fast Setting Concrete Plasticizer

Which international standards is the fast setting concrete plasticizer produced according to?

• ASTM C494

Usage Rate of Fast Setting Concrete Plasticizer

How much fast setting concrete plasticizer should be used?

The exact dosage of the fast setting concrete plasticizer depends on the climatic conditions, laboratory tests, and the type of materials used. The best usage range for this product is between 1.5% and 2% of the cement weight in concrete. Excessive use of the product will lead to excessively fast setting, which may disrupt the hydration process and result in weak concrete properties. Overuse is not recommended, and it is advisable to consult with experts at Beton Plast Chemical Company if necessary.

Price of Fast Setting Concrete Plasticizer

The price of the fast setting concrete plasticizer is determined by its concentration, production formulation, and its performance in concrete. It is recommended to consider the suggested usage rate provided by the manufacturer before selecting and purchasing the product. For price inquiries, please contact Beton Plast’s sales department. Keep in mind that price alone should not be the sole determining factor when purchasing the product.

How to Use Fast Setting Concrete Plasticizer?

How should the fast setting concrete plasticizer be used?

1. Calculate the amount of the fast setting concrete plasticizer and dilute it with twice the volume of the concrete mixing water. Gradually add the diluted additive to the concrete mix during the mixing process.
2. The plasticizer can be added directly to the ready-mix concrete, and after thorough mixing, concrete pouring can proceed. It is recommended to mix for at least 1 minute per cubic meter of concrete.
3. The fast setting plasticizer can be added during the production of concrete in the batching plant or truck mixer.

Note: Do not add the plasticizer directly to dry cement.

Safety Precautions for Fast Setting Concrete Plasticizer

What safety measures should be taken when using fast setting concrete plasticizer?

• This plasticizer is not classified as toxic, hazardous, or flammable.
• In case of skin contact and allergic reactions, consult a doctor immediately.
• The product should not come into contact with eyes. If accidental contact occurs, rinse immediately with plenty of clean water.
• Always wear goggles, gloves, and a suitable mask when handling the plasticizer.

Storage of Fast Setting Concrete Plasticizer

How should the fast setting concrete plasticizer be stored?

• Shelf Life: One year in original packaging.
• Store away from freezing temperatures, heat, and direct sunlight.
• Optimal storage temperature: 10°C to 30°C.

Packaging of Fast Setting Concrete Plasticizer

How is the fast setting concrete plasticizer packaged?

• 20-liter gallon
• 220-liter barrel
• 1000-liter tank