Silicate-Based Concrete Fast Setting Admix

Silicate-Based Concrete Fast Setting Admix

Fast Harden FL61

Liquid Concrete Accelerator

What is Silicate-Based Concrete Fast Setter?

Silicate-based liquid concrete fast setter is an accelerator for cement and concrete based on sodium silicate that speeds up the setting time of cement in cement and concrete slurries. This additive improves the water resistance of the mortar and concrete, and also enhances the hardness of the concrete. It increases the bonding between the particles of the cement slurry, making it suitable for injection operations into soil to reduce permeability. This accelerator is also ideal for injecting cement slurry into cracks in concrete. Additionally, it is very useful in cold weather for constructing and casting concrete.

In general, this product is often known as a concrete densifier. It is used to increase the durability and strength of concrete surfaces, improving resistance to abrasion, reducing dust, and enhancing the overall durability of the concrete.

Mechanism of Action of Silicate-Based Concrete Fast Setter

The sodium silicate-based concrete accelerators work by creating ion saturation in the cement slurry, which accelerates the initial setting time of the slurry. By controlling the amount of accelerator added, the setting time of the slurry can be adjusted.

Properties and Effects of Silicate-Based Concrete Fast Setter

• Reduces concrete permeability
• Increases concrete strength and durability
• Improves the bonding of components in the mix
• Prevents concrete freezing
• Enhances concrete resistance to corrosion
• Accelerates cement setting time and hydration reaction
• Prevents corrosion of rebar and steel sheets
• Suitable for use in cold weather conditions
• Reduces water bleeding in concrete, achieving higher initial strength

Applications of Silicate-Based Concrete Fast Setter

• Stabilizes and reinforces sandy soils
• Widely used in tunnel and well drilling
• Used for injecting cement slurry into concrete cracks
• Controls the setting time of cement
• Speeds up the use of pre-cast molds
• Suitable for repair works of concrete sections
• Extensively used in tile and ceramic production, and soil stabilization through chemical injection

Physical and Chemical Properties of Silicate-Based Concrete Fast Setter

Property	Value
State	Liquid
Color	Brown
Specific Gravity	1.6 g/cm³
Chloride Ion	None
pH	12
Standard	ASTM C494, ISIRI 2930, EN 934-2

Consumption Rate of Silicate-Based Concrete Fast Setter

The exact amount of this product should be determined based on laboratory tests, considering factors like weather conditions, type of cement used, amount of cement, type of aggregates, and the desired setting time. Typically, the consumption rate of silicate-based concrete fast setter is between 1-2% of the cement weight.

How to Use Silicate-Based Concrete Fast Setter

The required amount of silicate-based concrete fast setter, according to the concrete mix design, should be diluted with twice the volume of water. Slowly add the diluted additive to the mixing concrete. This additive can be added to the prepared concrete mix, and after complete mixing, pouring can proceed.

Safety Measures for Using Silicate-Based Concrete Fast Setter

• If it comes into contact with skin or eyes, wash immediately with plenty of clean water.
• If ingested, seek immediate medical attention.
• Use gloves and a suitable mask when handling this product.
• This product is not flammable, but it should not be ingested or come into contact with eyes.

Storage Conditions for Silicate-Based Concrete Fast Setter

• Shelf life: 1 year in original packaging
• Storage conditions: Keep away from freezing temperatures, heat, and prolonged direct sunlight.
• Recommended storage temperature: Between 10°C to 30°C

Packaging of Silicate-Based Concrete Fast Setter

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