Shotcrete Admixture

Shotcrete admixture is a specially formulated chemical additive used to improve the performance of shotcrete (shotcrete).It can accelerate setting time, improve bond strength, and reduce rebound, making it an indispensable material in tunnel construction, mining engineering, and slope stabilization projects. This admixture can ensure the operability, durability, and efficiency of shotcrete construction.

Appearance White or gray powder/liquid
pH value (liquid form) 6-8
Chloride ion content (%) ≤0.1%
Density (g/cm ³) 1.0-1 (liquid form)
Coagulation time Adjustable (Acceleration)
Dosage 3% -8% by weight of cemen

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Description Technical Specifications Applications Packaging&Other Related Products

Main Description

Rapid Setting
Significantly accelerate the setting and hardening time of shotcrete.
Reduce Rebound
Effectively reduce material waste in spraying construction.
Enhanced Bonding
Improve the bonding force between concrete and substrate, suitable for vertical or top construction.
High Durability
Improve the compressive strength and durability of concrete in harsh environments.
Process Diversity
Suitable for wet spraying and dry spraying construction technology.
Strong Compatibility
Can be used with a variety of cement and other admixtures.

Specification

Technical Specifications

Parameter	Numerical value	Remarks
Appearance	White or gray powder/liquid	Available in powder or liquid form
pH value (liquid form)	6-8	Neutral to slightly alkaline
Chloride ion content (%)	≤0.1%	Meet industry standards
Density (g/cm ³)	1.0-1 (liquid form)	Liquid admixture suitable
Coagulation time	Adjustable (Acceleration)	Depending on the amount added
Dosage	3% -8% by weight of cement	Adjust according to application requirements

Field of Application

Tunnel and Mining Engineering
Slope stability and retaining wall construction
Underground excavation and support system
Structural reinforcement and repair
Water conservancy engineering and dam construction

Packaging

Powder Form
25Kg moisture-proof bag, inner plastic lining bag. Customized large packaging can be provided according to demand.
Liquid Form
200L plastic barrel or 1000L IBC container barrel. Bulk storage tank options available for large projects.

Solutions

Add Method
Admixtures can be directly added to concrete or added during the spraying process through metering equipment. The usual dosage is 3% -8% of the weight of cement , depending on the required setting time and construction conditions.
Stirring Process
Ensure that the admixture is evenly distributed in the concrete. In dry spraying construction, additives can be premixed with cement or added during the spraying process. In wet spraying construction, it is recommended to use a high-efficiency pump for even addition.
Water Quantity Control
Maintain an appropriate water-cement ratio to ensure optimal performance.
Applicable Environment
Suitable for wet spraying and dry spraying processes. • Recommended operating temperature range is 5 ° C to 35 ° C .

Performance Characteristics

Compressive Strength
Significantly improves the early and final compressive strength of concrete.
Operability
Maintain good fluidity and injection performance.
Alkali-free Formula
Provides alkali-free options, safer and more environmentally friendly.
Anti-contraction Performance
Reduce the risk of cracking caused by contraction.

Storage and Shelf Life

Store in a dry, cool, and ventilated place, avoid moisture and direct sunlight.
Shelf Life
Powder form: Can be stored for 12 months under sealed conditions. • Liquid form: Can be stored for 6 months , avoid freezing at low temperatures.

Safety Precautions

Avoid contact with skin and eyes during operation. It is recommended to wear protective gloves and goggles.
If accidentally touched, immediately rinse with plenty of water.
Residual materials and packaging should be properly handled in accordance with local regulations