Description: Rapid-Setting Admixture for Shotcrete. The product is alkali-free and chloride-free, supplied in liquid form, and is suitable for both dry-mix and wet-mix shotcrete systems.
Density: 1.3 +/-0.1 (20°C)
pH: 3.0-8.0
Appearance/ Color: Liquid, Light yellow
Usage Dosage: 2.0-7.0 lit/100kg cement
Characteristics
The product is a liquid admixture for shotcrete, applicable for both dry-mix and wet-mix spraying processes.
It provides rapid setting, meeting the requirements of multi-layer application and ensuring high early strength development.
The accelerator allows the sprayed mortar to set and harden quickly, thereby shortening spraying cycles and enabling thicker layer application.
It enhances the adhesion of sprayed mortar to overhead and vertical surfaces, improving bonding efficiency and reducing rebound.
The product is non-corrosive and does not adversely affect reinforcing steel or mesh within the concrete structure.
Application
Used in sprayed mortar or shotcrete works such as:
Reinforcement of tunnel crowns, walls, etc., in hydropower tunnels, mountain tunnels, mining tunnels, and service tunnels.
Temporary or permanent rock bolting in tunnels and rock anchoring in mining operations.
Construction areas requiring rapid hardening or immediate concrete stabilization.
Compatibility with Other Materials
Can be used in combination with other admixtures such as silica fume, anti-corrosion agents, fly ash, waterproofing additives, and pumping aids.
It is recommended to carry out trial mixes to determine the appropriate dosage for specific concrete conditions and performance requirements.