TamShot 80AF – Sprayed concrete quick set accelerator

TamShot 80AF is commonly used for wet mix shotcrete processes in the tunnelling and mining industry. The product is applied where initial rock support is needed or where a permanent lining has been designed (single shell tunnel lining).

TamShot 80AF is a high-performance quick-setting liquid additive for sprayed concrete applications.

By adjusting the dosage, setting times and rebound can be positively influenced without risking a caustic work environment due to its low alkali content (< 1 %).

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Key Benefits
  • Fast setting times and high early strength 
  • High final compressive strength development after 28 days and excellent long-term durability. 
  • High early strength allows for spraying in thicker layers. 
  • Factory controlled quality formula, tailor made for high temperature and high humidity application environments. 
  • Very low dust production during application ensures safer working environment.


Typical Applications

TamShot 80AF reacts with all commonly used Portland cement types and therefore can be used to accelerate all cement based grouts or concrete types where fast setting of the substrate is required.
Typically, TamShot 80AF is used in the civil and underground construction industry for applications such as: 

  • Rock support in tunnels and mines
  • Slope stabilization 
  • TBM tunnel linings / backfilling 
  • Soil stabilization in poor ground conditions
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