Product Data Sheet Show all documents

Sika® Sigunit® L-93 AF (I)

Alkali Free liquid accelerator shotcrete admixture

Sika® Sigunit® L-93 AF (I) is a highly effective alkali free accelerator for shotcrete in liquid form. 

Sika® Sigunit® L-93 AF (I) produces high quality shotcrete. It has following advantages:
  • Free from alkali (non-caustic), non toxic product
  • Good long term strength and durability
  • In case of proper application, minimum loss of solidity of the catalysed concrete
  • Reduction of rebound
  • Improved  adhesion of the sprayed concrete on rock and concrete
  • Improved adhesion in the over head crown portion
  • Clear reduction of dust and a good working environment
  • Free from chloride and does not attack reinforcement
Product Data Sheet Show all documents

Usage

Sika® Sigunit® L-93 AF (I) is an accelerator suitable for dry as well as wet spray applications. It is used for the following main applications :
  • Securing of rock in tunnel construction
  • Rock and slope stabilization
  • High quality shotcrete for general construction work
 

Advantages

Sika® Sigunit® L-93 AF (I) produces high quality shotcrete. It has following advantages:
  • Free from alkali (non-caustic), non toxic product
  • Good long term strength and durability
  • In case of proper application, minimum loss of solidity of the catalysed concrete
  • Reduction of rebound
  • Improved  adhesion of the sprayed concrete on rock and concrete
  • Improved adhesion in the over head crown portion
  • Clear reduction of dust and a good working environment
  • Free from chloride and does not attack reinforcement

Packaging

300 Kg HDPE drum

Colour

Beige white coloured suspension type liquid

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

ASTM C 1141 Type I,II Grade 9 Class A.
Product Information

Chemical Base

Mixture of special organic substances

Shelf Life

6 months from date of production if stored in undamaged and unopened, original sealed containers.

Storage Conditions

Store in dry condition, protected from direct sunlight and frost, at temperatures between +5°C and +35°C.

Opened containers must be used as quickly as possible. It is recommended always stir well Sika® Sigunit® L-93 AF (I) before use.

Density

~1.46 Kg/l  at 25ºC

pH-Value

1.5 - 3.5 at 25ºC

Total Chloride Ion Content

No added chlorides
System information

Compatibility

Sika® Sigunit® L-93 AF (I) is compatible with all types of cements and cementitious materials.

It is also compatible with many Sika® products.

Application

Application Information

DISPENSING

  • Sika® Sigunit® L-93 AF (I) is metered and added using a liquid dispensing system
  • Optimum dispersion in the shotcrete is governed by nozzle configuration and shotcreting techniques
Consumption

Recommended Dosage

In general a dosage of 3 - 10% is by weight of cementitious content.

The most effective dosage must be determined by site trials.

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