Product Data Sheet Show all documents

Sika® Sigunit® L-54 AF

ALKALI FREE LIQUID ACCELERATOR SHOTCRETE ADMIXTURE

Sika® Sigunit® L-54 AF is an alkali free accelerator in liquid form for shotcrete applications.

  • Alkali free (non-caustic) and classified as non-toxic product.
  • Very fast setting of shotcrete mixes
  • No strength loss of the accelerated concrete if used correctly
  • No additional contamination of mountain and ground water due to washed out alkalis
  • Large reduction in rebound
  • Improves bond of shotcrete to rock and concrete, making overhead spray easier.
  • Free of chlorides, no danger to steel reinforcement and steel fibres.
  • Low viscosity – less pumping problems
Product Data Sheet Show all documents

Usage

Sika® Sigunit® L-54 AF is a set accelerator suitable for both wet and dry spray applications.
Sika® Sigunit® L-54 AF is mainly used in :
  • Securing of rock in tunnel mine construction.
  • Rock and slope stabilisation
  • High quality shotcrete for general construction work.
 

Advantages

  • Alkali free (non-caustic) and classified as non-toxic product.
  • Very fast setting of shotcrete mixes
  • No strength loss of the accelerated concrete if used correctly
  • No additional contamination of mountain and ground water due to washed out alkalis
  • Large reduction in rebound
  • Improves bond of shotcrete to rock and concrete, making overhead spray easier.
  • Free of chlorides, no danger to steel reinforcement and steel fibres.
  • Low viscosity – less pumping problems

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-54 AF before use as with prolonged storage it can have a certain settlement as it is suspension type material

Density

at +25 °C

1.40 – 1.44 kg/L

pH-Value

at +25 °C

1.5 – 3.5

Total Chloride Ion Content

No added chlorides
System information

Compatibility

Sika® Sigunit® L-54 AF is compatible with all types Cements and standard cement replacement materials.

It is also compatible with the following Sika Product system Sikatards, Sikaments,Viscocrete,Sikaplast, SikaPump etc.

Application

Application Information

DISPENSING

  • Sika® Sigunit® L-54 AF is metered and added using a liquid dispending system.
  • Optimum dispersion in the shotcrete is governed by nozzle configuration and shotcreting techniques
Consumption

Recommended Dosage

In general a dosage 3 - 10 % by weight of cementitious content.
The most effective dosage must be determined by site trials.

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