Product Data Sheet Show all documents

Sika® Sigunit® L-5601 AF

ALKALI-FREE LIQUID SHOTCRETE ACCELERATOR

Sika® Sigunit® L-5601 AF is a high-performance liquid, alkali-free, suspension-based set accelerator for wet or dry shotcrete applications.

Sika® Sigunit® L-5601 AF provides the following characteristics and benefits:   
  • High early strength development,
  • Improved bond of shotcrete to the substrate,
  • Easier overhead spraying by improved adhesion of shotcrete to substrate,
  • Distinct reduction of rebound and dust,
  • Reliable long-term strength and durability,
  • Minimal strength loss of the accelerated concrete,
  • Suitable for steel reinforced shotcrete and substrates,
  • Suitable for synthetic and steel fiber reinforced shotcrete,
  • Alkali-free; Avoids pollution and leachate of alkalis into ground and surface water.
   Sika® Sigunit® L-5601 AF does not contain intentionally added chlorides.  
Product Data Sheet Show all documents

Usage

Sika® Sigunit® L-5601 AF is a suitable shotcrete accelerator for both wet and dry shotcrete applications including, but not limited to:   
  • General construction work,
  • Excavation stabilisation of face and within tunnel and mine construction,
  • Rock, slope, and trench stabilization,
  • High quality lining shotcrete.
 

Advantages

Sika® Sigunit® L-5601 AF provides the following characteristics and benefits:   
  • High early strength development,
  • Improved bond of shotcrete to the substrate,
  • Easier overhead spraying by improved adhesion of shotcrete to substrate,
  • Distinct reduction of rebound and dust,
  • Reliable long-term strength and durability,
  • Minimal strength loss of the accelerated concrete,
  • Suitable for steel reinforced shotcrete and substrates,
  • Suitable for synthetic and steel fiber reinforced shotcrete,
  • Alkali-free; Avoids pollution and leachate of alkalis into ground and surface water.
   Sika® Sigunit® L-5601 AF does not contain intentionally added chlorides.  

Packaging

Available in 5-gallon (19-liter) drums, 55-gallon (208-liter) drums, 275-gallon (1040-liter) totes, and bulk delivery.

Color

White Liquid.

  

Separation may occur on surface level of Sika® Sigunit® L-5601 AF. This is a natural tendency for suspension-based product and when mixed, separation does not indicate adverse performance.

Product Details

Product Information

Shelf Life

Shelf life when stored in dry covered area between

41°F to 86°F (5°C to 30°C) is 6 months from manufacturing date.

Storage Conditions

Store in a dry covered area in original, undamaged, and sealed container. Protect from direct sunlight. If frozen, product must be defrosted or heated to minimum 41°F (5°C) and thoroughly mixed before transfer or usage. 

  

Weekly mixing is recommended to retain viscosity, as thickening will occur. Contact your Sika Technical Representative for more information.

Specific gravity

Approx. 1.460

Application

Application Information

Compatibility

Sika® Sigunit® L-5601 AF can be used in combination with other Sika admixtures and can be successfully used in mix designs utilizing supplementary cementitious materials. For accurate combinations, please contact your Sika Technical Representative for further information.

Mixing

Sika® Sigunit® L-5601 AF should be thoroughly homogenized by mixing 30 minutes prior to use or down-packing.

  

During storage, product is recommended to mix weekly to retain viscosity, as thickening will occur. Recommended mixing methods varies depending on multiple factors. Please contact your Sika Technical Representative for more information and for the "Sika® Sigunit® L-5601 AF Recommended Storage and Handling" document.

 

Equipment

Sika® Sigunit® L-5601 AF is dosed and added on-site by a liquid dispensing system. Optimum dispersion in the shotcrete is governed by nozzle configuration and shotcreting techniques.

   

Important information:

  • The accelerator hose must be thoroughly cleaned prior to using Sika® Sigunit® L-5601 AF.
  • Compatible with membrane pumps, rotor-stator pumps, peristaltic pumps, and gear pumps.
  • Do not use any pumps that utilize ball-and-seat type valves, piston pumps, or pressure tanks.
  • Metal parts of the dosage equipment and/or pump coming into direct contact with Sika® Sigunit® L-5601 AF must be made of stainless steel.
  • Do not use a filter on the accelerator hose, it will get clogged and obstruct flow.
  • Mixing equipment must be cleaned before using to prevent contamination.

   

The use of Sika® Sigunit® L-5601 AF requires skilled and technically correct installation of dosing and conveying equipment. Please contact your Sika Technical Representative for further information and for the "Sika® Sigunit® L-5601 AF Recommended Storage and Handling" document.
Consumption

Recommended Dosage

The correct dosage must be determined by preliminary testing. Many different factors contribute to the performnace of Sika® Sigunit® L-5601 AF, see "LIMITATIONS" sections below for more information. Pre-trials should be executed to confirm correct dosage with the equipment and shotcrete that is intended to be used.

   

If Originial Portland Cement (OPC) is greater than 65% in mix design, the maximum dosage is up to 9% by weight of cementitious/binding material. Dosages above 9% should be avoided. 

    

Contact your Sika Technical Representative, prior to using Sika® Sigunit® L-5601 AF.

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