Product Data Sheet Safety Data Sheet Show all documents

Sika® Lightcrete Powder

Powdered foaming admixture

Sika® Lightcrete Powder is a powdered foaming admixture formulated to provide low density concrete and mortar.

Sika® Lightcrete Powder is especially suitable for application on site.
  • Strong foaming properties allow for the production air content up to 35%
  • Less segregation and bleed
  • Provides improved flowability and pumpability
  • Package in water soluble bags for easy dispensing
Product Data Sheet Safety Data Sheet Show all documents

Usage

Sika® Lightcrete Powder is especially suitable for any application where stable low density concrete and mortar is required.
Sika® Lightcrete Powder is mainly used for the following applications:
  • Production of low density concrete and mortar
  • Void fill
  • Lightweight construction
  • Filling utility trenches and pipes (backfill)
  • Variable use in different concrete systems with different raw materials
 

Advantages

Sika® Lightcrete Powder is especially suitable for application on site.
  • Strong foaming properties allow for the production air content up to 35%
  • Less segregation and bleed
  • Provides improved flowability and pumpability
  • Package in water soluble bags for easy dispensing

Packaging

0.45Kg water soluble bag (24bags = 1box)

Colour

Pale buff powder

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Conforms to the requirements of BS 8443
Product Information

Chemical Base

Anionic Surfactant

Shelf Life

12 months from date of production if stored properly in undamaged unopened, original sealed packaging.

Storage Conditions

Store in dry conditions at temperatures between +5°C and +25°C. Protect from direct sunlight and frost.

Density

~ 0.95 Kg/Litre

Total Chloride Ion Content

<0.1% w/w

Equivalent Sodium Oxide

<3.0% Na2O w/w

Application

Application Information

Compatibility

Sika® Lightcrete Powder may be combined with many other Sika products.
Important: Always conduct trials before combining products in specific mixes and contact our Technical Service Department for information and advice about any specific combinations.

Dispensing

A wet mixing time, which is depending on the mixing conditions and mixer performance, of at least 60 seconds is recommended.
When added on site the truck mixer shall rotate its drums at maximum revolutions for at least 1 minute per m³ concrete and a minimum of 5 minutes to achieve a uniform mix.
Consumption

Recommended Dosage

1 Bag/m3 (0.45Kg)
Application steps

APPLICATION INSTRUCTIONS

Application Method / Tools
 

  • The standard rules of good concreting practice, concerning production and placing, are to be followed.
  • Laboratory trials shall be carried out before concreting on site, especially when using a new mix design or producing new concrete components.
  • Fresh concrete must be cured properly and curing applied as early as possible.
     

Cleaning of Tools
 

Clean all tools and application equipment with water immediately after use. Hardened / cured material can only be removed mechanically.
 

Notes on Application / Limitations
 

  • When using Sika® Lightcrete Powder a suitable mix design has to be taken into account and local material sources shall be trialled.
  • Sika® Lightcrete Powder shall not be added to dry cement.
  • Depending on the volume of the low density concrete or mortar placed, and placement method e.g. pumping, a volume change may occur.
  • Support from our Technical Service Department is recommended.

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