Product Data Sheet Show all documents

Sika® Aer-5

Air Entraining Concrete Admixture

Sika® Aer-5 is a liquid air entraining concrete admixture which is formulated from modified naturally occurring and synthetic surfactants.
It has been specially formulated to perform with concretes containing Pulverised Fuel Ash (PFA)
It meets the requirements of BS EN 934-2.

  • Provides consistent bubble size and spacing
  • Improved cohesion
  • Improved workability
  • Improved rheology
  • Reduced permeability
  • Reduced bleeding
  • Reduced laitance, enhancing the concrete’s resistance to frost attack
  • Reduced loss of air from fresh concrete
Product Data Sheet Show all documents

Usage

  • Sika® Aer-5 promotes the distribution of microscopic air bubbles throughout the cement matrix.
  • Applications that require high resistance to freeze/thawing cycles
  • Concrete that will be exposed to tidal conditions, splash zones and de icing salts
 

Advantages

  • Provides consistent bubble size and spacing
  • Improved cohesion
  • Improved workability
  • Improved rheology
  • Reduced permeability
  • Reduced bleeding
  • Reduced laitance, enhancing the concrete’s resistance to frost attack
  • Reduced loss of air from fresh concrete

Packaging

20 litre drum, 200 litre drum, 1000 litre IBC

Colour

Brown liquid

Product Details

Product Information

Chemical Base

Modified surfactants

Shelf Life

12 months from date of production if stored properly in undamaged containers

Storage Conditions

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

pH-Value

11.0 +/- 1.0

Total Chloride Ion Content

<0.10% w/w (chloride free)

Equivalent Sodium Oxide

<1.7% w/w
System information

Compatibility

Sika®Admixtures: Compatibility information available on request

Sika® Aer-5 should be dispensed into concrete separately from other admixtures.
Cements: All cement combinations
Pulverised Fuel Ash (PFA) is a waste product of modern electricity generation. Only use PFA complying with the relevant British Standard in structural concrete. Such material will vary within the parameters laid down in the standard. Eg fineness, carbon content and loss on ignition. As a result, the amount of AER 5 required may vary to maintain a specific air content.
Technical Information

Specific Advice

Freezing Point +1°C

Effect on Setting Negligible

Effect of Overdosing Increased air content leading to reduced densities and strength

Application

Application Information

Dispensing

Sika® Aer-5 should be dispensed through suitable calibrated dosing equipment.

DISPENSING

  • The standard rules of good concreting practice, concerning production as well as placing, are to be followed. Refer to relevant standards. Fresh concrete must be cured properly.
  • Sika® Aer-5 should not be added to dry cement.
  • Sika® Aer-5 should be added with the mixing water.
  • When using Sika® Aer-5a suitable mix design is required and local material sources should be evaluated.
  • Due to the significant number of constituent, mix design, manufacture and placing related factors outside Sika’s control, bubble spacing determinationnshould be carried out by the concrete producer to ensure compliance withnBS – EN 934-2. Bubble spacing should be completed using the specific concrete constituents/admixture combinations. For further information see CAA Admixture information sheet AIS 16 which is available at www.admixtures.org.uk
  • Support from our Technical Department is recommended.
Consumption

Recommended Dosage

0.1 -0.6% by weight of cement

Documents