Product Data Sheet Show all documents

SikaControl®-777

Robust 2-in-1 High Performance, Water-reducing and Waterproofing Concrete / Mortar Admixture

SikaControl®-777 is an innovative liquid admixture designed specifically to allow superior workability in concrete / mortar mixes with reduced water and also achieve high resistance to water ingress. It is based on a specially formulated polymers and compatible with all types of cement and binders (like fly ash, ground granulated slag, silica fume, metakaolin, etc).

  • Liquid – Easy to use.
  • Low dosage – Economical.
  • Water-reducing admixture - Improves workability, cohesion, pumpability and reduces segregation.
  • Improved surface finish.
  • Improved compressive strengths
  • Waterproofing admixture - Provides resistance to water penetration either under hydrostatic pressure or capillary absorption.
  • Increased durability.
Product Data Sheet Show all documents

Usage

SikaControl®-777 can be used in all types of concrete and mortar that is used in all types of residential, commercial and infrastructural construction. Additionally, it can be used in concrete applications constantly or intermittently in contact with water such as sea walls, tunnels, basements, structural and pre-cast concrete in exposed super-structures.
SikaControl®-777 is used as a dual action admixture combining both the waterproofing cum plasticizing effect for cement concrete, mortars and plasters.  

Advantages

  • Liquid – Easy to use.
  • Low dosage – Economical.
  • Water-reducing admixture - Improves workability, cohesion, pumpability and reduces segregation.
  • Improved surface finish.
  • Improved compressive strengths
  • Waterproofing admixture - Provides resistance to water penetration either under hydrostatic pressure or capillary absorption.
  • Increased durability.

Packaging

SikaControl®-777 is supplied in 5litre, 20litre& 220 kg drums or bulk.

Colour

Dark brown liquid

Product Details

Sustainability / Certifications / Approvals

CERTIFICATES AND TEST REPORTS

  • IS:2645-2003
  • IS:9103-1999
  • ASTM C494: Types A & D
Product Information

Shelf life

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

Storage conditions

SikaControl®-777 must be stored where temperatures do not drop below +5°C. If product has frozen, thaw at +5°C or above and completely reconstitute using mild mechanical agitation. Do not use pressurized air for agitation. Store under cover, out of direct sunlight and protect from extremes of temperature.
Failure to comply with the recommended storage conditions may result in premature deterioration of the product or packaging.

pH-Value

≥ 6

Total chloride ion content

<0.2%

Specific gravity

1.065 ± 0.02 at 25°C

Application

Application Information

Compatibility

SikaControl®-777 is compatible with most admixtures used in the production of quality concrete including normal, other mid-range and high-range water-reducing admixtures, air entrainers, accelerators, retarders, extended set control admixtures, corrosion inhibitors, and shrinkage reducers. SikaControl®-777 is also compatible with slag and pozzolans such as fly ash and silica fume.
Consumption

Recommended dosage

As a guide, a dosage range of 100 ml to 200 ml per 50kg bag of cementitious material is recommended.
Optimum dosage of SikaControl®-777 should be determined with trial mixes. Higher dosages may be required when cer-tain combinations of materials and conditions are present or water reduction in excess of 15% is required. Because of variations in concrete materials, job site conditions, and/or applications, dosages outside of the recommended range may be required.
Points to remember when producing waterproof concrete

  • Ensure water / cement ratio is within the range of 0.40 to 0.60.
  • Keep water content as low as possible.
  • Place concrete quickly and compact it well.
  • Ensure complete curing with a  Sika® Antisol® curing compound.

Effects of Over Dosage
A severe over-dosage of SikaControl®-777 shall result in some of the followings:

  • Extension of initial and final set
  • Increase in air entrainment
  • Bleed/segregation of mix, quick loss of workability
  • Increased plastic shrinkage

A slight overdosing may not adversely affect the ultimate strength of the concrete and can achieve higher strengths than normal concrete, provided it is properly compacted and cured. Due allowance should be made for the effect of fluid concrete pressure on form work, and stripping times should be monitored.
Application steps

APPLICATION

SikaControl®-777 is a ready-to-use liquid which is dispensed into the concrete together with the mixing water. The plasticising effect and water reduction are higher if the admixture is added to the damp concrete after 50 to 70% of the mixing water has been added. The addition of SikaControl®-777 to dry aggregate or cement is not recommended.

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