Product Data Sheet Show all documents

Sika® UW Compound-100

Stabilizer for underwater concrete and grouting mortar according to EVU 1990

Sika® UW Compound-100 is used to prevent separation of fresh concrete in direct contact with water. This underwater concrete can therefore fall freely and unprotected through the water.

  • Improved internal cohesion
  • More homogeneous mixture
  • Lower internal friction between cement and aggregates
Sika® UW Compound-100
Safety Data Sheet
Product Data Sheet Show all documents

Usage

  • Constructive underwater concrete
  • Free falling through water concrete
  • Concrete for bank protection of inland waterways and rivers
  • Concreting of building floor slabs in groundwater

Advantages

Sika® UW Compound-100 causes:
  • Improvement of the absorption of water on the solid parts of the concrete or mortar
  • Lower internal friction between cement and aggregates



    This causes in mortar and concrete:
  • More homogeneous mixture
  • Improved internal cohesion
  • No segregation during contact with water
    (high erosion resistance)
  • Good flowability and self-levelling
  • Good sealing without additional compaction effort

Packaging

Sack: 25 kg, 1000 kg shrink-wrapped on Euro deposit pallet; 1000 kg bigbag

Colour

Powder / Light grey

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

Complies with EN 934-2 Table 4 (stabilizer).

Contains only components according to
DIN EN 934-1:2008, Appendix A.1.

Utilised in concrete with alkali-sensitive aggregate according to Alkali Guidelines Part 1, 4.3.2, paragraph (2) or (3).

Fulfils the requirements of the DVGW work sheets W270 and W347.

Can be utilised in all EC countries.
Product Information

Composition

Cellulose ether

Shelf life

Minimum of 1 year shelf life in sealed containers.

Storage conditions

Protect against frost, strong sunlight and contamination.

Total Chloride Ion Content

≤ 0.10 %

Equivalent Sodium Oxide

≤ 0.5 %

Application

Application Information

Compatibility

Never mix Sika® UW Compound-100 just with water.

Add in with the aggregate or cement. Alternatively mix in as the last.

The mixing time should be extended for at least 45 seconds in case of compulsory mixers, and for at least 90 seconds in case of free-fall mixers.

Never utilise high-speed mixer because they reduce the effect or cancel it out.

The addition amount is dependent on the composition of the output mixture and the desired erosion resistance:

With standing water                           3 - 6 kg/m³ concrete

With running water                             6 - 10 kg/m³ concrete

With free falling through water        7 - 9 kg/m³ concrete

For grouting mortar applies:

Installation in dry                                 2 - 3 kg/m³ concrete

Installation under water                      3 - 6 kg/m³ concrete

Dispensing

An initial test according to DIN EN 206-1/DIN 1045-2 is required before use.
Consumption

Recommended Dosage

0.2 - 1.8 % of the cement mass

Documents