Product Data Sheet Show all documents

SikaPaver® SD Block

Water reducing/plasticising admixture

SikaPaver® SD Block is a liquid admixture which is formulated from modified Lignosulphonates.

  • Efficient dispersion and distribution of cement, additives and pigments
  • Improved movement of the concrete through the machine (faster mould filling)
  • Optimised compaction with shorter pressing time and increased throughput (shorter production cycle)
  • Increased “green” strength on immediate de-moulding
  • More economic concrete mix designs
  • Closer textured and more uniform surfaces
  • Consistent product quality due to a homogenous concrete mix
  • Increased density
  • Enhanced early and ultimate compressive and tensile strengths
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Product Data Sheet Show all documents

Usage

  • SikaPaver® SD Block is used for producing optimised semi-dry concrete with a very low moisture content. Semi-dry concrete production is generally used in the manufacture of machine-made concrete products associated with instant demoulding.
  • Block paving
  • Kerbstones
  • Edgings and other items for garden and landscape design
  • Building blocks and bricks
  • Concrete pipes
  • Manholes and drainage goods
 

Advantages

  • Efficient dispersion and distribution of cement, additives and pigments
  • Improved movement of the concrete through the machine (faster mould filling)
  • Optimised compaction with shorter pressing time and increased throughput (shorter production cycle)
  • Increased “green” strength on immediate de-moulding
  • More economic concrete mix designs
  • Closer textured and more uniform surfaces
  • Consistent product quality due to a homogenous concrete mix
  • Increased density
  • Enhanced early and ultimate compressive and tensile strengths

Packaging

1000 litre IBC and Bulk Tanker

Colour

Brown Liquid

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Conforms to the requirements of BS 8443 Semi-dry concrete admixtures
Product Information

Chemical Base

Modified Lignosulphonates

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

1.20 kg/L

Total Chloride Ion Content

<0.1 % (chloride free)

Equivalent Sodium Oxide

<0.6 % (alkali content)
Technical Information

Specific Advice

  • 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.

Application

Application Information

Dispensing

  • SikaPaver® SD Block is added to the gauging water or added with it into the concrete mixer.
  • To take advantage of the optimum water reduction, a wet mixing time, which is depending on the mixing conditions and mixer performance, of at least 60 seconds is recommended.
  • To avoid excess water in the concrete, the final dosage must begin only after 2/3 of the wet mixing time.

Compatibility

SikaPaver® SD Block 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.
Consumption

Recommended Dosage

0.3 – 0.5% by weight of cement

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