Product Data Sheet Safety Data Sheet Show all documents

Sika®-1+

Waterproofing Concrete Admixture for Concrete and Mortars -  Part of the Sika® Watertight Concrete Concept

Sika®-1+ is liquid waterproofing admixture used for permeability reduction in concrete and cementitious mortars. A concrete or mortar containing Sika®-1+ can achieve extremely enhanced properties regarding its water permeability and water tightness.

  • Reduces water permeability in concrete and cementitious mortars
Product Data Sheet Safety Data Sheet Show all documents

Usage

Sika®-1+ has been specially formulated for the production of watertight concrete and mortars. It also forms part of the Sika® Watertight Concrete Concept. Types of constructions where it can be used are:
  • Building construction, foundations and wherever waterproofed concrete is required
  • Reservoirs and dams
  • Underwater construction
  • Pools and ponds
For watertight cementitious mortars it can be used in:
  • Underground or above ground masonry structures
  • Waterproofing in concrete structures
  • Manufacturing of small cementitious parts with a high degree of water resistance and resistance to inclement weather
 

Advantages

  • Reduces water permeability in concrete and cementitious mortars

Packaging

20 litre pail

Colour

Liquid, pink

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Water resisting admixture, Table 9 according to ΕΝ934.02:2009+A1:2012, Declaration of Performance 14465848, and provided with the CE-mark.
Product Information

Chemical Base

Partially neutralised composition of amino alcohols

Shelf Life

12 months from date of production

Storage Conditions

Store properly in undamaged unopened, original sealed packaging, in dry conditions at temperatures between +5°C and +35°C. Protect from direct sunlight and frost.

Density

~ 1.02 kg/lt (at +200C)

pH-Value

8.0-10.0 (at +200C)

Total Chloride Ion Content

Free (EN 934.01)
Technical Information

Mortar Mix Design

  • For Sika® Watertight Concrete: Sika®-1+ has been designed for all concrete types. In general, adaptation of Sika’s suggestions for production of Watertight Concrete, which will have minimum 350 kg/m3 cement and maximum active W/C ratio = 0.45 is recommended. Depending on the specific demands of the mixture for each application, the incorporation of superplasticizer for achieving S3/S4 slump category must be evaluated (EN 206-1).

Application

Consumption

Recommended Dosage

Concrete:

Standard dosage = 5.5 litres/m³ or 1.5% by weight of cement

Mortar:

Add to gauging water at a rate of 1 part Sika®-1+ to 12 parts water. For wet sand increase dosage ratio to 1 : 9

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