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Sika® Intraplast® CFG

Cable Grout Admixture

Sika® Intraplast® CFG is a cable grout admixture in powder form. It introduces micro bubbles into the mix thereby promoting wet volume expansion and improves flow of the mixed grout without segregation.
Suitable for use in tropical and hot climatic conditions.

Sika® Intraplast® CFG has the following characteristics:
  • Improved flow
  • Increased cohesion
  • Nitrogen gas system
  • Volume expansion in wet state
  • Slight retardation to extend open time
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Usage

Sika® Intraplast® CFG is used to increase the cohesion in cementitious grouts (addition of sand is possible).
Sika® Intraplast® CFG can be used for grouting of:
  • Post tensioning cables
  • Pre-stressed cable ducts
  • Rock and concrete anchor bolts
 

Advantages

Sika® Intraplast® CFG has the following characteristics:
  • Improved flow
  • Increased cohesion
  • Nitrogen gas system
  • Volume expansion in wet state
  • Slight retardation to extend open time

Packaging

5 and 10 kg bags

Colour

Light grey powder

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

Follows the requirements of ASTM C 938, ASTM C 940 and BS EN 445.
Product Information

Composition

Blend of organic and inorganic chemicals

Shelf life

12 months

Storage conditions

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

Density

~2.06 kg/l (20 °C, w/p =0.34) (fresh mixed grout)

Bulk Density

~0.66 kg/l (20 °C)

Total Chloride Ion Content

Nil

(EN 934)

 
Technical Information

Indicative Performance of Mortar Mix

using OPC

Compressive strength (4 % Intraplast CFG bwoc)

w/p ratio

strength 1 day

strength 3 days

strength 28 days

0.34

≥ 35 N/mm2

≥ 50 N/mm2

≥ 70 N/mm2

0.35

≥ 30 N/mm2

≥  44 N/mm2

≥ 68 N/mm2

0.36≥  27 N/mm2≥  35 N/mm2≥  60 N/mm2

Flow (4 % Intraplast CFG bwoc)

w/p ratio

flow-cone test

0.34

~24 s (initial)

~29 s (0.5 h)

0.35

~22 s (initial)

~27 s (0.5 h)

0.36

~19 s (initial)

~24 s (0.5 h)

Expansion (w/p = 0.34) (4 % Intraplast CFG bwoc)

~0.12%

(ASTM C940)

Bleeding (w/p = 0.34) (4 % Intraplast CFG bwoc)

Nil                                  

(ASTM C940)

Trial mixes must be performed to establish the exact dosage rate required.

Application

Application Information

Ambient Air Temperature

+5 °C min. / +40 °C max.

Substrate Temperature

+5 °C min. / +40 °C max.
Consumption

Recommended Dosage

4 - 5 % of Sika® Intraplast® CFG by weight of cement

w/p ratio = 0.34-0.36
Application steps

MIXING

The most effective mixing sequence for lump free, homogeneous grout has proven to be a batching sequence of: water, cement and finally the admixture.

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