Product Data Sheet Show all documents

Sikadur®-42+ HE Cold Climate

High-performance three-part epoxy grout for cold climates

Sikadur®-42+ HE Cold Climate is a three-part, high-performance, moisture-tolerant epoxy grout which develops high early strength. It is suitable for many static or dynamic precision grouting applications. It has a layer thickness of 10 mm to 100 mm and an application temperature range of +5 °C to +30 °C.

  • Ready-to-mix, pre-batched units.
  • Good flowability.
  • Tolerant to substrates with high moisture contents.
  • Good mechanical resistance.
  • Very low shrinkage.
  • Low coefficient of thermal expansion.
  • Good creep resistance.
  • Good resistance to vibration.
  • High reactivity for low temperature application (+5 °C) and fast strength gain.
  • Impermeable to most liquids and water vapour.
Product Data Sheet Show all documents

Usage

The Product is used for high-strength grouting and fixing of the following elements:
  • Starter bars
  • Anchors
  • Tie rods
  • Fasteners
  • Crash barrier posts
  • Fence and railing posts
The Product is used for precision under-grouting and bedding of the following elements:
  • Machine bases, base plates for light and heavy machinery including heavy-impact and vibratory machinery, reciprocating engines, compressors, pumps and presses
  • Bridge bearings
  The Product is used for repairing the following concrete elements:
  • Spalled concrete structures
  • Industrial floor slabs
  • Hole and void filling
  • Runways
  • Hardstandings
  • Car park decks
The Product is used for both interior and exterior applications.

Advantages

  • Ready-to-mix, pre-batched units.
  • Good flowability.
  • Tolerant to substrates with high moisture contents.
  • Good mechanical resistance.
  • Very low shrinkage.
  • Low coefficient of thermal expansion.
  • Good creep resistance.
  • Good resistance to vibration.
  • High reactivity for low temperature application (+5 °C) and fast strength gain.
  • Impermeable to most liquids and water vapour.

Packaging

Pre-batched Pack (Parts A+B+C)

20.4 kg

Refer to the current price list for available packaging variations.

Colour

Grey

Product Details

Product Information

Chemical Base

Epoxy resin and selected fillers and aggregates

Shelf Life

24 months from date of production

 

Storage Conditions

The Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C. Always refer to packaging.

Refer to the current Safety Data Sheet for information on safe handling and storage.

Density

Parts A+B+C mixed

~2,300 kg/m3
Technical Information

Effective Bearing Area

>85 %

(ASTM C1339)

Compressive Strength

Curing Time

+5 oC Curing Temperature

+15 oC Curing Temperature

+23 oC Curing Temperature

1 Day

~15 N/mm2

~73 N/mm2

~89 N/mm2

3 Days

~78 N/mm2

~82 N/mm2

~98 N/mm2

7 Days~91 N/mm2~101 N/mm2~105 N/mm2
28 Days~92 N/mm2~105 N/mm2~110 N/mm2

Modulus of Elasticity in Compression

~21,000 N/mm2

(EN 196-1)

Flexural Strength

~30 N/mm2

(ISO 178)

~27 N/mm2

(ASTM C580)

Flexural E-Modulus

~18,000 N/mm2

(ASTM C580)

Tensile Strength

~15 N/mm2

(EN ISO 527-2)

~12 N/mm2

Tensile adhesion strength

Slant shear >19 N/mm2 (concrete failure)

(ASTM C882)

8.5 N/mm2 (on steel)

4 N/mm2 (concrete failure)

(EN 1542)

Creep

0.98 % at 4.14 N/mm2 (600 psi) / 31 500 N (+60 °C)

0.81 % at 2.76 N/mm2 (400 psi) / 21 000 N (+60 °C)

(ASTM C1181)

Elongation at break

0.1 %

(EN ISO 527-2)

Heat deflection temperature

Cured for 7 days at +23 °C

+53 °C

Shrinkage

0.18 %

(DIN 52450)

Coefficient of Thermal Expansion

-30 °C to 0 °C

2.01 × 10–5 1/K

0°C to +30 °C

2.38 × 10–5 1/K

+30 °C to +60 °C

2.05 × 10–5 1/K

Service Temperature

Maximum

+60° C

Minimum

-40° C

Water Absorption

Coefficient W, cured 7 days

0.018 %

Application

Application Information

Mixing Ratio

Part A : B : C

4 : 1 : 32.5 (by weight)

Liquid (A+B) : Solid (C)

1 : 6.5 (by weight)

Depending on the project, the amount of Part C can be increased as follows:

Part A : B : C

4 : 1 : 37.5 (by weight)

Liquid (A+B) : Solid (C)

1 : 7.5 (by weight)

For further information contact Sika® Technical Services.

Layer Thickness

Maximum

100 mm

Minimum

10 mm

Peak Exotherm

Tested at + 23 °C

+38 °C

Flowability

160 mm (23 °C after 5 min) Flow channel

(EN 13395-2)

270 mm (23 °C) Slump test

(EN 13395-1)

6/15 seconds

(ASTM C1339)

Product Temperature

Maximum

+30 °C

Minimum

+5 °C

Ambient Air Temperature

Maximum

+30 °C

Minimum

+5 °C

Dew Point

Beware of condensation. Substrate temperature during application must be at least +3 °C above dew point.

Substrate Temperature

Maximum

+30 °C

Minimum

+5 °C

Substrate Moisture Content

Substrate

Test method

Moisture content

Cementitious substrates

Calcium carbide method (CM-method)

≤ 4 %

No rising moisture (ASTM D4263, polyethylene sheet)

Pot Life

Pot life begins when all parts have been mixed. It is shorter at high temperatures and longer at low temperatures. The greater the quantity mixed, the shorter the pot life.

To obtain longer workability at high temperatures, the mixed adhesive may be divided into smaller quantities. Alternatively, if the application temperature is above +20 °C, chill parts A+B before mixing.

Temperature

Time

+5 °C

~100 minutes

+15 °C

~80 minutes

+23 °C

~60 minutes
Application steps

SUBSTRATE QUALITY

CONCRETE

Concrete must be at least 28 days old.

Substrates must be sound, clean, dry or matt damp, but free of standing water. Substrates must be free of contaminants such as ice, dirt, oil, grease, coatings, laitance, efflorescence, surface treatments and loose friable material.

STEEL

Surfaces must be sound, clean, dry and free of contaminants such as dirt, oil, grease, coatings and loose friable material.

 

SUBSTRATE PREPARATION

IMPORTANT

Reduced adhesion due to surface contamination

Surface contaminants such as dust and loose material, including the contaminants generated during substrate preparation, can reduce the Product's performance.

  1. Before applying the Product, clean thoroughly all substrate surfaces using vacuum or dust removal equipment.

CONCRETE

Suitable techniques for substrate preparation include the following:

  • Abrasive blast cleaning

  • High-pressure water blasting

  • Needle gunning

  • Scabbling

  • Bush hammering

  • Grinding

  1. Prepare the substrate mechanically using a suitable technique.
  2. Clean any pockets or holes for structural fixings to remove any debris.

The substrate has an open-textured, gripping surface profile.

STEEL

Suitable techniques for substrate preparation include the following:

  • Abrasive blast cleaning

  • High-pressure water-blasting

  • Grinding

  1. Prepare the substrate mechanically using a suitable technique.
  2. The substrate has a bright metal finish with a surface profile to satisfy the necessary tensile adhesion strength requirement.

SHUTTER FORMWORK

Pre-conditions:

Where formwork is to be used, all formwork must be of adequate strength, treated with release agent and sealed to prevent leakage.

  1. Prepare the formwork to maintain a minimum 100 mm grout head to assist with placement.

Note: A grout box equipped with an inclined trough attached to the formwork will also improve the grout flow and reduce air voids.

MIXING

IMPORTANT

Poor workability and unfavourable handling time due to wrong mixing

  1. When using multiple units during application, do not mix the following unit until the previous unit has been used.

PRE-BATCHED UNITS

  1. IMPORTANT Mix full units only. Prior to mixing all parts, mix Part A (resin) briefly using a mixing spindle attached to a slow speed electric mixer (maximum 300 rpm).
  2. Add Part A to Part B (hardener) and mix Parts A+B continuously for at least 3 minutes until a uniformly coloured, smooth consistency mix has been achieved.
  3. While mixing Parts A + B, gradually add Part C (aggregate).
  4. IMPORTANT Do not mix excessivley. Mix until a uniform mix is achieved.

BULK PACKAGING

  1. Prior to mixing all parts, mix Part A (resin) and Part B (hardener) briefly using a mixing spindle attached to a slow speed electric mixer (maximum 300 rpm).
  2. Add the parts in the correct proportions into a suitable mixing container.
  3. Mix Parts A+B continuously for at least 3 minutes until a uniformly coloured smooth consistency mix has been achieved.
  4. While mixing Parts A + B, gradually add the correct proportion of Part C (aggregate).
  5. IMPORTANT Do not mix excessivley. Mix until a uniform mix is achieved.

APPLICATION

IMPORTANT

Damage due to excessive long-term load

Sikadur® resins are formulated to have low creep under long-term load. However, due to the creep behaviour of all polymer materials under load, the long-term structural design load must account for creep.

  1. Ensure that the long-term structural design load is lower than ¼ to ⅕ of the short-term failure load.
  2. Consult a suitably qualified, competent structural engineer for calculating the admissible load for the specific application.

GROUTING

  1. IMPORTANT Maintain a 100 mm grout head to avoid trapping air. Pour the mixed grout into the prepared formwork ensuring continuous grout flow during the complete grouting operation.
  2. Where formwork has been used for grouting base plates and machine bases, place sufficient epoxy grout in the formwork to rise slightly above the underside (~3 mm) of the grouted base.

FLOWABLE REPAIR

  1. Immediately after mixing, pour the mixed material into the formwork or repair area. Ensure a continuous flow.

ADDITIONAL LAYERS

  1. Apply additional layers in successive pours once each layer has cooled and hardened sufficiently.

Note: The last layer of a multiple pour must be at least 50 mm.

CLEANING OF TOOLS

Clean all tools and application equipment with Sika® Thinner C immediately after use. Hardened material can only be removed mechanically.

 

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