Product Data Sheet Show all documents

Sikadur®-31 SBA S-04 IN

Segmental bridge adhesive for use at +10 °C to +20 °C

Sikadur®-31 SBA S-04 IN is a 2-part epoxy based moisture tolerant, thixotropic, solvent-free, structural adhesive especially formulated for segmental bridge construction. It has good squeezability, high initial strength gain, hardens without shrinkage and complies with many international and national standards such as FIP, ASTM etc. Application temperature range +10 °C to +20 °C.

  • Meets and / or exceeds International and National Standards (such as FIP, BS, ASTM etc.)
  • Lubricates the surfaces and makes positioning of the shear keys easier
  • High strength and high modulus of elasticity
  • High initial and ultimate strengths
  • Impermeable to liquids and water vapour
  • Minimal water absorption
  • Suitable for dry and damp concrete surfaces (moisture tolerant)
  • Hardening is not affected by humidity
  • Thixotropic: non-sag in vertical and overhead applications
  • Solvent free
  • Hardens without shrinkage
  • Different coloured components (for mixing control)
  • No primer needed
Product Data Sheet Show all documents

Usage

Sikadur®-31 SBA S-04 IN is used as segmental bridge adhesive for use on substrate temperatures of +10 °C to +20 °C  

Advantages

  • Meets and / or exceeds International and National Standards (such as FIP, BS, ASTM etc.)
  • Lubricates the surfaces and makes positioning of the shear keys easier
  • High strength and high modulus of elasticity
  • High initial and ultimate strengths
  • Impermeable to liquids and water vapour
  • Minimal water absorption
  • Suitable for dry and damp concrete surfaces (moisture tolerant)
  • Hardening is not affected by humidity
  • Thixotropic: non-sag in vertical and overhead applications
  • Solvent free
  • Hardens without shrinkage
  • Different coloured components (for mixing control)
  • No primer needed

Packaging

Part A+B prebatched unit

6 kg x 2 sets

Part A

4.50 kg container

Part B

1.50 kg container

Colour

Part A+B mixedConcrete grey
Part AOff white
Part BBlack

Product Details

Product Information

Chemical Base

Epoxy resin and selected fillers

Shelf Life

12 months from date of production

Storage Conditions

The product must be stored properly in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +40 °C. Protect from direct sunshine.

Density

Part A+B mixed : 1.8 ± 0.1 kg/L (at +30 °C)

Product Declaration

According to FIP / fib 9/2 Proposal for a standard for acceptance tests and verification of epoxy bonding agents for segmental construction
System information

System Structure

A full range of Sikadur®-31 SBA segmental bridge epoxy adhesives covering application temperatures between +10 °C and +50 °C is available:

  

Application temperature

Segmental bridge epoxy adhesive

+20 °C to +50 °CSikadur®-31 SBA S-09 IN
+25 °C to +45 °CSikadur®-31 SBA S-02 IN
+10 °C to +20 °CSikadur®-31 SBA S-04 IN
Technical Information

Compressive strength

Curing time

Curing temperature

Compressive strength

24 hours

+10 °C≥ 60 N/mm2

7 days

+10 °C≥ 75 N/mm2

Modulus of elasticity in compression

~11000 N/mm2 (Instantaneous modulus)

(FIP 5.13)

Tensile adhesion strength

Bond strength on wet concrete

100 % concrete failure (24 hours / +10 °C)

  

Tensile bending on wet concrete

100 % concrete failure (24 hours / +10 °C)

Shear Strength

≥ 12 N/mm2 (7 days / +10 °C) (slant shear cylinder test)

(FIP 5.15)

Shrinkage

Hardens without shrinkage

  

≤ 0.4 % (7 days / +20 °C)

(FIP 5.7)

Creep

Deferred modulus in compression (1 hour)

~12000 N/mm2

Thermal Resistance

Meets the requirements of FIP 5.10, DIN 53458 and ASTM D648

  

≥ +50 °C (7 days / +20 °C)

(FIP 5.10)

Heat Deflection Temperature

≥ +50 °C (7 days / +20 °C)

(ASTM D648)

(DIN 53458)

Water Absorption

Water absorption

≤ 0.5 %

Solvability in water

≤ 0.1 %

Application

Application Information

Mixing ratio

Part A : Part B = 3 : 1 (by weight)

Layer thickness

30 mm max.

Sag Flow

< 10 mm (+20 °C)

(FIP 5.3)

  

 No sag flow at min. thickness of 3 mm (+20 °C)

(ASTM D2730)

Squeezability

~6000 mm2 (15 kg load / +10 °C)

(FIP 5.4)

Product temperature

Sikadur®-31 SBA S-04 IN must be at a temperature of between +10 °C and +20 °C for application.

Ambient air temperature

+10 °C min. / +20 °C max.

 

Dew Point

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

Substrate temperature

+10 °C min. / +20 °C max.

Substrate Moisture Content

When applied to matt moisture concrete, brush the adhesive well into substrate.

Pot life

~20 minutes (100 g mass at +20 °C)

(FIP 5.1)

The potlife starts when the resin and hardener are mixed. It is shorter at high temperatures and longer at low temperatures. The larger the quantity mixed, the shorter the potlife.

Open Time

~60 minutes (100 g mass at +20° C)

(FIP 5.2)

Curing Rate

Curing time

Curing temperature

Compressive strength
12 hours

+10 °C

≥ 20 N/mm2

24 hours+10 °C

≥ 40 N/mm2

7 days+10 °C≥ 75 N/mm2
Application steps

SUBSTRATE QUALITY

Concrete must be at least 28 days old and have an open textured profile. Any cement laitance must be removed.

Concrete surfaces must be clean, dry or matt damp, free from standing water, ice, dirt, oil, grease, laitance, surface treatments, all loose particles and any other surface contaminants that could affect adhesion of the adhesive.

SUBSTRATE PREPARATION

Concrete surfaces must be prepared mechanically using suitable abrasive blast cleaning or other suitable approved equipment to achieve an open textured, laitance free, gripping surface profile. All dust and loose material must be completely removed from surfaces before application of the adhesive.

MIXING

Prior to mixing all parts, mix part A (resin) briefly using a mixing spindle attached to a slow speed electric drill (max. 300 rpm). Add part B (hardener) to part A and mix parts A+B continuously for at least 3 minutes until a uniformly coloured smooth consistency mix has been achieved. To ensure thorough mixing pour materials into a clean container and mix again for approximately 1 minute. Over mixing must be avoided to minimise air entrainment. Mix full units only. Mixing time for A+B = 4 minutes. Mix only the quantity which can be used within its pot life.

CLEANING OF TOOLS

Clean all tools and application equipment with Sika® Colma Cleaner immediately after use. Hardened / cured material can only be mechanically removed.

 

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