Product Data Sheet Safety Data Sheet Show all documents
SikaSet®-45

SikaSet®-45

VERY RAPID-SETTING CHEMICAL REPAIR MORTAR, OPEN TO FOOT TRAFFIC IN 45 MINUTES

SikaSet®-45 is a 1-component, very rapid-setting, early-strength gaining, magnesium phosphate-based patching and repair mortar for concrete.

  • Very rapid hardening as defined by ASTM C928
  • Freeze/thaw resistant
  • Easy to use; economical patching and labour saving material
  • No added chlorides
  • Not gypsum-based
  • High early-strength
  • Very fast-setting
  • Open to foot traffic in 45 minutes, to vehicle traffic in 1 hour at +23 °C (73 °F)
  • Easily applied to clean, sound substrates
  • Not a vapour barrier  
Product Data Sheet Safety Data Sheet Show all documents

Usage

  • Bridge deck and highway overlays and repairs
  • Concrete joint repairs
  • Structural repair to concrete parking structures, dams
  • Full depth patching repairs
  • Horizontal repairs of concrete and mortar
  • Formed wall and marine structure repairs

Advantages

  • Very rapid hardening as defined by ASTM C928
  • Freeze/thaw resistant
  • Easy to use; economical patching and labour saving material
  • No added chlorides
  • Not gypsum-based
  • High early-strength
  • Very fast-setting
  • Open to foot traffic in 45 minutes, to vehicle traffic in 1 hour at +23 °C (73 °F)
  • Easily applied to clean, sound substrates
  • Not a vapour barrier  

Packaging

22.7 kg (50 lb) bag

Colour

Powder / Concrete Grey

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

  • Approved by the Ministère des Transports du Québec (MTQ)
  • Approved by the Ontario Ministry of Transportation and is qualified by The Road Authority (TRA)
  • Product recognized by the British Columbia Ministry of Transportation (BC MoT)
  • Meets Alberta Transportation (AT B391) specification for patching materials (both LTH and HEH approved)    
Product Information

Shelf Life

12 months in original, unopened bag.

Storage Conditions

Store dry, ensuring that product is not exposed to rain, condensation or high humidity. For best results, condition product at temperatures between +18 °C and +29 °C (65 °F and 84 °F) before using.

Soluble Chloride Ion Content

Chloride Resistance

@13 mm depth = 0.04 %

Chloride Content

@25 mm depth = 0.02 %

Chloride Content (ASTM C1152) by mass of mortar  = 0.011 %
Technical Information

Compressive Strength

Mortar ASTM C109+3 °C (37.4 °F)*+23 °C (73 °F)

1 hour

-

39 MPa (5 656 psi)

3 hours

-

40 MPa (5 801 psi)

1 day

33 MPa (4 786 psi)

42 MPa (6 091 psi)

3 days44 MPa (6 381 psi)45 MPa (6 526 psi)
7 days50 MPa (7 250 psi)51 MPa (7 397 psi)
28 days61 MPa (8 887 psi)65 MPa (9 427 psi)

Shrinkage

60 days

No cracking

90 days

- 0.017 %

 

Water Absorption

6.8 % @ 14 days

(specification B391)

Alberta Transportation

Application

Application Information

Mixing Ratio

1.9 L (4 pints) of water per bag

Layer Thickness

10 – 50 mm

Ambient Air Temperature

Minimum: 0 °C / Maximum: +35 °C 

Substrate Temperature

Minimum: 0 °C / Maximum: +35 °C 

Initial Set Time

10 – 20 minutes

(ASTM C266)

(Modified)

Final Set Time

15 – 25 minutes

(ASTM C266)

(Modified)

Waiting Time / Overcoating

Approx. 15 minutes after adding powder to the water
Consumption

Yield

Approx. 11 L (0.39 ft3)
Approx. 16.4 L (0.58 ft3)* when extended with up to 13.6 kg (30 lb) of 10 mm (3/8 in) dry pea gravel
*Warning : Do not use limestone aggregate.
Application steps

MIXING

Water content is critical, use a maximum of 1.9 L (4 pints) of water per 22.7 kg (50 lb) bag of SikaSet®-45. Mechanically mix in an appropriately sized mortar mixer. Wet down tools and mixer to be used. Pour clean (potable) water into the mixer. Add aggregate, if extending the unit for deep patches. If aggregate is damp, lower the water proportion accordingly. Add the SikaSet®-45 powder to the mixer and mix for 1.5 to 2 minutes. Following this sequence will ensure consistent and uniform batches. SikaSet®-45 should be mixed, placed and finished within 10 minutes [+20 °C (68 °F)] from the time that the powder is added to the water.

Use neat material for patches from 13 to 38 mm (1/2 to 1 1/2 in) deep. For application greater than 38 mm (1 1/2 in) in depth, add up to 15 kg (33 lb) of 10 mm (3/8 in) coarse aggregate. The aggregate must be non-reactive (as per ASTM C1260, C227, and C289), clean, well graded, oven-dried, have low absorption, high density and comply with ASTM C33, size number 8 per table 2.

 
Note: The addition rate of 13.6 kg (30 lb) of coarse aggregate increases the unit yield to approx. 16.4 L (0.58 ft3).

APPLICATION

A scrub coat should be applied prior to placement of mortar. Apply a 3 mm (1/8 in) thick scrub coat of SikaSet®-45 into the substrate, filling all pores, voids and edges. Onto the fresh scrub coat, force the mortar against the edge of the repair area or onto the resurfacing site, working towards the centre and observing minimum and maximum layer thicknesses. After filling repair, screed off excess. Allow concrete to set to desired stiffness, then finish. To control setting times, cold water should be used in hot weather and hot water in cold weather.

CURING TREATMENT

SikaSet®-45 should air cure for proper curing, but should be protected from rapid moisture loss during first three (3) hours. To do so, a liquid curing compound or polyethylene can be used, as well for protecting fresh SikaSet®-45 from rain. Never wet cure SikaSet®-45.

CLEAN UP

Clean all tools and equipment immediately after use with water. Once hardened, material can only be removed manually or mechanically. 

 

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