Product Data Sheet Show all documents

SikaEmaco® S 466

(former MEmaco S 466)

Pumpable, free flowing, shrinkage compensated micro-concrete for grouting and repair

SikaEmaco® S 466 is a flowable, shrinkage-compensated repair concrete. It is designed for large volume repairs, including structural elements in applications from 25 mm (1 in) to full depth. It has a unique formulation that provides excellent bond, resistance to sulfates and chlorides, high electrical resistivity, low permeability, high-compressive strengths, and protection from corrosion.

SikaEmaco® S 466 is an easy to use precision microconcrete requiring only the addition of water. It offers the following beneficial properties:    
  • Very low chloride permeability and an integral corrosion inhibitor protects reinforcing steel
  • Easy to mix
  • Low-dusting for added worker comfort and safety
  • Only requires the addition of potable water
  • High compressive strength
  • Excellent freeze/thaw resistance for durability in cold, wet environments
  • Abrasion resistant for repairs requiring protection from vehicular traffic
  • Flowability makes it ideal for placement by pumping or pouring into congested locations
  • Shrinkage compensated, minimizing cracking from drying shrinkage reducing stress at the bond line
Product Data Sheet Show all documents

Usage

SikaEmaco® S 466 precision micro-concrete is used for repair and grouting in various applications such as:
  • Interior and exterior
  • Large volume structural repairs
  • Columns in precast construction
  • Casting sections or members where the volumes required are too large for conventional grouts, and too small and inaccessible for normal concreting applications
  • Cavities, gaps and recesses
  • Re-profiling of damaged concrete members and reprofiling of pile tops using formwork for both pouring and pumping techniques
 

Advantages

SikaEmaco® S 466 is an easy to use precision microconcrete requiring only the addition of water. It offers the following beneficial properties:    
  • Very low chloride permeability and an integral corrosion inhibitor protects reinforcing steel
  • Easy to mix
  • Low-dusting for added worker comfort and safety
  • Only requires the addition of potable water
  • High compressive strength
  • Excellent freeze/thaw resistance for durability in cold, wet environments
  • Abrasion resistant for repairs requiring protection from vehicular traffic
  • Flowability makes it ideal for placement by pumping or pouring into congested locations
  • Shrinkage compensated, minimizing cracking from drying shrinkage reducing stress at the bond line

Packaging

25 kg (55 lb) bag

Colour

Grey powder

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

  • Ministère des Transports et de la Mobilité Durable du Québec (MTMD) approved
  • Meets MTO specification for patching materials
Product Information

Composition / Manufacturing

Portland cement, selected fillers and aggregates, special additives

Shelf Life

12 months minimum from date of production. 3 months for bulk bags.

Storage Conditions

Store in original unopened packaging in a cool and dry condition between

4 °C (40 °F) and 32 °C (90 °F). Protect from direct sunlight, heat and moisture.

Maximum Grain Size

9.5 mm (3/8 in)
Technical Information

Compressive Strength

1 day

17.2 MPa (2500 psi)

7 days

41.4 MPa (6000 psi)

28 days

55.2 MPa (8000 psi)

Modulus of Elasticity in Compression

40.7 GPa (5.9 x 106 psi)

(ASTM C469)

Tensile Strength in Flexure

28 days

5.3 MPa (770 psi)

Shrinkage

0.06 %*

(ASTM C157)

*76 x 76 x 254 mm (3 x 3 x 10 in) prisms, air cured

Pull-Off Strength

7 days1.8 MPa (260 psi)
28 days2.3 MPa (340 psi)

Freeze Thaw De-Icing Salt Resistance

2; slight to moderate50 cycles

Sulfate Resistance

< 0.05 %*High sulfate resistance

*length change @ 6 months

Chloride Ion Diffusion Resistance

650 Coulombs

Very low

Shear Adhesion Strength

7 days

14.8 MPa (2150 psi)

28 days

22.8 MPa (3300 psi)

Freeze thaw resistance

97 %RDM @ 300 cycles

Splitting Tensile Strength

1 day2.1 MPa (300 psi)
7 days3.8 MPa (550 psi)
28 days4.8 MPa (700 psi)

Application

Application Information

Mixing Ratio

1.5 - 2.3 L (0.40 - 0.60 US gal.) per 25 kg (55 lb) bag

Layer Thickness

200 mm (8 in) neat. For deeper applications, extend with appropriate ASTM C33-compliant aggregate. 

Ambient Air Temperature

4 °C (40 °F) min. - 32 °C (90 °F) max

Substrate Temperature

4 °C (40 °F) min. - 32 °C (90 °F) max

Pot Life

~ 90 min @ 23 °C (73 °F)

Initial Set Time

4 hours(ASTM C266)

Final Set Time

6 hours(ASTM C266)

Fresh Mortar Density

2275 kg/m3 (142 lb/ft3)

 
Consumption

Yield

12.2 L (0.43 ft3) per 25 kg (55 lb) bag
Application steps

MIXING

  1. Precondition material to 21 ± 3 °C (70 ± 5 °F) before mixing.
  2. Add 1.5–2.3 L (0.40–0.60 US gal.) of potable water for each 25 kg (55 lb) bag of SikaEmaco® S 466. Mix mechanically using a slow speed drill (400–600 rpm) and a Jiffy paddle or mix in an appropriately sized mortar mixer.
  3. Pour approximately 90 % of the mix water into the mixing container, then charge the mixer with the SikaEmaco® S 466. Add the remaining mix water as required to obtain desired consistency. Add enough water to the mixing container to obtain a slump of 100–150 mm (4–6 in), approximately 2.3 L (0.60 US gal.) per bag. Maximum recommended slump is 180 mm (7 in).
  4. Mix until a homogeneous consistency is achieved, approximately 3–5 minutes. Do not mix longer than 5 minutes.
  5. For applications greater than 200 mm (8 in), add up to 11.3 kg (25 lb) of 13–19 mm (1/2–3/4 in) rounded, high-density, washed, SSD coarse aggregate for each 25 kg (55 lb) of SikaEmaco® S 466. Contact Sika® Technical Service for questions regarding appropriate aggregate for extension.
  6. Aggregate must comply with the requirements of ASTM C33.

APPLICATION

FORMED APPLICATIONS

  

  1. Build forms in accordance with ACI 347R. Keep the unrestrained surface area of the repair to a minimum.
  2. Saturate the prepared concrete substrate by filling the prepared formwork with clean water 8 hours before placement.
  3. Immediately before the placement of SikaEmaco® S 466, completely drain this water and seal the drainage outlets, leaving the substrate saturated surface-dry (SSD) with no ponded water remaining.
  4. In jobsite circumstances where the formwork cannot be filled with water to achieve an SSD surface, the prepared concrete substrates must be thoroughly hosed down with clean water to achieve an equal level of saturation. Apply the repair material with sufficient pressure to ensure intimate contact with the substrate.
  5. Immediately after mixing, pump or pour the SikaEmaco® S 466 into the formed area.
  6. Follow ACI 305 and 306 for hot or cold weather guidelines.

 

HORIZONTAL APPLICATIONS

  

  1. After removing all standing water, thoroughly scrub a thin layer of bond coat into the saturated surface with a stiff-bristled broom or brush. Do not dilute the bond coat with water. Do not apply more of this bond coat than can be covered with mortar before the bond coat dries. Do not retemper the bond coat.
  2. Immediately place the repair mortar from one side of the prepared area to the other. Work the material firmly into the bottom and sides of the patch to ensure good bond. Level the SikaEmaco® S 466 and screed it to the elevation of the existing concrete. Apply the appropriate finish.
  3. Finish the completed repair, as required, taking care not to overwork the surface.
  4. A maximum of 90 minutes should be allowed to mix, place, and finish SikaEmaco® S 466 at 21 °C (70 °F). Follow ACI 305 and 306 for hot or cold weather.

CURING TREATMENT

  1. Leave the formwork in place until the compressive strength reaches 17.2 MPa (2500 psi) or a strength specified by the engineer.
  2. Cure with an approved curing compound compliant with ASTM C309 or preferably ASTM C1315. If the repair area will receive a coating, wet curing is recommended.

CLEAN UP

Clean tools and equipment with clean water immediately after use. Cured material must be removed mechanically.

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