Product Data Sheet Safety Data Sheet Show all documents
SikaEmaco® S 466

SikaEmaco® S 466

(formerly 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 1" (25 mm) 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 Safety 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

55 lb bag and 3,300 lb bulk bag

Color

Gray powder

Product Details

Product Information

Chemical Base

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 40°F and 90°F. Protect from direct sunlight, heat and moisture.

Maximum Grain Size

3/8"

 
Technical Information

Compressive Strength

1 day

7 days

28 days

2,500 psi

6,000 psi

8,000 psi

Modulus of Elasticity in Compression

5.9 x 106 psi

Flexural Strength

1 day

7 days

28 days

-

-

770 psi

Tensile Strength

1 day

7 days

28 days

300 psi

550 psi

700 psi

Shrinkage

0.06%

Tensile Adhesion Strength

1 day

7 days

28 days

-

260 psi

340

Freeze Thaw De-Icing Salt Resistance

2; slight to moderate

Sulfate Resistance

< +0.05%

(High sulfate resistance)

Rapid Chloride Permeability

650 Coulombs

(Very low)

Slant Shear Strength

1 day

7 days

28 days

-

2,150 psi

3,300 psi

Freeze-Thaw Stability

97%

(RDM @ 300 cycles)

Application

Application Information

Mixing Ratio

0.4 - 0.6 gal per 55 lb bag

Layer Thickness

8" neat. For deeper applications, extend with appropriate ASTM C33-compliant aggregate. 

Ambient Air Temperature

40°F min. / 90 °F max.

Substrate Temperature

40°F min. / 90 °F max.

Pot Life

~90 min (73 °F)

Set Time

Initial set - 4 hours (ASTM C266)

Final Set - 6 hours

Fresh mortar density

142 lbs / ft3
Consumption

Coverage

0.43 cubic feet per 55 lb bag
Application steps

MIXING

1. Precondition material to 70±5 °F before mixing.
2. Add 0.40–0.60 gallons (1.5–2.3 L) of potable water for each 55 lb (25 kg) 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 4–6", approximately 0.6 gallons (2.3 L) per bag. Maximum recommended slump is 7". 
4. Mix until a homogeneous consistency is achieved, approximately 3–5 minutes. Do not mix longer than 5 minutes.
5. For applications greater than 8" (203 mm), add up to 25 lbs (11.3 kg) of 1/2–3/4" rounded, high-density, washed, SSD coarse aggregate for each 55 lbs (25 kg) of SikaEmaco® S 466. Contact Sika Technical Service for questions regarding appropriate aggregate for extension.
6. Aggregate must comply with the requirements of ASTM C 33.

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. A long open-time bonding agent such as Sikadur®-32 Hi-Mod LP may be used in place of a saturated substrate. In such a case, place the SikaEmaco® S 466 before the bonding agent becomes tack free.
6. Immediately after mixing, pump or pour the SikaEmaco® S 466 into the formed area.
7. 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 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 2,500 psi or a strength specified by the engineer.
2. Cure with an approved curing compound compliant with ASTM C 309 or preferably ASTM C 1315. If the repair area will receive a coating, wet curing is recommended.

 

CLEANING OF TOOLS

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

 

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