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SikaRep® MC-80

CEMENTITIOUS, HIGH STRENGTH, NON-SHRINK, PRECISION GROUT

SikaRep® MC-80 is a cementitious, pre-bagged, free flowing, one component, non-shrink precision grout with high early and ultimate strength. Suitable for use in hot and tropical climatic conditions.

SikaRep® MC-80 is an easy to use precision grout requiring only the addition of water. It offers the following benifical purposes:
  • Easy to mix
  • Very good flow characteristics
  • Adjustable consistency
  • Moderate heat of hydration
  • Shrinkage compensated
  • High final strength
  • Non-flammable
  • Non-corrosive
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Usage

SikaRep® MC-80 precision grout is used for grouting various applications such as:
  • Machine foundations
  • Columns in precast construction
  • Concrete anchors
  • Cavities, gaps, recesses
  • Base plates
  • Bridge bearing
  • Structural concrete repairs
 

Advantages

SikaRep® MC-80 is an easy to use precision grout requiring only the addition of water. It offers the following benifical purposes:
  • Easy to mix
  • Very good flow characteristics
  • Adjustable consistency
  • Moderate heat of hydration
  • Shrinkage compensated
  • High final strength
  • Non-flammable
  • Non-corrosive

Packaging

25 kg bag

Colour

Grey powder

Product Details

Product Information

Composition

Portland cement, selected fillers and aggregates, special additives

Shelf life

12 months minimum from date of production

Storage conditions

Store in original unopened packaging in a cool and dry condition between +5 °C and +35 °C. Protect from direct sunlight, heat and moisture.

Maximum Grain Size

~6 mm
Technical Information

Compressive Strength

(25 °C)

1 Day

7 Days

28 Days

w/p = 0.14 (3.5 L water / 25 kg)

~40 N/mm2

~65 N/mm2

~80 N/mm2

Tensile Adhesion Strength

≥ 1.5 N/mm2 (or concrete failure)

(EN 1881)

Application

Application Information

Mixing Ratio

Consistency

L water per 25 kg bag

Water / Powder Ratio

Flowable

3.5 - 4.0

0.14 - 0.16

Fresh Mortar Density

~2.4 kg/l (+25 °C)

Layer Thickness

Min. 25 mm per pour

Max. 200 mm per pour.

Ambient Air Temperature

+5 °C min. / +35 °C max.

Substrate Temperature

+5 °C min. / +35 °C max.

Pot Life

~60 min (25 °C)
Consumption

Yield

~12 L / 25 kg bag
Application steps

MIXING

Add water according to the desired consistency into a clean mixing vessel before slowly adding the SikaRep® MC-80 powder. SikaRep® MC-80 is best mixed in a forced action mixer, for 2 to 3 minutes or until the mix is free of lumps, not longer than 5 minutes. Slow speed drill (maximum 500 rpm) can be also used for mixing. Normal tumble type concrete mixers are not suitable. Do not mix more grout than can be placed within 15 to 20 minutes. Do not add extra water or other ingredients. Mix only full bags for the best result.

 

APPLICATION

Before pouring let the mixed grout stand for approximately 5 minutes after mixing to allow entrapped air to escape. Pour into the prepared area such that the grout has the shortest distance to travel. Ensure that air displaced by the grout is allowed to escape. When carrying out the base plate grouting, ensure a sufficient head of pressure to keep the mortar flowing. All exposed areas of the mortar surface should be kept as small as possible.

CURING TREATMENT

Treat exposed surfaces with Antisol®-WB curing compound or use other approved curing methods such as polyethylene sheeting or wet hessian. Do not commence fogging until final set has been reached.

CLEANING OF EQUIPMENT

Clean equipment and mixer immediately after application with water. Hardened material can only be removed mechanically.

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