Product Data Sheet Show all documents

SikaGrout®-318

Non-shrink, high strength, cementitious grout

SikaGrout®-318 is a ready to use, shrinkage compensated, non ferrous, high strength, self-levelling, bearing grout. Pre-mixed with selectively graded materials result in a dense homogeneous mix.

  • Good flowability
  • Good dimensional stability
  • Controlled expansion
  • Chlorides-free; will not rust, bleed, or harm metal on contact
  • High early compressive strength; allows earlier loading and minimizes costs
  • High early strength produces minimal downtime for maintenance and repairs
  • Non toxic, non corrosive
  • Ready and easy to use
  • Economical
Product Data Sheet Show all documents

Usage

SikaGrout®-318 is designed to counteract the normal shrinkage of mortar and concrete and to absorb and minimize effects of vibration on foundations. The high early strength property is suitable for work that requires early loads including machine bases structural columns, prestressed girders, bridge bearings, rail posts and seatings bolts etc.  

Advantages

  • Good flowability
  • Good dimensional stability
  • Controlled expansion
  • Chlorides-free; will not rust, bleed, or harm metal on contact
  • High early compressive strength; allows earlier loading and minimizes costs
  • High early strength produces minimal downtime for maintenance and repairs
  • Non toxic, non corrosive
  • Ready and easy to use
  • Economical

Packaging

25 kg bag

Colour

Powder / Concrete grey

Product Details

Product Information

Shelf life

Min. 6 months if stored properly in unopened, original packaging

Storage conditions

Dry, cool, shaded place

Density

~ 1.60 kg/l (bulk density of powder)
~ 2.20 kg/l (density of fresh mortar)
Technical Information

Compressive Strength

1 day

≥ 40 N/mm²

28 days≥ 70 N/mm²

(At 27 °C)

Expansion

> 0.1 %

At 3 hours

Application

Application Information

Mixing ratio

Water : SikaGrout® = 1 : 8 (parts by weight)
~ 3.125 litres of clean water per 25 kg bag

Layer Thickness

Min. gap: 25 mm

Max. gap: 80 mm

Substrate Temperature

+10 °C minimum / +40 °C maximum

Minimum application temperature is 10 °C. At temperature lower than 20 °C setting time and strength gain will be slower. Normal curing practice
should be observed for at least 3 days wherever mortar is exposed.
Consumption

Yield

1 bag yields approx. 13.10 litres of mortar

Approx. 77 bags required for 1 m3 (one) of mortar
Application steps

MIXING

Powder should be added to the pre-gauged water to suit the desired consistency.
Mix mechanically for at least 3 minutes with a low speed electric drill (max. 500 r.p.m.) with a disc agitator attached, until a smooth consistency is achieved.
Mixing equipment such as two arms, forced action basket/pan type mixer can also be used.

APPLICATION

Pour mortar after mixing. Ensure that air entrained into the grout is allowed to escape. When carrying out base plate grouting, ensure sufficient head of pressure is maintained to keep mortar flow uninterrupted. Make sure that necessary form work is firmly in place and watertight. To achieve optimum expansion result, apply mortar as quickly as possible (preferably within 15 minutes after mixing).
Grouting of machine beds
Pre-wet thoroughly, no standing water in bolt holes. If possible, grout anchor first, and the mortar bed in the second operation. Ensure continuous flow of mortar.
Grouting base plate
Prewetting for approx. 24 hours, no standing water. Maintain constant hydro-static pressure to continuous flow. Use steel rods or chain to make sure that all cavities are filled. Make sure that entrapped air can escape easily.
Grouting of large cavities / large volume
Please contact Sika Technical Service Department for further advice.

 

CURING TREATMENT

Keep visible, free mortar surface as small as possible and protect it from premature drying out by standard curing practice (keep moist, cover with wet hessian, use of curing compound e.g. Antisol® E).

CLEANING OF TOOLS

Clean all tools and equipment with water immediately after use.
Hardened mortar can only be removed mechanically.

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