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SikaGrout-311, Expandable Mortar

Grouts
SIKA

Sika is a global leader in specialty chemicals for the construction and industrial sectors. The company develops and supplies innovative products and systems for bonding, sealing, damping, reinforcing, and protecting structures. With a strong focus on sustainability and performance, Sika serves a wide range of applications including concrete production, waterproofing, roofing, flooring, and structural strengthening.

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430.76 lei Tax Included
430.76 RON

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HIGH PERFORMANCE FLUID EXPANDABLE MORTAR WITH REDUCED SHRINKAGE

SikaGrout®-311 is a one-component, ready-to-mix, flowable, expandable, low-shrinkage cement-based mortar.

Use

SikaGrout®-311 is a mortar for castings in layer thicknesses between 10 mm (0.394 in) and 40 mm (1.57 in) Recommended for subcasting at:

  • Base plates for heavy equipment / foundations for machinery and equipment.
  • Support surfaces for precast concrete elements.
  • Filling cavities and voids.
  • Sealing around punctures and perforations.
  • Fixing prefabricated elements.
  • Recommended for structural reinforcements (Principle 4, Method 4.2 of SR EN 1504-9). Use of SikaGrout®-311 as anchoring product for reinforcing bars in accordance with SR EN 1504-6.
Advantages
  • Rapid development of resistances.
  • High ultimate resistances.
  • Compensated contractions (both in the plastic state and in the hardening phase).
  • Very good flow properties.
  • Due to its composition, it does not allow the development of segregations.
  • Easy to use (ready-to-mix powder).
  • Easy to mix, just add water.
  • Adjustable consistency.
  • Can be pumped or gravity poured.
  • It is not corrosive.
  • Fire classification A1.
pack

25 kg (55.1 lb) bags

Color

Grey powder

Typical technical data
APPROVALS / CERTIFICATIONS

- CE marking and Declaration of Performance in accordance with SR EN 1504-6 – Anchoring of steel reinforcement bars
- CE marking and Declaration of Performance in accordance with SR EN 1504-3 – Product for structural repairs for concrete elements for use in civil and industrial constructions

Chemical base

Cement, selected fillers and aggregates, special additives

Validity period

12 months from date of manufacture

Storage conditions

Store in dry conditions, in original, sealed and undamaged packaging

Density

Density of fresh mortar ~2.3 kg/l (~19.2 lb/gal)

Maximum grain

D max: 1 mm (0.0394 in)

Content of soluble chlorine ions

≤ 0.05% (EN 1015-17)

Compressive strength

1 day 7 days 28 days
~30 MPa (~4351 psi) ~45 MPa (~6527 psi) ~80 MPa (~11603 psi)

Modulus of elasticity to compression

~28 GPa (EN 13412)

Effective bearing surface

> 85%

Bending strength

1 day 28 days
~6 MPa (~870 psi) ~9 MPa (~1305 psi)

Tear resistance

≤ 0.6 mm (0.0236 in) at a force of 75 kN (EN1881)

Adhesion by pull test

≥ 2.0 MPa (290 psi) (EN1542)

Coefficient of thermal expansion

~12 x 10 -6 1 /K (EN 1770)

Reaction to fire

Euroclass A1 (EN 1504-6)

Application
Mixture ratio

3.2 - 3.4 liters of water per 1 bag of 25 kg (55.1 lb)

12.8% - 13.6% liters of water per unit weight of powder

Layer thickness

minimum 3 mm (0.118 in) / maximum 10 mm (0.394 in)

Ambient air temperature

+5°C (+41 °F) minimum / +30°C (+86 °F) maximum

Support temperature

+5°C (+41 °F) minimum / +30°C (+86 °F) maximum

Lifetime of the mixture

~40 minutes at 20°C (68 °F)

Consumption

It depends on the nature of the support layer and the thickness of the applied layer. Usually, the consumption is ~19 kg (~41.9 lb) of powder per 10 mm (0.394 in) thickness per m 2

Yield

For 1 bag of SikaGrout®-311 approximately 12.3 liters of mortar is obtained

shuffle

SikaGrout®-311 is mixed with an electric mixer at low speed (< 500 rpm) to avoid air entrainment. For best results always mix whole bags. Adăugați apă în proporția corectă într-un vas de amestec. While mixing, gradually add the powder. Blend for at least 3 minutes to achieve desired consistency.

APPLICATION

Excess water will be removed from the substrate, for example with a clean sponge, until the surface has a wet-matt appearance without shine (dry saturated surface appearance). The pores and any small cavities of the substrate will not contain water. Wait 5 minutes after mixing for air entrained by mixing to be removed. Pour the mortar into the already prepared space, making sure there is enough pressure for the product to flow continuously. Make sure the air in the mortar can escape easily. To make the most of the mortar's capacity to increase its volume, put the mortar into work as quickly as possible (within 15 minutes max.).

STRENGTHENING TREATMENT

Keep the mortar surface exposed as little as possible. Protect the fresh material from premature drying using known methods such as: wet geotextile membrane, polyethylene film, jute fabric, anti-evaporation products, etc.

CLEANING OF TOOLS

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