Product Data Sheet Show all documents

Sikacrete®-105 Gunit HSF

HIGH STRENGTH, SILICA FUME BASED, FIBER REINFORCED, DRY SPRAY MORTAR FOR CONCRETE REPAIR

Sikacrete®-105 Gunit HSF is a one component, un-accelerated, cementitious, silica fume based dry spray mortar with fibers and high ultimate strength.
Suitable for use in hot and tropical climatic conditions.

Sikacrete®-105 Gunit HSF is a ready for use, one component material providing the following benefits:
  • Excellent workability
  • Can be troweled and screeded after application
  • High density
  • Good adhesion to the substrate
  • Limited rebound
  • High ultimate compressive strength
  • Sprayable
  • Fiber technology reduces shrinkage, cracking and improves toughness
Product Data Sheet Show all documents

Usage

Sikacrete®-105 Gunit HSF is typically used in spray applications such as:
  • Concrete repair work
  • Levelling of large areas
  • High strength mortar
 

Advantages

Sikacrete®-105 Gunit HSF is a ready for use, one component material providing the following benefits:
  • Excellent workability
  • Can be troweled and screeded after application
  • High density
  • Good adhesion to the substrate
  • Limited rebound
  • High ultimate compressive strength
  • Sprayable
  • Fiber technology reduces shrinkage, cracking and improves toughness

Packaging

25 kg and 40 kg bag

Colour

Grey

Product Details

Product Information

Composition

Cementitious mortar with different additives

Shelf life

12 months minimum from production date

Storage conditions

Store in dry area in unopened original packaging at temperatures between +5 °C and +35 °C. Protect from direct sunlight, heat and moisture.

Density

~2.2 kg/l (+20 °C) (fresh mortar)

Maximum Grain Size

~2.40 mm
Technical Information

Compressive Strength

w/p ratio

1 Day

7 Days

28 Days

= 0.14

≥ 30 N/mm2

≥ 50 N/mm2

≥ 70 N/mm2

Tensile Adhesion Strength

≥  1.5 N/mm2 (28d) (or substrate failure)

(EN 1881)

Application

Application Information

Layer Thickness

Min. 9 mm
Max. 50 mm per one single layer

Ambient Air Temperature

Min. +5 °C / Max. +40 °C

Substrate Temperature

Min. +5 °C / Max. +40 °C
Consumption

Consumption

~22 kg/m2 per 10 mm thickness.
This figure is theoretical and does not include for any additional material required due to surface porosity, surface profile, variations in level,
wastage, rebound, etc..

Consumption may vary due to the area to be sprayed (overhead or vertical) as well as the thickness of the applied material.
Application steps

APPLICATION

Sikacrete®-105 Gunit HSF should be applied by using a suitable type of dry-spray concrete gun and a skilled nozzle man. Spray application can be started when the substrate has been suitably prepared, (wet down thoroughly the concrete surface, this is best done using the spray nozzle). Add the dry gunite mortar straight into the hopper of the concrete gun; the required water is added at the nozzle and adjusted by the operator.
As soon as the final coat has been sprayed, the dry spray mortar can be leveled. Any areas where the coverage is found to be inadequate must be re-sprayed in proper manner.

Don't use any rebound material for further application.

 

CURING TREATMENT

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

CLEANING

Uncured mortar should be removed from tools with water. To clean dry-spray cement guns, simply blowout with compressed air. Once cured, the mortar can only be removed mechanically.

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