Structural, rheoplastic, thixotropic cement mix with controlled shrinkage, with adequate super-pozzolanic filler additives, hold accelerators and glass micro-fibres. The mix is equipped with very fast hold, excellent workability and excellent adhesion on cement supports to re-build. The product was mainly designed for small/medium repairs and reconstructions in environments where the fastness of application is important, such as works on roads, ports and airports.
Products and systems for the protection and repair of concrete structures - Structural and non-structural repair (R4)
Density: 2.105 kg/dm³
Max. recommended thickness: 5 cm
Maximum diameter of aggregate: 0.7 mm
Mix with water: 16 - 18 %
Pot-life: 10 - 15 min
Shelf-life: 12 months
Adhesion to substrate
< 0.01 %
Compressive strength after 01 day
> 15 N/mm²
Compressive strength after 03 days
> 35 N/mm²
Compressive strength after 07 days
Compressive strength after 08 hours
> 7 N/mm²
Compressive strength after 28 days
> 45 N/mm²
Flexural strength after 28 days
> 8.5 N/mm²
Flexural strength at 01 day
> 3.5 N/mm²
Static elastic modulus
- Bag 25 kg
Approximately 19 kg/m² of REPAR TIX SPEEDY HP for every centimetre of thickness to be implemented (approximately 1900 kg per cubic metre).
Suitable for surface regulation and reconstruction works on missing sections and cavities, especially in works involving structural renovation of worn concrete. Volumetric reconstruction of concrete cover on structures in reinforced concrete or prefabricated ashlars.
Application surfaces should be clean, free of soiling, crumbling and non-adhering parts, dust, etc., conveniently saturated with water until they reach the condition "saturated with dry surface". An adequate roughening of the surfaces by scarifying, sandblasting etc. is always necessary in order to obtain the maximum adhesion values to the substrate. The optimal values are obtained with high pressure hydro-scarification. Bare the irons undergoing disruptive oxidation or deeply oxidized, removing the rust of the exposed irons (by sandblasting or abrasive brushes).
Pour about 2/3 of the mixing water into the mixer, add REPAR TIX SPEEDY HP and the remaining water; continue to mix until a homogeneous lump-free mixture is obtained. The mixing water should be about 16 - 18% of the weight of the bag.
Having finished mixing, immediately use the product for the works necessary, paying attention to its fast hardening. You are advised to use a little product at a time, only the quantity usable within 10 minutes after mixing (attention, the ambient temperature can also considerably affect the hold time of the product!).
- Brick trowel
- Prefabricated concrete
Do not apply in case of direct exposure to sunlight and/or excessive ventilation. Cure the protection and the prolonged moist hardening of exposed surfaces. Given the short setting time, it is recommended to prepare small amounts of product at a time, to avoid waste and scraps.
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