Repar Tix HG SB
Rheoplastic, thixotropic, structural, composite cement mortar, based on special cements and selected siliceous aggregates, reinforced with a balanced mixture of READYMESH polypropylene fibres and calcium metasilicate microfibres, added with specific agents and a high content of silica fume. After hardening, it provides very high performance in terms of intrinsic water tightness, resistance to washing and hydrolysing, mechanical strength, abrasion and cavitation, anti-carbonation, chemical-physical stability, resistance to harsh atmospheric agents and to leaching water. It has three-dimensional fibre-reinforcement, provides high hold; it is dimensionally stable (compensated shrinkage). The product can be supplied in mono-component or two-component version. The product, in the monocomponent version, is mixed with water (approx. 16% of the weight of the bag). In the two-component version, the product is mixed by adding the 4.5 kg of component B. The two-component version increases adhesion to the support and reduces free shrinkage to air, especially in the initial hardening phases and in particularly hot climates, without modifying the physical-mechanical characteristics of the end product.
Fields of application
Repairs and protective coatings of hydraulic works (pipelines, dams, tunnels etc.), marine structures and artefacts in critical situations: aggressive chemical-physical agents, leaching water, marine atmosphere, etc. Specific for shotcrete interventions in galleries, tunnels, rock walls, irrigation and hydraulic channels, piles and micropiles, diaphragms, etc.
Allowed supports
Concrete
Prefabricated concrete
Bricks
Mixed walls (bricks and stones)
Stone walls
Rock walls
Preparation of supports
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).
Mode of use
The use of pumping/spraying machines specifically designed to be used with fibre-reinforced structural mortars is recommended. For the spraying of structural mortars such as Repar Tix HG SB, an effective and sometimes prolonged mixing of the product, which must take place upstream of the pumping circuit, is always recommended. For this reason, the use of “plaster sprayers” with volumetric water dosage is not recommended.
Pour about 2/3 of the mixing water into the mixer, add Repar Tix HG SB and the remaining water; continue to mix until a homogeneous lump-free mixture is obtained. The mixing water should be about 16% of the weight of the bag. Addition of Bond HG to the mixing water, (approx. 0.5 litres per 25kg bag of product) in the single component version, allows further improvement in terms of adhesion, hold, impermeability, workability, modelling and deformation capacity. In the case of use of the product in the two-component version, pour component B (liquid) into the mixer, gradually adding component A (powder) and mixing until the lumps are completely eliminated. For high coating thicknesses, static requirements, monolithic requirements, etc., performed with Repar Tix HG SB, it is advisable to use suitable metal reinforcements (electro-welded mesh, cages, etc.), anchored to the support with Syntech Profix, GROUT MICROJ, Repar Tix G2.
Application methods
Brick trowel
Finishing trowel
Spatula
Sprayer
Technical specifications
Compressive strength after 1 day
UNI EN 12190
> 22 N/mm²
Compressive strength after 7 days
UNI EN 12190
> 40 N/mm²
Compressive strength after 28 days
UNI EN 12190
≥ 55 N/mm²
Compressive strength after 90 days
UNI EN 12190
> 60 N/mm²
Flexural strength at 1 day
UNI EN 196/1
5.0 N/mm²
Flexural strength after 7 days
UNI EN 196/1
> 7 N/mm²
Flexural strength after 28 days
UNI EN 196/1
≥ 8.5 N/mm²
Resistance to carbonatation
UNI EN 13295
0.5 mm
Skid resistance
UNI EN 13036-4
61.0 mm
Determination of thermal compatibility
UNI EN 13687-1
≥ 2 N/mm²
Static elastic modulus
EN 13142
26000 N/mm²
Reaction to fire
EN 13501-1
A1
Bonding force
UNI EN 1015-12
≥ 2 N/mm²
Capillary absorption
UNI EN 13057
0.30 kg•h^0.5/m²
Contrasted expansion with air curing for 1 day
UNI 8147
> 0.01 %
Chloride content
UNI EN 1015-17
< 0.01 %
Consumption
Approximately 18,5 kg/m² of Repar Tix HG SB for every centimetre of thickness to be implemented (approximately 1850 kg per cubic metre).
Packaging and dimensions
Bag 25 kg
Pallet: 50 x (Bag 25 kg)
Storage and conservation
Store the product in its original packing, in a fresh and dry environment, avoiding frost and direct sunlight.
Warnings
The general information, along with any instructions and recommendations for use of this product, including in this data sheet and eventually provided verbally or in writing, correspond to the present state of our scientific and practical knowledge.
Any technical and performance data reported is the result of laboratory tests conducted in a controlled environment and thus may be subject to modification in relation to the actual conditions of implementation.
Azichem Srl does not assume any liability arising from inadequate characteristics related to improper use of the product or connected to defects arising from factors or elements unrelated to the quality of the product, including improper storage.
Those wishing to utilise the product are required to determine prior to use whether or not the same is suitable for the intended use, assuming all consequent responsibility.
The technical and characteristic details contained in this data sheet shall be updated periodically. For consultation in real time, please visit the website: www.azichem.com. The date of revision is indicated in the space to the side. The current edition cancels out and replaces any previous version.
Please note that the user is required to read the latest Safety Data Sheet for this product, containing chemical-physical and toxicological data, risk phrases and other information regarding the safe transport, use and disposal of the product and its packaging. For consultation, please visit: www.azichem.com.
It is forbidden to dispose of the product and/or packaging in the environment.
