Osmocem SCK
Osmocem SCK has a rapid hardening even at low temperatures (even close to 0 ° C), excellent resistance to freeze-thaw cycles and a remarkable resistance to hydrostatic pressure, even in negative phase (counter-thrust). Thanks to the particular crystallising agent of which it is added, it also has a strong tendency to self-healing in case of cracks, as well as a very high cohesion to the support due to its penetrating characteristic (osmotic crystallising).
Fields of application
Concerning concrete counter-ground works, underground rooms and constructions, tunnels, hydraulic and infrastructural works and sewer systems, the Osmocem SCK compound is ideal for low-speed regularisations, shavings and coatings, provided they are sufficiently porous and absorbent and free from any waterproofing and / or water-repellent surface treatment, whether chemical (siloxanes, epoxies, polyurethanes, etc.) or natural (wax-up). Resistant to both positive and negative thrust impermeabilizations (counter-thrust).
Allowed supports
Concrete
Prefabricated concrete
Bricks
Mixed walls (bricks and stones)
Brickworks
Stone walls
Rock walls
Preparation of supports
The surfaces that are the subject of the operation should be healthy, compact and clean. Carefully remove dirt and any pollutant by removing the layers that are not tight, labile and not adequately resistant. Application surfaces should be abundantly and homogeneously moistened before application, while avoiding water stagnation on the surface.
Mode of use
To prepare the prepared mortar, add about 2/3 of the expected dough water to the mixer, gradually add the contents of the Osmocem SCK bag and finally the remaining water; Extend the mixing until a homogeneous, bulk-free mix is obtained. When mixing is completed, wait a few minutes before applying. It can be applied either manually (trowel and broom) or by specific pumping equipment, with spritz-concrete, even sprayed technique. In the case of tunnel and tunnel impermeabilizations, Osmocem SCK mortar can be used as a waterproofing layer between two containment spritz-concrete.
Application methods
Brick trowel
Finishing trowel
Shotcrete machine
Spatula
Technical specifications
Compressive strength after 28 days
UNI EN 1015-11
> 45 N/mm²
Resistance to severe chemical attacks
Group 10, 11, 12 UNI EN 13529
classe II
Water penetration under pressure (5 bar for 72 hours)
UNI EN 12390-8
≤ 10 mm
Flexural strength after 28 days
UNI EN 1015-11
> 6 N/mm²
Permeability to water vapor
Sd EN ISO 7783-1
CLASS I
Thermal compatibility
UNI EN 13687-1
2.18 MPa
Shore D hardness after 28 days of contact with sulfuric acid (pH 4.5)
82
Static elastic modulus
EN 13412
> 21000 N/mm²
Bonding force
Adesione al supporto UNI EN 1015-12
2.2 N/mm²
Adhesion to the support after 28 days of contact with sulfuric acid (pH 4.5)
UNI EN 13529
> 2.4 N/mm²
Water penetration after capillary absorption
UNI EN 1015-18
2.2 mm
Resistant to chemical agents
Skid resistance
UNI EN 13036-4
65.0
Consumption
Approximately 1.7 kg/m² of Osmocem SCK for each millimetre of thickness to be made.
Storage and conservation
Inadequate storage of the product may result in a loss of rheological performance.
Warnings
Do not apply in case of direct exposure to sunlight and excessive direct ventilation. Protect the fresh (applied) mortar during hardening/curing period from excessive and rapid loss of humidity and from sudden temperature change.
Do not apply on little or non-porous substrates or previously coated with water-repellent treatments in general, if not after appropriate roughening by bush hammers, sanders and equipment suitable for preparatory treatments of substrates, or after appropriate treatment with suitable polymeric primers.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.
