Additive Kratasol-Cryo-M is a complex product that includes low-sulfate polymethylene (3-naphthalene-sulfonates of various molecular weight and antifreeze components.) Thanks to a rational combination of superplasticizing and antifreeze components, Kratasol-Cryo-M prevents the concrete from freezing during transport until the moment of packing, Strength at negative temperatures down to -25 ° С.
Kratasol-Krio-M additive complies with the requirements of GOST 24211 for consumer properties. It is required for superplasticizing, water-reducing, antifreeze additives.
Additive Kratasol-Krio-M is designed for the production of ready-mixed concrete and mortars in winter conditions in order to prevent their freezing during transportation until the moment of laying, to ensure a normative set of strength at negative temperatures. In this case, the additive improves the workability of concrete mixes, reduces the water-cement ratio. The additive allows to transport concrete mixture and to conduct concreting at temperatures of ambient air to -25 ° С. Kratasol-Krio-M can be used in the manufacture of prefabricated reinforced concrete products and structures.
Recommendations for use
Kratasol-Cryo-M is introduced into the concrete mixture together with the mixing water, preferably with the last third of the mixing water. It is not recommended to add the additive to the dry mix. After adding the additive to the solution, it is necessary to provide sufficient mixing time for a uniform distribution of the additive in the concrete mix. It is recommended to follow the requirements for work in winter: heating the aggregates before use, for preparing the concrete mixture, use heated water, while the recommended temperature of the concrete mixture at the outlet of the mixer is +15 ͦ + 25 ° C; Cleaning of the surface of the installation from snow and ice; In case of snowfall, use special shelters.
To obtain the necessary strength characteristics of concrete, it is recommended that the requirements of SNIP 3.03.01 for the care of concrete in winter concreting are met. It is recommended to provide measures to achieve at least 20% strength from the design by the time the concrete is cooled to the temperature at which the dosage of the additive is calculated.
The dosage of the additive is selected in each specific case by carrying out tests in laboratory and production conditions. The dosage of the additive depends on:
In the case of long-term storage or use of large amounts of additives, it is necessary to periodically homogenize the additive solution by bubbling with compressed air or stirring. Dosage should be carried out with an error of ± 2%.
Recommended dosage range depending on ambient temperature
The range of recommended dosages can be extended. The optimum dosage of the additive is established during laboratory selection. In this case, the selection of the concrete composition is made in accordance with GOST 27006 by any method that meets the design requirements for concrete mixtures.
In liquid form, the additive is supplied in bulk in auto- and railway tanks, as well as in plastic containers of various capacities. Kratasol-Cryo-M is a non-toxic and non-flammable product. The additive is transported by any mode of transport, in accordance with the regulations in force.
Keep in an environment that prevents the entry of foreign objects, atmospheric precipitation. In the case of the freezing of the aqueous solution of the additive after thawing and homogenization, Kratasol-Cryo-M can be used in accordance with the recommendations. Observance of the recommended conditions allows storing the additive within 12 months from the date of manufacture.
It is recommended to use protective gloves when working with the additive. If the product gets on your skin, wash it off with soap and water. Avoid contact with eyes. In case of contact with eyes, rinse immediately with plenty of water and consult a doctor if necessary. Dispose of the additive according to local regulations, do not pour into the soil, water, sewerage.
Recommendations for the use of additives are presented on the basis of the available practical experience with proper storage and use . For more information, please contact the technical support service of PJSC "Pigment" , direction - "Additives in building materials" .
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