Additive Kratasol AF brand D - a complex product, based on an ionomer aliphatic superplasticizer, a complex of antifreeze additives. The additive does not contain sulfates.
The additive allows to carry out concrete works in winter at temperatures up to -25 С. In this case, the use of an additive of an aliphatic superplasticizer in the formulation allows to increase the workability of concrete considerably and to promote the formation of a uniform structure of concrete. According to consumer properties, the additive Kratasol AF brand D complies with the requirements of GOST 24211, which is required for superplasticizing, water-reducing, antifreeze
Additive Kratasol AF D grade is intended for the production of ready-mixed concrete and mortar 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.
Recommendations for use
Kratasol AF brand D is introduced into the concrete mixture together with 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 mortar, it is necessary to ensure sufficient mixing time for a uniform distribution of the additive in the concrete mix. It is advisable to comply with the requirements for work in winter: heating aggregates before use, to prepare the concrete mix, use heated water, while the recommended temperature of the concrete mixture at the outlet of the mixer + 15-5 - + 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 necessary to provide measures to achieve not less than 20% of the 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, periodic homogenization of the additive solution by bubbling with compressed air or stirring is necessary. 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 AF D grade is a non-toxic and non-flammable product. The additive is transported by any mode of transport, in accordance with the regulations in force.
Store in an environment that prevents the entry of foreign objects, atmospheric precipitation. In the case of the freezing of an aqueous solution of the additive after thawing and homogenization of Kratasol AF, grade D 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 the additive are presented on the basis of the available practical experience with proper storage and use . For further information, please contact the technical support service of PJSC "Pigment" , direction - "Additives in building materials" .
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