Sakret BF Concrete Mix with Antifreeze Additives -10ºC, C25, 25kg

Sakret BF concrete / mortar with antifreeze additives -10ºC - Designed for the production and repair of concrete and reinforced concrete structures, working at temperatures up to -10°C. Suitable for heated floors. Excellent mechanical and climatic resistance, does not contain asbestos. High resistance in aggressive environments. Water and frost resistant. Concrete class C25.

Consumption: 80 kg/m² (if layer thickness is 40mm)

Application

• The base or formwork must not be frozen
• The base must be firm, durable and free of cracks
• Clean the base from less durable and/or detachable layers
• Scrape particularly dense and/or smooth bases
• Prime highly absorbent surfaces with SAKRET BG primer or SAKRET UG primer (diluted in a ratio of 1:3)
• Prime particularly smooth concrete surfaces with SAKRET QG primer
• Mix SAKRET BF in a clean container with cold water (use warm water in winter conditions) until a homogeneous mass without lumps is formed
• Observe all SAKRET BF preparation conditions indicated on the packaging
• After maturing time (~3 minutes), mix again
• Use non-absorbent or weakly absorbent formwork for concreting
• Provide sufficient reinforcement cover in reinforced concrete structures
• Observe deformation joint intervals for large horizontal structures
• Treat formwork with formwork oil
• Pour concrete into formwork evenly and compact
• Apply mortar in the required layer thickness, compact, level and smooth
• Do not fill expansion joints with concrete!
• The temperature of the concrete mix at the time of concreting must not be lower than +80C
• Immediately after completion of the work, protect the structures with a waterproofing material and then with a thermal insulation material, such as polyethylene film and mineral wool boards
• The temperature of any base or formwork must be such that the concrete does not freeze before reaching the critical or calculated temperature, with a minimum of +5°C
• Use mixes with a class no lower than M5
• Clean all bricks and blocks from snow and ice before masonry
• It is recommended to perform thermal calculations for the concrete structure (concrete curing time, required thermal insulation properties, concrete pouring temperature)
• At temperatures above +5°C, antifreeze additives act as accelerators of hardening
• Technical data refers to a temperature of +20°C and 50% relative humidity. Lower temperature increases, higher temperature decreases the specified values
• Protect the mortar during the hardening phase from sunlight, drafts and excessively high temperatures (>30°C)
• Protect fresh mortar from rain and excessively rapid drying
• Once the mortar has started to set, do not add water anymore!
• Immediately after preparing the mortar, rinse the containers and tools with water
• Hardened mortar can only be removed mechanically
• Contains cement, reacts alkaline
• Protect the skin and eyes, follow the technical instructions. If the mortar gets into the eyes, rinse with plenty of water and, if necessary, seek medical attention
• Protect the packaging from the effects of weather, store on wooden pallets, in a cool and dry place, immediately cover any opened packaging

Technical data