Sika - SikaGrout-4 R expansive cementitious mortar

Self-leveling, expansive, ready-to-use cement mortar for grouting, anchoring, concrete repair. Granularity 0/4 mm. It is characterized by an accelerated increase in strength and a slight expansion in the liquid-plastic phase.

Features

• self-spilling
• frost-resistant
• resistant to vibrations and impacts after setting
• non-corrosive to steel, non-toxic, non-flammable
• it expands by gas evolution while still in the liquid-plastic phase
• the ability to regulate the consistency
• easy to use and mix - only water added
• fast strength development, high final strength
• in accordance with the rules of structural repairs for anchoring steel bars in reinforcing bars in accordance with PN-EN 1504-6
• meets the requirements for a repair mortar of class R4 in accordance with PN-EN 1504-3
• reaction to fire class A1

Application

• grouts for machines, poles
• embedding anchors, bars, railings and other steel structures in concrete
• pouring joints element in prefabricated elements. Filling defects and joints in concrete on horizontal surfaces
• suitable for repair work (principle 3, method 3.2 of PN-EN 1504-9); repair of peeled or damaged concrete in buildings, bridges and other reinforced concrete structures
• suitable for structural reinforcement (principle 4, method 4.2 of PN-EN 1504-9); increasing the load-bearing capacity of the concrete structure by mounting the bar in the reinforcement holes in the openings
• suitable for structural reinforcement (principle 4, method 4.4 of PN-EN 1504-9); increasing the load-bearing capacity of the concrete structure by adding a mortar layer
• suitable for maintaining or restoring passivity (principle 7, methods 7.1 and 7.2 of EN 1504-9); increased cover of the reinforcement and replacement of damaged or carbonated concrete

Technical data

• chemical base cement, selected aggregate and special additives
• appearance / color gray powder
• density ~ 2.35 kg / dm ³ (fresh mortar density), ~ 2.34 kg / dm ³ (mortar density after 28 days)
• maximum grain size D _max 4 mm
• content of soluble ions in chloride 0.026% (according to PN-EN 1015-17)
• compressive strength: after 1 day ~ 45 MPa (according to PN-EN 196-1); after 28 days ~ 100 MPa (according to PN-EN 12190)
• modulus of elasticity in compression ~ 41.0 GPa (according to PN-EN 13412)
• flexural strength: after 1 day ~ 8.2 MPa; after 28 days ~ 12.7 MPa - according to PN-EN 196-1
• pullout adhesion: ~ 0.37 mm with a load of 75 kN (dry concrete); ~ 0.26 mm with a load of 75 kN (wet concrete) - according to PN-EN 1881
• peel strength ~ 3.4 MPa (according to PN-EN 1542)
• thermal compatibility part 1 freezing-thawing ~ 2.8 MPa (according to PN-EN 13687-1)
• reaction to fire class A1
• capillary absorption ~ 0.05 kg ∙ m ² ∙ h ^-0.5 (according to PN-EN 13057)
• carbonation resistance meets ~ 0 mm (according to PN-EN 14295)
• mixing ratio use a maximum of 12% of mixing water (3.0 liters of water for 1 bag of 25 kg)
• consumption depending on the roughness of the substrate and the thickness of the layer; approx. 18 kg of dry mortar per 1 m per 1 cm of layer thickness
• efficiency - one 25 kg bag gives an average of 12.5-13.5 dm ^{3 of} fresh mortar
• layer thickness from 1.5 cm to 5 cm (when used as a ground or anchor mortar); locally, the maximum thickness of the mortar layer may be 5-10 cm
• ambient and substrate temperature when applying from +5 C to +30 C
• storage conditions: store the product in a dry room, in closed and undamaged packages; protect from moisture; best to use within 6 months from the production date
• packaging 25 kg bags