PRINCIPLE NO PRINCIPLE DEFINITION METHODS BASED ON THE PRINCIPLE SIKA PRODUCTS

CONCRETE REPCONCRETE REPAIR EURAIR EUROPEAN STOPEAN STANDANDARDS 1504-9 SERIESARDS 1504-9 SERIESPrinciples and Methods RPrinciples and Methods Relaelated to Defted to Defects in Concrects in Concrete &ete & RReinfeinfororcement Corcement Corrrosionosion

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Principle 1 (PI) Protection Against Ingress 1.1 Impregnation Sikafloor Curehard 241.2 Surface coating with and without crack Sikagard 680S, Sikagard 550W,

Reducing or preventing the ingress bridging ability Sikagard ElastoColor 675W, SikaColor 671W,of adverse agents, eg water, other Sikagard AntiGraffiti System, SikaTop Seal 107liquids, vapour, gas, chemicals and 1.3 Locally bandaged cracks Sikadur Combiflex Systembiological agents 1.4 Filling Cracks Sikadur 52 (<.5mm), Sikadur 32 (>0.5mm),

Sikadur 31 (>5.0mm)1.5 Transferring cracks into joints Sikaflex AT range1.6 Erecting external panels SikaTack Panel System1.7 Applying membranes Sikafloor 400N, Sikafloor 350 Elastic, Sikafloor 261

Principle 2 (MC) Moisture Control 2.1 Hydrophobic impregnation Sikagard 700S Aquastop, Sikagard 702W Aquaphobe2.2 Surface coating Sikagard 680S, Sikagard 550W, Sikagard 545W

Adjusting and maintaining the Elastofil, Sikagard ElastoColor 675W, SikaColor 671W,moisture content in the concrete Sikagard AntiGraffiti System, SikaTop Seal 107within a specified range of values 2.3 Sheltering or overcladding SikaTack Panel System

2.4 Electrochemical treatment System N/A

Principle 3 (CR) Concrete Restoration 3.1 Applying mortar by hand Sika MonoTop 612, Sika MonoTop 6153.2 Recasting with concrete Sika Armorex Armorcrete

Restoring the original concrete of an 3.3 Spraying concrete or mortar Sika MonoTop 612, SikaCem 133 Guniteelement of the structure to the 3.4 Replacing elements Sika Armorex Armorcreteoriginally specified shape and function

Restoring the concrete structure byreplacing part of it

Principle 4 (SS) Structural Strengthening 4.1 Adding or replacing embedded or external reinforcing steel bars System N/A

Increasing or restoring the structural 4.2 Installing bonded rebars in preformed or drilled Sika AnchorFix 1, Sika AnchorFix 2, Sikadur 42, load bearing capacity of an element holes in the concrete Sikadur 33of the concrete structure 4.3 Plate bonding Sika CarboDur Plate Bonding System

4.3a Structural fabrics SikaWrap System4.4 Adding mortar or concrete Sika MonoTop 612, Sika MonoTop 6154.5 Injecting cracks, voids or interstices Sikadur 52 (<.5mm), Sikadur 32 (>0.5mm)4.6 Filling cracks, voids or interstices Sikadur 52 (<.5mm), Sikadur 32 (>0.5mm)4.7 Prestressing - (post tensioning) Sika CarboDur System

Principle 5 (PR) Physical Resistance 5.1 Overlays or coatings • Horizontal - Sikafloor Systems (depends on requirements)• Vertical - Sikagard Systems (as 1.2 above)

Increasing resistance to physical 5.2 Impregnation Sikafloor Curehard 24or mechanical attack

Principle 6 (RC) Resistance to Chemicals 6.1 Overlays or coatings Sikagard 62, Sikagard 63N, Sikafloor 390, Sikafloor 381ASSikafloor 390AS

Increasing resistance of the concrete 6.2 Impregnation Sikafloor Curehard 24surface to deteriorations by chemical attack

Principle 7 (RP) Preserving or Restoring Passivity 7.1 Increasing cover to reinforcement with Sika MonoTop 612, 615, Sika Armorex Armorcrete, additional cementitious mortar or concrete SikaCem 133 Gunite

Creating chemical conditions in which 7.2 Replacing contaminated or carbonated Sika MonoTop 612, 615, Sika Armorex Armorcrete, the surface of the steel reinforcement is concrete SikaCem 133 Gunitemaintained in or is returned to a passive 7.3 Electrochemical realkalisation of carbonated Sika MonoTop 612, 615, Sika Armorex Armorcrete, condition concrete* SikaCem 133 Gunite

7.4 Realkalisation of carbonated concrete by Sika MonoTop 612, 615, Sika Armorex Armorcrete, diffusion SikaCem 133 Gunite

7.5 Electrochemical chloride extraction Sika MonoTop 612, 615, Sika Armorex Armorcrete,SikaCem 133 Gunite

Principle 8 (IR) Increasing Resistivity 8.1 Limiting moisture content by surface treatments, Sikagard Protective Coatings (as 1.2 above)coating or sheltering Sikafloor Deck Membranes, Sikafloor 261, 350 and 400N

Increasing the electrical resistivity Sikagard Hydrophobic Impregnations (as 2.1 above)of the concrete SikaTack Panel Cladding system

Principle 9 (CC) Cathodic Control 9.1 Limiting oxygen content (at the cathode) by Sikagard Protective Coatings (as 1.2 above)saturation or surface coating Sikafloor Deck Membranes, Sikafloor 261, 350 and 400N

Creating conditions in which potentiallycathodic areas of reinforcement areunable to drive an anodic reaction

Principle 10 (CP) Cathodic Protection 10.1 Applying electrical potential Sika MonoTop 612, SikaCem 133 Gunite CPOverlays with mesh

Polarising the steel reinforcementcathodically so as to reduce the rate of anodic reaction

Principle 11 (CA) Control of Anodic Areas 11.1 Painting reinforcement with coatings containing Sika Armatec 110, Sika MonoTop 610 active pigments Reinforcement Coatings

Creating conditions in which potentially 11.2 Painting reinforcement with barrier coatings Icosit 6630anodic areas of reinforcement are 11.3 Applying inhibitors to the concrete Sika FerroGard 903 (also Cathodic control)unable to take part in the corrosion reaction

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