Transcription
Fosroc Lokfix E77(supersedes Lokfix E75)High performance pure epoxy 3:1 resin cartridge system, for anchoring reinforcementand fixings into a variety of substrates. Waterproof, protecting the embedded fixing from corrosion and water penetration into the substrate. Extended gel times allow for more complex procedures Fire rated up to 2 hours* 24 month shelf life*consult test data for specific conditionsDescriptionLokfix E77 is a two-component Epoxy anchoring material,supplied in 3:1 ratio side-by-side cartridges with a staticmixer nozzle. When applied it sets and cures to firmly secure a variety of steel fixings into concrete and solid ma-UsesFor concrete (solid, porous and light) and solid masonry. Accredited* for use in dry, wet and flooded concrete substrates, internal and external exposure. Can be used with cracked concretesonry substrates.Other grades of Lokfix are also availableLokfix E35 Rapid curing resin anchor cartridge systembased on styrene free polyester for lightweight anchoring.Lokfix E55/E45 Rapid curing resin anchor cartridgesystem based on styrene free vinyl-ester for heavy / Fixing of post installed reinforcementmedium duty anchoring. Anchoring of threaded rod fixingsSpecification Clause Anchoring of internal threaded rod sleevesThe anchor grout shall be Fosroc Lokfix E77 cartridge sys- Can be applied to a wide variety of fixing and rebar sizestem. The Anchoring grout shall comply with EAD 33008700-0601, systems for post-installed rebar connections, and For horizontal, vertical and overhead applicationEAD 330499-01-0601 for anchoring fixings into cracked C1 and C2 seismic resistance*and un-cracked concrete.AdvantagesStandards Compliance High durability: Tested to achieve 100 year design life*Lokfix E77 complies with the following standards: High Bond strengths for heavyweight fixings or economi- European approval to EAD 330499-01-0601, anchoringin cracked and un-cracked concrete (which supersedescal design.ETAG 001 option 5) includes fire testing, (threaded rod No additional mixing equipment required Does not apply expansive force to the substrateonly) to 120 minutes and C1 & C2 seismic approval. European approval to EAD 330087-00-0601, for use inpost-installed rebar connections (supersedes EOTA Fixings can be spaced closer together than mechanicalTR 023).anchors Enables fixings closer to edges than mechanical anchors Émissions dans l’air intérieur : A Low VOC LEED compliant VOC Level Re-usable by replacing sealing cap product may be keptto the end of original shelf life. Tested with diamond drilled bore holes*Page 1
Fosroc Lokfix E77For optimal use the cartridge temperature should be between 5ºC to 40ºC. Note general storage conditions.**The stated curing time is for dry conditions. In wet/dampconditions, the curing time will double.Be aware that the substrate temperature can vary significantly from the ambient temperature.Chemical resistanceLokfix E77 has resistance to a wide variety of chemicals.Consult Fosroc technical department for specific data.Material PropertiesDesign CriteriaTable 1—Material PropertiesCompressive Strength (EN196-1) 110 MPaFlexural Strength (EN196-1) 60MPaE Modulus (ISO 527-2) 6000 MPaAxial Tensile Strength (ISO 527-2) 40Shore A Hardness (ISO 868) 90Shore D Hardness (ISO 868) 85Density 1.5kg/LTemporary service temp. ( 24h)-40 C to 72 CPermanent service temp. ( 24h)-40 C to 50 CWatertightness (EN12390-8)0mmElectrical resistance (IEC93)8 x1012 ΩmThermal Conductivity (EN993-15)0.50W/m.KAssistance and qualificationDesign of fixings and reinforcement must be undertaken bysuitably qualified personnel with understanding of the construction and use of the structure, the use of the fixing, aswell as being in compliance with local legislation.In applications where fixings or rebar must be designedand applied in compliance with the requirements of therelevant ETA and EAD, designers should consult the relevant Fosroc accreditation documents.Fosroc provides software which may be used to aid design,available at www.lokfix.com or through your local technicaloffice.Note tables 3, 4 and 5 suggestions for use and data provided has been selected based on following criteria: Compres-sive class C20/25 dry/wet, un-cracked concrete, hammerdrilled or compressed air drilled. Rebar class BSt 500,threaded rod 8.8 class. 50 year design life with long/shortTable 2 - Lokfix E77 Gel & Dry Curing TimesSubstrateterm service temps maximums of 25/ 40 C. Calculationsperformed to comply with EN1992-4 (2018).Gel Time**Dry Curing(mins)Time (hrs)0ºC90144 10 ºC6028For all other conditions including 100 year design life, in- 20 ºC3012fixings into cracked concrete, fixings subject to seismic 30 ºC129conditions and post installation of reinforcement refer to the 40ºC84Temp.All values in mm unless otherwise stated. Data provided does not form part of the EADcreased concrete strength, fixings into solid masonry types,relevant method statement, EAD document or use the design software www.lokfix.com, also available through yourlocal technical office.Page 2
Fosroc Lokfix E77Table 3 - Rebar Anchoring Setting Parameters – details belowRebar Anchor 0 Min. Edge DistanceCmin35404550506070707585180200Min. SpacingSmin405060707590120120130150180200Max. Embedment Depthhef,, max160200240280320400480500560640720800Min. Embedment Depthhef,, min60607075809096100112128144240Min. Part Thicknesshminhef 30mm 100mmMin. Drill DiameterD0, min101214182025303035404550Max. Drill DiameterD0, max121416182025323235404550hef 2d0Table 4 - Threaded Rod Anchoring Setting Parameters -details belowAnchor SizeM8M10M12M16M20M24M27M30M33M36M39M42M48 Min. Edge DistanceCmin3540455060657580165180195210240Min. SpacingSmin4050607595115125140165180195210240Max. Embedment Depth hef,ma160200240320400480540600660720780840960Min. Embedment Depthhef,mi606070809096108120132144156168192Min Part ThicknesshminDrill Diameterd0Max. Installation Torque Tinst.hef 2d0hef 30mm 0330360390460550Table 5 - Example Fixing loadsFixing 210250250Edge 270330345375510630630750750Tension load for Threaded rod (kN)13.820.027.0-32.751.971.3-92.6-Tension load for rebar 9404248hef,270270320350380380420480Edge .3-103.9-127.8-144.6--Embedment depthFixing diameterEmbedment depthTension load for Threaded rod (kN)Tension load for rebar (kN) Page 3 Note: Greater/lesserloads per fixing arepossible dependingon embedment depthand other factors.Consult Fosroc technical for advice.* Data provided doesnot form part of theEAD
Fosroc Lokfix E77Product InstallationFull details are available in the application method statement,Unscrew the fixing cap from the cartridge. Remove the plastic stopper.a copy of which may be obtained from your local FosrocScrew the static mixer nozzle onto the cartridge. Place thetechnical department.cartridge into the application gun.The following methodology is for installation into solid sub-Pull the trigger to extrude the Lokfix E77.strates such as reinforced concrete. For other substrates orImportant: extrude the initial material until the colour be-fixings please request a separate method statement.comes red and consistent. This typically takes two or threeHole Formation and Preparationfull squeezes. Discard material that is streaky in colour.Drill hole with percussive drill or compressed air drill ensuringInsert the nozzle to the back of the hole and pump the Lokfixsides of the concrete are rough. If using a hollow drill bitmaterial gently pulling back until the hole is ⅔ to ¾ full. En-system, additional hole preparation is not generally neces-sure there are no voids in the resin. If the hole is too deepsary. If using diamond drill, the hole must be flushed withfor the nozzle to reach the back, use an extension nozzle.clean water, cleaned with a wire brush and flushed againIn wide/overhead holes a piston plug will help reduce slumpbefore using the cleaning process described below.and ensure a void-fee application. This is particularly rec-If rebar is struck immediately stop drilling and seek the ad-ommended for holes above 16mm diameter.vice of the designing engineer.Observing the product gel time, insert the fixing into the holeClean holes immediately prior to installation of fixings tousing a gentle twisting motion. Ensure the fixing is insertedavoid them becoming re-contaminated.to the required depth and is held straight until the resin sets.Standing water in the hole shall be removed prior to preparation. Using compressed air insert the nozzle to the back ofthe hole and blow out 2 times.Insert a wire cleaning brush to the bottom of the hole andThere should be some extrusion of the Lokfix material fromthe hole which indicates that there is full embedment.Do not load or apply tension to the fixing until the productfixing time has been observed, see table 2 .brush out 2 times. Cleaning brush should be at least 0.5mmDo not over-tighten fixings. Observe maximum installationwider than diameter of drill hole.torque as stated in table 4.Using compressed air insert the nozzle to the back of theIf the cartridge is to be re-used, remove the mixing nozzlehole and blow out an additional 2 times.and re-apply the cap. When using again, a new mixing noz-If dust is still present, repeat the process until no further dustis visible.Ensure the drill bit and the cleaning brush are of suitablezle will be required, ensure product is pre-extruded and ofconsistent colour before use.Cleaningdiameter for the fixing used. Consult tables 3 and 4 for spe-Uncured resin should be removed from tools and equipmentcific diameters.using Fosroc Solvent 102 immediately after use.Fixings PreparationEstimatingFixings shall be free from rust, paint, grease and contami-Supplynants which will interfere with the bond.Mark the required depth on the fixing.Lokfix E77 is supplied in boxes of 12 no. 440ml cartridges,each supplied with a single mixer nozzle. It may also beInstallationsupplied in 585ml cartridges.Lokfix E77 requires a special 3:1 application gun, this can beFosroc may also supply:supplied by Fosroc. Lokfix application gun, suitable for 440 and 585ml sizes.Page 4
Fosroc Lokfix E77 Various sized steel brushes, to clean the hole.Storage Extension nozzle, essential where the embedment depthLokfix E77 Cartridges have a maximum shelf life of 24is greater than 190mm. In various lengths. Piston plugs, required where the hole diameter is 18mmor where embedment depth is 250mm. Must be usedwith an extension nozzle.months when kept in a dry warehouse at between 5 to 35ºC. It is possible to allow cartridge temperature to raise to 40ºC immediately prior to application.Further Information Spare mixer nozzles, required if a cartridge is to be reused.Further product information is available including, EAD certification, SDS, Method Statements and calculation software.YieldThis can be found at www.lokfix.com or by contacting yourlocal Fosroc office.The following calculation of theoretical consumption may beused. Factors such as over-drilling, extrusion from bolt hole,initial gun extrusion and some wastage should also be considered.PrecautionsHealth & SafetyObserve the information provided on the relevant SDS.Theoretical Consumption:( radius cm hole2 - radius cm bolt2) x hole length cm consumption ml.Practical Consumption: radius cm hole2 x hole length cm x 0.67 consumption ml.LimitationsLoad calculations should always be undertaken by a qualifiedengineer.For designing under conditions where extended service life,seismic forces or fire is a consideration, please consult therelevant certification to make suitable adjustments for loading.*consult test data for specific conditionsLokfix E77 may stain natural or decorative stone. Pleasecheck suitability before using for such applications.Where faster gelling or setting times are required, considerusing Lokfix E55 or Lokfix E45T. Fosroc and Lokfix are registered trademarks of FosrocInternational LimitedImportant noteFosroc products are guaranteed against defective materials and manufacture and are sold subject to its standard Conditions for the Supplyof Goods and Services, copies of which may be obtained on request. Whilst Fosroc endeavours to ensure that any advice, recommendation,specification of information it may give is accurate and correct, it cannot, because it has no direct or continuous control over where or how itsproducts are applied, accept any liability either directly or indirectly arising from the use of its products, whether or not in accordance with anyadvice, specification, recommendation of information given by it.Fosroc International LimitedDrayton Manor Business ParkColeshill Road, Tamworth,Staffordshire B78 3XN. UKtelephone: 44 (0)1827 262222fax: 44 (0)1827 262444email:enquiryuk@fosroc.comwww.fosroc.comPage 5Issued on 07/10/2021
High performance pure epoxy 3:1 resin car-tridge system, for anchoring reinforcement and fixings into a variety of substrates. . Note general storage conditions. **The stated curing time is for dry conditions. In wet/damp . Anchor Size M8 M36M10 M42M12 M16 M20 M24 M27 M30 M33 .
