Conbextra EP75 constructive solutions - Noble Corp

1 Conbextra EP75constructive solutionsConbextra ep75 High strength, epoxy resin groutUsesProvides a free flowing grout, for use where physicalproperties and chemical resistance of the hardened groutare of utmost importance. It is suitable for a wide range ofheavy duty applications including : Underplate grouting to substantial structural elements. Base plate grouting in dynamic load situations such asturbines and other reciprocating machinery. Heavy industrial applications in steelworks, refinerieschemical plants and electroplating works. Structural infill where very high strength is required. Rail track applications, to support heavy cranes, or ontransporter Excellent durability - high compressive, flexural and tensilestrengths ensure a long working life. Cost effective - high early strength gain promotes minimumdowntime and early commissioning of plant.

2 User friendly - simple, full pack mixing to ensure that theperformance characteristics are achieved. Versatile - suitable for a wide range of loading situationsincluding repetitive dynamic loads. Excellent in service performance - non-shrink capabilityensures full surface to surface ep75 is a solvent free epoxy resin grout designedfor grouting of gap widths of 10 to 75 mm. It is supplied as athree component system consisting of base, hardener andspecially graded aggregate. The components are suppliedin the correct mix proportions designed for whole pack mixingon shown on the contract documents, the epoxy groutshall be Conbextra ep75 supplied by Fosroc. It shall providegood general chemical resistance, 7 day compressivestrength of at least 100 N/mm2 and a compressive creep in accordance with ASTM C1181 PropertiesPot life:2 hours @ 23 CTensile strength:14 N/mm2 at 7 daysFlexural strength:26 N/mm2 at 7 daysCompressive strength:90 N/mm2 at 1 day95 N/mm2 at 3 days100 N/mm2 at 7 daysMaximum flow distance for a head of 100 mm at 20 C :35 mm gap-2000 mm70 mm gap-3500 mmCoefficient of thermal expansionASTM C531 x 10-6 Compressive creep(ASTM C1181- 1 year, 60 C) x 10-3 mm/mmApplication instructionsPreparationUnderplate groutingThe unrestrained surface area of the grout must be kept to aminimum.

3 Generally, the gap between the perimeter formworkand the plate edge should not exceed 75 mm on the pouringside and 25 mm on the opposite side. Formwork on the flanksides should be kept tight to the plate edge. Air pressurerelief holes should be provided to allow venting of any isolatedhigh formwork should be constructed to be leak proof asConbextra ep75 is a free flow grout. This can be achieved byusing foam rubber strip or mastic sealant beneath theconstructed formwork and between free flow grout conditions, it is essential to provide ahydrostatic head of grout. To achieve this a feeding hoppershould be used - please consult your local Fosroc office formore surfaceThis must be free from oil, grease, or any loosely adherentmaterial. If the concrete surface is defective or has laitence,it must be cut back to a sound base.

4 Bolt holes or fixingpockets must be blown clean of any dirt or ep75 Base plateIf delay is likely before placing steel base plates, it isrecommended that the underside and edge are coated withNitoprime 25* to prevent rust formation and ensure bondingwith the Conbextra ep75 grout. All metal surfaces should becleaned to a bright finish in accordance with SwedishStandard SA 2 or equal. nitoprime 25 can be applied directlyonto newly cleaned steel surfaces even if they are entire contents of the hardener can should be pouredinto the base container and mixed until homogeneous. Placethe mixed base and hardener into a suitable forced actionmixer making sure that the entire volume is poured in. Addthe aggregate and mix for 2-3 minutes or until uniform colouris achieved. Once mixed, the material must be used withinthe specified pot life (see under Properties).

5 After this time,unused material will have stiffened and should be :Immediately prior to placement, all surfaces must be that the grout can be placed within its pot grout flow is essential. Sufficient grout must beavailable prior to starting and the time taken to pour a batchmust be regulated to the time taken to prepare the next should be from one side of the void to eliminate airentrapment. The hydrostatic head must be maintained at alltimes so that a continuous grout front is tools and equipment should be cleaned immediately afteruse with Nitoflor Sol*.Hot weather workingWhilst the performance of Conbextra ep75 at elevatedtemperatures is assured, application under such conditionscan sometimes be difficult. It is therefore suggested that, fortemperatures above 35 C, the following guidelines are used:iStore unmixed materials in a cool (preferably temperaturecontrolled) environment, avoiding exposure to Keep mixing and placing equipment cool, arrangingshade protection if necessary.

6 It is especially important tokeep cool those surfaces of the equipment which will comeinto direct contact with the material Try to eliminate application in the middle of the day, andcertainly avoid application in direct Ensure that there are sufficient operatives available tocomplete application within the material s pot should not be placed in any unrestrained situation, base plate plinths, etc. Failure to comply may lead tocrack development in the ep75 :14 litre packsNitoprime 25:1 and 4 litre packsNitoflor Sol:5 & 20 litre tinsCoverageNitoprime 25 - m2/litreStorageWhen stored in warehouse conditions below 35 C, ConbextraEP75 will have a shelf life of 12 ep75 PrecautionsHealth and safetySome people are sensitive to epoxy resin so gloves and a barriercream or similar should be used when handling these contact with the resin occurs, it must be removed before ithardens with a resin removing cream.

7 Follow by washing withsoap and water. Do not use solvent. The use of goggles isrecommended but should accidental eye contamination occur,wash thoroughly with plenty of clean water and seek medicaltreatment 25 and Nitoflor Sol are pointsNitoprime 25:39 CNitoflor Sol:33 CConbextra ep75 INDIA/2004/0355/AImportant note :Fosroc products are guaranteed against defective materials and manufacture and are sold subjectto its standard terms and conditions of sale, copies of which may be obtained on request. WhilstFosroc endeavours to ensure that any advice, recommendation specification or information it maygive is accurate and correct, it cannot, because it has no direct or continuous control over whereor how its products are applied, accept any liability either directly or indirectly arising from theuse of its products whether or not in accordance with any advice, specification, recommendationor information given by fax e-mail++91 80-22240018/120 ++91 80-22233474 Chemicals (India) Pvt.

8 Office111/3, Hafeeza Chamber II Floor,K H Road, PBNo. 2744, Bangalore Denotes the trademark of Fosroc International Limited Regional OfficesBangaloreMumbai Delhi KolkataShankar House, IV Floor208/209, PersepolisFirst floor,1/2 East Patel Nagar30/B Jodhpur Park1 & 18, RMV ExtensionSector 17, VashiOpp: Vivek Cinema, Main Patel RdGround FloorBangalore 560 080 Navi Mumbai 400 703 New Delhi 110 008 Kolkata 700 068Ph:080-2361 3161/2361 2004Ph:022-2789 6412/14Ph:011-25884903/4Ph: 033 2472 5482 Fax : 080-2361 7454 Fax: 022 - 2789 6413 Fax: 011- 25884422 Fax: 033-2472 9921email: : (079) 26762799 zAnkleshwar :(02646) 220704/224687 z Bhubaneshwar : (0674) 2521176 z Chennai (044) 24899949/24853383zChandigarh : (0172) 2639360 z Cochin : (0484) 2356668 zCoimbatore : (0422) 2472966 zGoa : (0832) 2542465 zGuwahati (0361) 2548793zHyderabad : (040) 27662324/27662425 z Hubli (0836) 3402597 zIndore.

9 (0731) 504339/5061477 z Jaipur : (0141) 2235349 z Lucknow :(0522)22239044z Nagercoil (04652) 2224849 z Mangalore: (0824) 22272234 z Visakhapatnam : (0891) 2564850 See separate data sheet