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32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf

CONTENTS CONCRETE REPAIR CORROSION CONTROL GROUTS & ANCHORS PROTECTIVE COATINGS INDUSTRIAL FLOORING SURFACE TREATMENTS JOINT SEALANTS CONCRETE JOINTING JOINT FILLERS WATERPROOFING WATERSTOPS ROOFING TIMBER FLOORING ALPHABETICAL INDEX 537 Fosroc® Proofex Engage Application Instructions Substrate preparation Horizontal application - the membrane must be applied to a smooth prepared substrate. Concrete blinding is preferred but a well compacted granular fill is acceptable for a level subbase. The substrate shall be free from loose aggregate or other sharp protrusions. Standing water must be removed to prevent contamination of overlaps and subsequent compromise of waterproof properties. Vertical application - the membrane is applied to formwork or adjoining structures. Proofex Engage must not be applied directly onto contiguous or secant piled walls. A plywood sacrificial shutter or spray concrete finish should be used prior to application. Membrane installation Cut the membrane to a convenient length for installation. Carefully align the membrane and roll it out with the ribbed surface uppermost. Lay adjacent sheets accurately so they overlap the previous sheet 80mm along the adhesive selvedge. When laying adjacent full rolls there should be a stagger of half a roll length to avoid a build up of end joints in one area. End joints and cut edges - butt join the Proofex Engage sheets onto Proofex Engage Detail Strip. The top surface of the join can be further sealed with a 40mm wide strip of Fosroc Polyurea WCS GG (extending a minimum of 20mm either side of the formed joint), refer to the separate data sheet. Or a 100mm wide strip of Proofex LM (extending 50mm either side of the formed joint). Horizontal to vertical joints - lap Proofex Engage onto Proofex “L” section and over seal with a 40mm wide strip of Fosroc Polyurea WCS GG (extending a minimum of 20mm either side) or a 40mm fillet of Proofex LM. All overlaps and joints should be firmly rolled to ensure complete adhesion between layers. If cold or damp conditions prevail the selvedge adhesive and/or Proofex Engage Detail Strip may be tackified by gently warming. Up to 50mm movement capability for the Proofex Engage under Supercast Rearguard Waterstop Epoxy grout encapsulating the pile top and flowing into the Proofex Engage mesh to give assured watertight integrity in deep basements. Finished off with a seam of Polyurea WCS. Removal of formwork Where the membrane has been applied to removable shuttering it is recommended that a minimum concrete compressive strength of 10N/mm² is reached before the formwork is stripped. Laid directly on top of well compacted gravel base 250mm


32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf
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