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Technical Dayta Sheet Compedium

CONTENTS CONCRETE REPAIR CORROSION CONTROL GROUTS & ANCHORS PROTECTIVE COATINGS INDUSTRIAL FLOORING SURFACE TREATMENTS JOINT SEALANTS CONCRETE JOINTING ROOFING WATERSTOPS WATERPROOFING JOINT FILLERS TIMBER FLOORING ALPHABETICAL INDEX 354 Page 2 Fosroc® Flamex PU Movement Accommodation Factor (MAF) The Movement Accommodation Factor is a figure quoted indicating the ability of a sealant to accommodate joint movement throughout the service life of that sealant, expressed as a percentage of the joint width at time of sealing. Sealants may withstand considerably higher joint movements than their quoted MAF, but continued movements outside recommended levels may result in premature failure. To calculate the desired joint width knowing the expected maximum working movement of joint: W = M + M MAF/100 W = joint width M = expected maximum working movement of joint MAF = Movement Accommodation Factor of that sealant Design Criteria Flamex PU may be used in joints from 5 mm to 40 mm wide. Joint depth should not be less than 10 mm. For joints over 20 mm wide, depth should be half of the width. Refer to fire test data (Table 1) for correct joint size and orientation to achieve required fire rating. Diagram 1 Vertical and horizontal wall joints - single sided seal remote from fire w = either 20mm (test specimen 5) or 40mm (test specimen 2) d =10mm or w/2, whichever is the greater w Flamex PU PEF Rod Fire d Diagram 2 Vertical and horizontal wall joints - single sided seal exposed to fire Fire Flamex PU PEF Rod d w = either 20mm (test specimen 1) or 40mm (test specimen 3) d = 10mm or w/2, whichever is the greater w Diagram 3 Vertical and horizontal wall joints - both sides sealed Flamex PU PEF Rod w = either 20mm (test specimen 4) or 40mm (test specimen 6) d = 10mm or w/2, whichever is the greater w d d Fire Joint type (Seal orientation) Diagram number Fire test specimen number Seal size (width x depth) Integrity rating (minutes) insulation rating (minutes) in concrete wall thickness at least 120 mm 150 mm 180 mm Single side seal only on side remote from fire 1 5 20 x 10 240 60 60 60 2 40 x 20 240 60 60 60 Single side seal only on side exposed to fire 2 1 20 x 10 240 90 120 180 3 40 x 20 240 120 180 240 Both sides sealed 3 4 20 x 10 240 120 180 240 6 40 x 20 240 120 180 240


Technical Dayta Sheet Compedium
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