Laserfiche WebLink
11/15/1995 07: 38 6045304466 DEC-K_ ING PAGE 07 <br /> TABLE 1 <br /> Requirements for PVC membranes <br /> (Unless otherwise specified, these are minimum requirements). <br /> Property <br /> Requirement.r._......_._..... <br /> Type 1 Type 2 1 Type 3 Type 4 <br /> Overall thickness, mm <br /> Coating thickness, mm- 0.4 0.4 <br /> Tensile strength, MPa �T 10.4 10.4 <br /> Breaking strength, kN/m . . . 35 35 <br /> Elongation at break, 96 250 2.50 154 15b <br /> Lap joint strength, as % of tensile/breaking <br /> strength <br /> Initial, - 75- <br /> After <br /> 75-After 7 d in boiling waters 70 <br /> Low temperature impact S out of 10 puss <br /> Retention of properties after heat aging, as % of <br /> originald <br /> Tensilelbreaking strengtlt - 90 --- <br /> 131onga600 90--- <br /> Low temperature flexibility peas <br /> Low temperature flexibility -- pas: <br /> Resistance to accelerated weathering —no cracking, blistering or appreciable <br /> Visual inspection Colour change— <br /> Elongation, % of originalb 90 <br /> Low temperature impact 8 out of 10 pass <br /> Low temperature flexibility pass— <br /> Water vapour transmission, max. g/m2 in 24 h <br /> Classes A and 113 4.0--- <br /> Class C — 1.0— <br /> Effect <br /> --- 1.0— <br /> Effect of water absorption <br /> Mass increase, max. % 3.0 <br /> Tensile breaking strpength, % of original 90 <br /> Elongation, % of originalb --90 <br /> Dimensional change, max. % <br /> Without loading 2.0 0.5 0.5 0.5 <br /> With loading <br /> Machine direction 0.5 0.5 0.5 0.5 <br /> Cross machine direction 0.2 0.2 0.2 0.2 <br /> Cone penetration. N 30- -- <br /> Asphalt compatibility <br /> Class D only <br /> Mass decrease, max. 5.0 <br /> Notes <br /> a. With no single measurement less than 0.32 mm. <br /> b. The PVC matrix Hurst not break before the reinforcement <br /> c. No shearing of the lap,Joint shall occur. <br /> d With no delamination. <br />