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COMPOSITE, SELF-ADHERING MEMBRANE SHEETING

 
  
 
e.
Retention of properties after heat aging, ASTM D 3045;
f.
Tensile strength, ASTM D 638:, 95 percent of original;
g.
Elongation, ASTM D 638:, 95 percent of original;
h.
Tear resistance, ASTM D 1004:, 7.7 Kilogram Force;, 17 Pound Force
i.
Low Temperature Bend , ASTM D 2136:, -40 C; -40 F;
j.
Liner Dimensional Change, ASTM D 1204: 0.002 percent; and
k.
Weight Change After Immersion in Water, ASTM D 570:, 2.0 percent
maximum.
2.3.2
Adhesives
a.
Adhesive for thermoplastic flashings as recommended by
manufacturer.
b.
Adhesive for Sub-Membrane Grid:  100% solids, two-part urethane,
with minimum tensile strength of 1.04 MPa, 150 psi, in accordance
with ASTM D 412 and adhesion to concrete of 12 ply in accordance
with ASTM D 429 as recommended by manufacture.
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NOTE: Where recommended by the manufacturer for
below ground membrane sheeting, provide securement
strip at perimeter and at any penetrations(s) as
well as any elevation changes.
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2.3.3
Accessories
a.
Securement Strip:  14 gauge stainless steel metal bar, 1 inch 2.54
cm wide, pre-punched 1 inch 2.54 cm on center for securement.
2.4
COMPOSITE, SELF-ADHERING MEMBRANE SHEETING
Cold applied composite sheet consisting of rubberized asphalt and cross
laminated, high density polyethylene film. Not less than 1.5 mm 60 mils
minimum thickness is required.
2.4.1
Composite, Self-Adhering Sheeting Performance Requirements
a.
Tensile Strength, ASTM D 412, Die C:
1.6 MPa
250 psi minimum;
b.
Ultimate Elongation, ASTM D 412, Die C:
200 percent minimum;
c.
Water Vapor Transmission,ASTM E 96 26.7 Degrees C 80 Degrees F
Permeance,  Procedure B:  5.72 x 10-7 g/Pa.s.m2 0.1 perm maximum;
d.
Pliability Degrees F, ASTM D 146: (180 Degrees Bend Over  25 mm
One Inch Mandrel):  No cracks at minus -32 degrees C -25 degrees F;
e.
Cycling Over Crack at Minus -26 degrees C 15 Degrees F: Membrane
is applied and rolled across two primed concrete blocks with no
SECTION 07131
Page 9


   


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