Page 103 - Trenchless Technology Piping Installation and Inspection

70 Cha pte r T w o

Min. per ASTM Enhanced
Property Test Method F1216-09 Resin
Modulus of elasticity ASTM D790-07 250,000 psi 400,000 psi
Flexural stress ASTM D790-07 4500 psi 4500 psi

TABLE 2.7 Minimum CIPP Cured Polyester Composite Physical Properties

Polyester/ Premium Poly/ ASTM Test
Physical Property Vinyl Ester Vinyl Ester b Epoxy Method
Flexural strength, 4500– 4000– 5000 D 790-07
(psi) 5000 5000
Flexural modulus 250,000– 350,000– 300,000 D 790-07
of elasticity, 350,000 500,000
E (psi)
Flexural modulus 125,000– 175,000– 75,000– —
of elasticity 175,000 300,000 180,000
reduced to account
for long-term
effects, E (psi)
L
For pressure 2500– N. R. c 4000 D 638
pipes only: 3500
tensile strength,
(psi)
t

a Values shown are for typical resins used in the CIPP process. Specific physical properties
should be obtained from an CIPP representative for the particular resin system used
and local field conditions encountered.
b Premium vinyl ester systems will affect the chemical resistance of the final product;
contact an CIPP representative for assistance.
c N. R. = not recommended.

TABLE 2.8 Typical Physical Properties of Cured Liner Composites a

Ovality, % (q) 0 1.0 2.0 4.0 5.0 6.0 8.0 10.0
Factor C 1.00 0.91 0.84 0.70 0.64 0.59 0.49 0.41
TABLE 2.9 Typical Ovality Factors