3. Design Thickness Fiberglass: ASTM 1216 Design Formula,
4. Ovality of Pipe: 2% of circumference.
5. Soil Land 120 Ibs/ft.?
6. Traffic Loads Per AASHTO-HS-20-44 Highway Loading
7. Modulus of Soil 500 psi.
8. Maximum Deflection 5%
9. Minimum Safety 2.0
10. Resin Migration Not Allowed
11. Soil Cover Maximum depth of cover over the pipe
crown to highest ground surface along the
length of the pipe lining.
12. Water Table Assume at ground surface.
PHYSICAL PROPERTIES: The cured pipe shall conform to the minimum
structural standards, as follows:
Tensile Stress ASTM D-638 3,000psi
Flexural Stress ASTM D-790 4,500psi
Modulus of Elasticity ASTM D-790 250,000psi
(Initial)
Modulus of Elasticity ASTM D-2990 125,000psi
(Long Term)
Porosity/Water Tightness Test Tight
1.07 LINER THICKNESS CALCULATIONS
A. Calculations for the fiberglass liner design and thickness for each manhole to
manhole section of pipe shall be prepared, signed and sealed by a Professional
Engineer registered in New Hampshire, and submitted to the Engineer for review
prior to lining. The minimum allowable thickness for CIPP products is 3.5mm and
must be increased as necessary to meet ASTM 1216 Design Formula in 0.7mm
manufacturing increments. Lining products below the stated minimum wall
thickness (above) will not be allowed under any circumstances.
1.08 CHEMICAL RESISTANCE
A. CHEMICAL RESISTANCE
Chemical resistance shall be in accordance with the requirements of Section 8 of
ASTM F 1216, Section X2, Chemical Resistance Tests for polyester resins and
completed in accordance with Test Method D 543. Exposure should be for a
minimum of one month at 73.4 degrees F when subjected to the following
solutions:
2019 CIPP Lining Project CIPP Lining of Existing Sewers (Ultraviolet)
Nashua, NH 02651-5
