B.
manufacturer and approved by the Engineer. Upon request, the Contractor
shall furnish satisfactory written certification that the materials comply with
the manufacturer’s standards and the reference specifications.
General corrosion requirements: The liner shall be fabricated from materials
which, when cured, will be chemically resistant to withstand exposure to
normal sewage effluent.
minimum of one month at 73.4 degrees F when subjected to the following
solutions:
Chemical Solution Concentration, %
Tap Water (ph 6-9) 100
Nitric Acid 5
Phosphorus Acid 10
Sulphuric Acid 10
Gasoline 100
Vegetable Oil 100
Detergent 0.1
Soap 0.1
The Contractor shall be responsible for all costs associated with the chemical
resistance tests. Proof of meeting these requirements shall be provided to the
Engineer for approval at least 7 days prior to the commencement of work.
1.09 WARRANTY
Parameter C.LP.P. System
1. Pipe Condition Fully deteriorated
2. Soil Type Per in-situ conditions
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.
of a similarly sized Sectional Liner wall thickness based on a fully
deteriorated condition.
* (Note: The Contractor may substitute an alternative method other than by
inversion to install the liner, as approved by the Engineer.
1.04 QUALITY ASSURANCE
A.
REQUIREMENTS
1.
Products used in the work of this section shall be produced by manufacturers
regularly engaged in the manufacture of cured-in-place liners for municipal
wastewater systems and with a history of successful production acceptable to
the owner.
B. Section 02085, POLY VINYL CHLORIDE PIPE AND FITTINGS
C. Section 02252, SUPPORT OF EXCAVATION
D. Section 02300, EARTHWORK
E. Section 02441, CLEANING, ROOT CUTTING, AND TELEVISION (CCTV)
INSPECTION OF PIPELINES
F. Section 02631, PRECAST MANHOLES
G. Section 02745, ROAD RESTORATION
H. Section 02800, MANHOLE REHABILITATION
1.03 REFERENCE STANDARDS
A. ASTM STANDARDS
The following references are part of this Specification. The latest edition of the
following references shall be used:
SECTION 02650
CURED-IN-PLACE PIPE (CIPP) LINING OF EXISTING SEWERS
(HOT WATER & STEAM)
PART 1 GENERAL
1.01 DESCRIPTION
A.
SCOPE
Contractor shall take any steps necessary to assure the Engineer that the water table is
below the bottom of the manhole throughout the test.
4. Ifthe groundwater table is above the highest joint in the manhole, and there is no
leakage into the manhole, as determined by the Engineer, such a test can serve to
evaluate water-tightness of the manhole. However, if the Engineer is not satisfied
with the results, the Contractor shall lower the water table and carry out the test as
described hereinbefore.
3.03 CLEANING:
Times (Seconds)
0-12 30 39 49
12-16 40 52 67
16-20 50 65 81
20-24 59 78 97
26-30 74 98 121
If the manhole fails the initial test, the Contractor shall locate the leaks and make
proper repairs. Leaks may be filled with a wet slurry of accepted quick setting
material. If the manhole should again fail the vacuum test, additional repairs shall be
made, and the manhole water tested as specified below.
C. WATER EXFILTRATION TEST:
lL.
C. CASTINGS:
L.
Cast iron frames, grates and covers shall be as specified. The frames and covers
shall be set by the Contractor to conform accurately to the grade of the finished
pavement, existing ground surface, or as indicated on the drawings. Frames shall be
adjusted to meet the street surface.
