7. The Contractor installing the Sectional Lining system shall have completed at
least three (3) projects, in the United States, within the past three (3) years and
projects that included CIPP installation lengths of at least 300 continuous
linear feet, on-site wet-out or resin impregnation of the liner tube, and design
of a similarly sized Sectional Liner wall thickness based on a fully deteriorated
condition.
ASTM F 1743: Rehabilitation of Existing Pipelines and Conduits
by Pulled-in-Place Installation of Cured-in-Place
Thermosetting Resin Pipe (CIPP)
* (Note: The Contractor may substitute an alternative method other than by
inversion to install the liner, as approved by the Engineer.
1.03 QUALITY ASSURANCE
A. REQUIREMENTS
1.
SECTION 02650
CURED-IN-PLACE PIPE (CIPP) LINING OF EXISTING SEWERS
PART 1 GENERAL
1.01 DESCRIPTION
A.
SCOPE
3.02 LEAKAGE TESTS:
A. Leakage tests shall be made by the Contractor and observed by the Engineer on each
manhole. The test shall be by vacuum or by water exfiltration as described below:
B. VACUUM TEST:
1. The vacuum test shall be conducted in accordance with ASTM C1244. Test results will
be judged by the length of time it takes for the applied vacuum to drop from 10 inches
of mercury to 9 inches. If the time is less than that listed in Table 1 of ASTM C1244,
the manhole will have failed the test. Test times from Table 1 are excerpted below.
All holes in sections used for handling the sections shall be thoroughly plugged with
mortar. Mortar shall be one part cement to 1-1/2 parts sand, mixed slightly damp to
the touch (just short of "balling"), hammered into the holes until it is dense and an
excess of paste appears on the surface, and then finished smooth and flush with the
adjoining surfaces.
BRICK WORK:
1. Bricks shall be moistened by suitable means, as directed, until they are neither so dry as to
absorb water from the mortar nor so wet as to be slippery when laid.
F. Watertight type manhole frames with 32-inch diameter covers (bolted and gasketed) shall be
4 bolt, 630 pounds minimum by E.L. LeBaron Foundary Co. No. LCB328; Quality Water
Products, Style C47WT; Neenah Foundary Co., R-17550-H or approved equal.
G. Catch basin frames with 2-1inch square openings and 23-7/8-inch square grates shall be 8-
inches in height and 460 pounds minimum. They shall be Neenah Foundry Co. No. 3405;
Quality Water Products No. 45; E.L. LeBaron Type F; or approved equal.
J.
2.02
A.
2.03
B.
unit shall be tagged and removed from the job site immediately.
The Engineer may also require the testing of concrete sections as outlined under Physical
Requirements in ASTM C478 with the Contractor bearing all testing costs.
BRICK MATERIALS:
3. Sections shall be steam cured and shall not be shipped until at least five days after
having been cast.
4. Minimum compressive strength of concrete shall be 4000 psi at 28 days.
5. No more than two lft holes may be cast or drilled in each section.
6. The date of manufacture and the name or trademark of the manufacturer shall be
clearly marked on the inside of each precast section.
7. Acceptance of the sections will be on the basis of material tests and inspection of the
completed product.
x
ASTM C144 Aggregate for Masonry Mortar
ASTM C207 Hydrated Lime for Masonry Purposes
ASTM C478 Precast Reinforced Concrete Manhole Sections
ASTM C923 Specification for Resilient
Connectors Between Reinforced Concrete
Manhole Structures and Pipes
ASTM C1244 Standard Test Method for Concrete Sewer Manholes by the
