\$\$607.00A

######### Section 607.---CLEANING, RECONDITIONING, AND REPAIRING EXISTING DRAINAGE STRUCTURES

Revised 8 May 2005

# [INCLUDE THE FOLLOWING FOR PIPE LINERS]{.mark}

\$\$607.01A

607.01. Add the following:

This work includes of lining existing culverts.

# [INCLUDE THE FOLLOWING FOR PIPE LINER MATERIALS]{.mark}

\$\$607.01B

607.01. Add the following after Subsection 607.01:

**607.01A. Materials.** Conform to the following Sections and
Subsections:

*[INCLUDE THE FOLLOWING FOR CEMENT MORTAR PIPE LINERS]{.mark}*

\$\$607.01C

> Portland cement 701.01
>
> Water 725.01

# [INCLUDE THE FOLLOWING FOR POLYURETHANE PIPE LINERS]{.mark}

\$\$607.01D

> Furnish a polyurethane pipe liner conforming to:

[]{.mark}

###### [INSERT THE SPECIFICATIONS FOR THE PIPE LINER]{.mark}

*[INCLUDE THE FOLLOWING FOR CEMENT MORTAR PIPE LINERS]{.mark}*

\$\$607.01E

> Furnish a cement mortar pipe lining conforming to AWWA C 602.
>
> Furnish sand meeting the following gradation:

  -------------------- ---------------------- -----------------------------------
  [Sieve                                      [Percentage Passing]{.underline}
  Sizes]{.underline}                          

                       14 [(1.18 mm)]{.mark}  100

                       20 [(850 m)]{.mark}    95-100

                       30 [(600 m)]{.mark}    85-95

                       40 [(300 m)]{.mark}    15-35

                       100 [(150 m)]{.mark}   1.5-5

                       200 [(75 m)]{.mark}    1-3

                       37.5µm                 0
  -------------------- ---------------------- -----------------------------------

\$\$607.02A

607.02. Add the following:

The dry components of the cement mortar shall be 50 percent sand and 50
percent portland cement by weight.

After addition of the water, provide a mortar that is well mixed and
will provide a dense, homogeneous lining that will hold firmly against
the pipe surface. Carefully control and keep the water-cement ratio to a
minimum. Allow for any existing moisture on the walls of the pipe.
Premix the mortar by machine for a sufficient length of time to obtain
maximum plasticity, or 3 minutes minimum.

# [INCLUDE THE FOLLOWING WHEN WATER IS BEING USED]{.mark}

\$\$607.02B

607.02. Add the following:

Provide for the control and disposal of any accumulation of water that
interferes with construction.

# [INCLUDE THE FOLLOWING FOR PIPE LINERS]{.mark}

\$\$607.06A

607.06. Add the following after Subsection 607.06:

**607.06A. Pipe Lining.** Remove and dispose all silt, sand, debris,
detritus, or other sedimentation or foreign material from within pipe to
be lined, and from inlet and outlet areas. Remove all dirt, rust,
tubercles, scale, loose or deteriorated remnants of old lining
materials, accumulated water, and all other foreign materials from the
interior surface of the pipe before lining. After cleaning, the interior
of the pipe shall present a surface free of all foreign material except
nondeteriorated original coating.

Install pipe lining according to the manufacturer\'s recommendations.
Hand-place cement mortar lining only at sharp bends and special
locations where machine placing is impracticable.

Patch holes in the existing pipe with cement mortar before the
application of the lining.

Pave existing culvert inverts with cement mortar if they are
deteriorated to the extent that an acceptable lining would not be
achieved before centrifugal application of linings. Fill cavities
beneath badly deteriorated inverts with concrete, grout, or other method
acceptable to the CO.

Close the pipe at both ends to prevent the circulation of air. After the
final pass with the machine, introduce water into the closed section to
create a moist atmosphere and keep the lining damp. Maintain curing for
a minimum of 3 calendar days.

\$\$607.07A

607.07. Add the following:

Lining materials will be evaluated under Subsection 106.03. Lining
construction will be evaluated under Subsection 106.04. After curing,
drill holes (1 per 50 feet [(15 meters)]{.mark}) to verify lining
thickness at random locations selected by the CO. Patch the hole after
thickness verification.