Agenda

early strength, hand-applied cementitious materials for stopping infiltrating water and
making repairs to concrete, brick, or other masonry-constructed manholes. The materials
shall be non-shrinking, nonmetallic, and non-corrosive. The materials shall be
compatible with the lining material used. Infiltration control and patching materials shall
be as manufactured by The Strong Company, Inc., Raven Lining Systems, Madewell
Products Corporation, Quadex, Inc., or Engineer-approved equal.

2.03

compatible with the lining material used. Infiltration control and patching materials shall
be as manufactured by The Strong Company, Inc., Raven Lining Systems, Madewell
Products Corporation, Quadex, Inc., or Engineer-approved equal.

B. Failure will be deemed to have occurred if the grout fails to prevent groundwater
infiltration or prevent the internal deterioration or corrosion of the manhole. If any such
failure occurs within the warranty period, the damage shall be repaired by the Contractor
in a manner satisfactory to the Engineer at no cost to the Owner within 60 days after
written notification of the failure. The repaired grout application shall have an additional
2 years duration warranty period starting on the date of repair.

PART 2 - PRODUCTS

2.01 GENERAL:

6. Instructions for installation and repair

7. Manufacturer’s statement of compatibility between epoxy coating and
cementitious base coat.

8. The qualifications of the Contractor shall be submitted to the Engineer for
evaluation prior to commencement of work. These qualifications shall include
detailed descriptions of the following:

a. Name, business address, and telephone number of the Contractor

b. Name(s) of all supervisory personnel that will be directly involved in the
Project

10.

11.

12.

13.

14.

ASTM C882 Standard Test Method for Bond Strength of Epoxy-Resin
Systems Used With Concrete By Slant Shear

ASTM C1244 Standard Test Method for Concrete Sewer Manholes by the
Negative Air Pressure (Vacuum) Test Prior to Backfill

ASTM D412 Standard Test Methods for Vulcanized Rubber and
Thermoplastic Elastomers — Tension

ASTM D624 Standard Test Method for Tear Strength of Conventional
Vulcanized Rubber and Thermoplastic Elastomers

SECTION 02800

MANHOLE REHABILITATION

PART 1 - GENERAL

1.01

A.

1.02

1.03

SCOPE OF WORK:

Provide all labor, materials, accessories, equipment, tools, and incidentals required to
rehabilitate and test manholes as shown on the Drawings and as specified herein,
including interior manhole surface preparation, decanting and disposal of debris at the
City landfill, flow diversion, inflow control, invert and invert reconstruction, internal
cement or epoxy lining system, and pipe connections.

A. The Contractor shall replace all pavement markings removed or covered-over in carrying out
the work, and as directed by the Engineer, no sooner than 48 hours after completion of
permanent pavement. The markings and respective mixture and application requirements
shall conform to the requirements of NHDOT Standard Specifications Section 632.

B. When directed by the Engineer, the Contractor shall provide temporary markings at no
additional cost to the Owner.

3.06

A.

3.07

3.08

3.09

When directed by the Engineer, the Contractor shall furnish and install additional paving to
provide satisfactory transition for driveways and walkways impacted by a new curb-to-curb
pavement installation. The transition installation will be considered incidental to the
curb-to-curb pavement installation.

RAISING AND ADJUSTING CASTINGS:

B. BASE COURSE AND BINDER COURSE PAVEMENT:

1. Immediately prior to installing the base and/or binder course, the trimmed edges shall
be made stable and unyielding, free of loose or broken pieces and all edges shall be
thoroughly broomed clean. Contact surfaces of trench sides, curbings, manholes,
catch basins, or other appurtenant structures in the pavement shall be painted
thoroughly with a uniform coating of asphalt emulsion (tack coat), just before any
mixture is placed against them.

2.05 SIDEWALKS:

A. Sidewalks shall conform to the requirements of NHDOT Standard Specifications 608, Items
608.12 or Item 608.24 as detailed on the plans..

2.06 PAVEMENT MARKINGS:

A. Pavement markings shall conform to the requirements of NHDOT Standard Specifications
632, and shall be considered incidental to the pavement items of work.

B. The mixture of the marking material shall be within the composition limits for reflectorized
pavement markings as described in the NHDOT Standard Specifications.

PART3 EXECUTION

3.01 GENERAL: