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SECTION 03310
CONCRETE COATINGS
PART 1 - GENERAL
1.1 SUMMARY

A. This specification is for the coating to be used for the concrete within the
sump riser building and the interior surfaces of the concrete manholes.

1.2 QUALITY ASSURANCE

A. CONTRACTOR qualifications: CONTRACTOR shall be qualified in the field of
concrete repair and protection with a successful track record of 5 years or
more. CONTRACTOR shall maintain qualified personnel who have received
product training by a manufacturer’s representative.

B. CONTRACTOR shall install materials in accordance with all manufacturer
safety and weather requirements or as modified by applicable rules and
regulations of local, state and federal authorities having jurisdiction.
Consult Safety Data Sheets (SDS) for complete handling recommendations.

1.3. DELIVERY, STORAGE, AND HANDLING

A. All materials must be delivered in original, unopened containers with the
manufacturer’s name, labels, product identification, and batch numbers.
Damaged material must be removed from the site immediately.

B. Store all materials off the ground and protect from rain, freezing or
excessive heat until ready for use.

C. Condition the specified product as recommended by the manufacturer.
1.4 CONDITIONS
A. Environmental Conditions: Do not apply material if it is raining or snowing
or if such conditions appear to be imminent. A minimum application

temperature of 40 degrees (°) Fahrenheit (F) and rising is required.

B. Protection: Precautions should be taken to avoid damage to any surface
near the work zone due to mixing and handling of the specified material.

1.5 SUBMITTALS

A. Submit copies of manufacturer’s literature to ENGINEER at least 7 days prior
to delivery to the site, including Product Data Sheets and appropriate SDS.

File No. 3066.09 Concrete Coatings 03310 - 1 of 3 December 2017

1.64 © WARRANTY

A. Provide a written warranty from the manufacturer against defects of
materials for a period of five (5) years, beginning with date of substantial
completion of the project.

PART 2 - PRODUCTS

2.1 EPOXY RESIN COATING

A. Sikagard 62, as manufactured by Sika Corporation. No substitutions will be
allowed.

B. Granules for slip-resistance shall be supplied by the manufacturer of the
specified product and shall be able to be mixed into the coating and shall
not settle during application. Granules shall be used for the floor coating of
the sump riser building.

C. Color - Grey.

PART 3 - EXECUTION

3.1 SURFACE PREPARATION

A.

Substrate must be clean, sound, and free of surface contaminants. Remove
dust, laitance, grease, oils, curing compounds, form release agents and all
foreign particles by mechanical means. Substrate shall be in accordance with
International Concrete Repair Institute (ICRI) Guideline No. 310.2 for
coatings.

3.2 MIXING AND APPLICATION

A.

Mixing: Premix each component. Proportion equal parts by volume of
Component A and Component B into a clean, dry mixing pail. Mix
thoroughly for at least 3 minutes with a Sika paddle on a low-speed (400-
600 rpm) drill. Mix only that quantity of material that can be used within its
pot life (35 minutes at 73°F). To minimize color difference, blend two
complete Component Bs together. Use only one of the blended Component
Bs to mix with Component A. After the first Component B has been used,
blend the second Component B with a new Component B and repeat the
above procedure for the entire application.

Placement Procedure: The epoxy resin coating shall be applied only to
approved, prepared surfaces with high-quality brushes, rollers, or spray
equipment. Coating shall be applied at ambient and substrate temperatures
between 50 and 90° F. Application thickness shall be between 4 and 7 mils
per coat. Subsequent coats shall be applied within 48 hours of the previous

File No. 3066.09

Concrete Coatings 03310 - 2 of 3 December 2017

19.

20.

Professional Engineer agrees to assist disadvantaged business enterprises in obtaining business
opportunities by identifying and encouraging disadvantaged suppliers, consultants, and sub
consultants to participate to the extent possible, consistent with their qualification, quality of work,
and obligation of Professional Engineer under this contract.

In connection with the performance of work under this contract, Professional Engineer agrees not
to discriminate against any employee or applicant for employment because of race, creed, color,
national origin, sex, age, or sexual orientation. This agreement includes, but is not limited to, the
following: employment, upgrading, demotion or transfer, recruitment or recruitment advertising,
layoff or termination, rates of pay or other forms of compensation, and selection for training,
including apprenticeship.

Professional Engineer agrees, if applicable, to insert these provisions in all subcontracts, except for
subcontracts for standard commercial supplies or raw materials. Any violation of any applicable
provision by Professional Engineer shall constitute a material breach of the contract.

. ENDORSEMENT Professional Engineer shall seal and/or stamp and sign professional documents

including drawings, plans. maps, reports, specifications, and other instruments of service prepared
by Professional Engineer or under its direction as required under the laws of the State of New

Hampshire.

. ASSIGNMENT, TRANSFER, DELEGATION, OR SUBCONTRACTING Professional Engineer shall not

assign, transfer, delegate, or subcontract any rights, obligations, or duties under this contract
without the prior written consent of the City of Nashua. Any such assignment, transfer, delegation,
or subcontracting without the prior written consent of the City of Nashua is void. Any consent of
the City of Nashua to any assignment, transfer, delegation, or subcontracting shall only apply to
the incidents expressed and provided for in the written consent and shall not be deemed to be a
consent to any subsequent assignment, transfer, delegation, or subcontracting. Any such
assignment, transfer, delegation, or subcontract shall require compliance with or shall incorporate
all terms and conditions set forth in this agreement, including all incorporated Exhibits and written
amendments or modifications. Subject to the foregoing provisions, the contract inures to the benefit
of, and is binding upon, the successors and assigns of the parties.

CITY INSPECTION OF CONTRACT MATERIALS The books, records, documents and accounting
procedures and practices of Professional Engineer related to this contract shall be subject to
inspection, examination and audit by the City of Nashua, including, but not limited to, the
contracting agency, Corporation Counsel, and, if applicable, the Comptroller General of the United
States, or any authorized representative of those entities.

DISPOSITION OF CONTRACT MATERIALS Any books, reports, studies, photographs, negatives or
other documents, data, drawings or other materials, including but not limited to those contained in
media of any sort (e.g., electronic, magnetic, digital} prepared by or supplied to Professional
Engineer in the performance of its obligations under this contract shall be the exclusive property of
the City of Nashua and all such materials shall be remitted and delivered, at Professional Engineer's
expense, by Professional Engineer to the City of Nashua upon completion, termination, or
cancellation of this contract. Alternatively, if the City of Nashua provides its written approval to
Professional Engineer, any books, reports, studies, photographs, negatives or other documents,
data, drawings or other materials including but not limited to those contained in media of any sort
(e.g., electronic, magnetic, digital) prepared by or supplied to Professional Engineer tn the
performance of its obligations under this contract must be retained by Professional Engineer for a
minimum of four years after final payment is made and all other pending matters are closed. If, at
any time during the retention period, the City of Nashua, in writing, requests any or all of the
materials, then Professional Engineer shall promptly remit and deliver the materials, at Professional

GC 8 of #1

coat. Care is to be taken on vertical and overhead surfaces to avoid sags or
runs. If this occurs, it must be sanded out and the area re-coated. If coating
of horizontal surfaces that will receive traffic is specified, a slip-resistant
aggregate, Sikagard 62 Granules, shall be incorporated into the mixed epoxy
resin coating at % lb/gallon.

When applying the coating, if possible never stop the application until the
entire surface has been coated. If possible always discontinue at an edge,
corner, or joint. Never let a previously coated film dry. Always coat into wet
film. Always apply the coating at a 45° angle to an edge, corner, or joint.

Adhere to all limitations and cautions for the epoxy resin as stated in the
manufacturers printed literature.

3.3. CLEANING

A. The uncured epoxy resin coating can be cleaned from tools with an approved
solvent. The cured epoxy resin coating can only be removed mechanically.

B. Leave finished work and work area in a neat, clean condition without evidence
of spillovers onto adjacent areas.

[END OF SECTION 03310]

P:\3000s\3066.09\Source Files\Type II App\Specifications\ Division 3 Specifications\03310 Concrete Coatings.docx

File No. 3066.09

Concrete Coatings 03310 - 3 of 3 December 2017

SECTION 03400
PRE-CAST CONCRETE STRUCTURES
PART 1 - GENERAL
1.1. SCOPE OF WORK

A. CONTRACTOR shall furnish all materials, labor, tools and appurtenances
required to complete the pre-cast structures as described herein and/or
shown on the Drawings.

1.2 DESIGN REQUIREMENTS

A. Pre-cast concrete structures shall be constructed of specified materials to the
sizes, shapes and dimensions and at the locations shown on the Drawings or as
otherwise directed by ENGINEER. The height or depth of the structures will vary
with the location, but unless shown otherwise on the Drawings, shall be such that
the inverts and top of the structure will be at the designed elevations.

1.3. SUBMITTALS

A. Complete shop drawings and engineering data on frames, covers, valves (if
indicated on the Drawings), trash racks (if indicated on the Drawings), and the
pre-cast concrete structures themselves at least 10 days prior to fabrication.

B. CONTRACTOR shall submit detailed drawings showing layout of components and
openings within pre-cast concrete structures. The pre-cast concrete structures
shall have dimensional callouts and show:

1. __ wall penetrations;

2. piping; and

3. manway openings/covers including fastening and sealing mechanism, as
applicable.

C. Separate submittals for the equipment to be installed or mounted on structures
shall be submitted at same time as submittals related to precast concrete
structures as described in above paragraphs.

1.4 QUALITY ASSURANCE

A. After delivery to the site, any materials that have been damaged in transit or are
otherwise unsuitable for use in the Work shall be rejected and removed from the
site at no cost to OWNER.

File No. 3066.09 Pre-Cast Concrete Structures 03400 - 1 of 3 December 2017

PART 2 - PRODUCTS

2.1 MATERIALS AND CONSTRUCTION

A. Concrete and Reinforcement

1.
2.

Concrete used in construction of the structures shall be Class “AA” concrete.
Reinforcing steel bars shall be deformed new billet steel conforming to
ASTM A615, Grade 60. Wire fabric shall be cold drawn steel conforming to
ASTM A185.

B. Mortar: Mortar for manhole construction shall be sand-cement mortar
composed of one part Portland cement to two parts clean sand conforming to
ASTM C144.

C._‘Pre-cast Concrete Structures

1.

2.

3.

Pre-cast concrete structures shall consist of pre-cast reinforced concrete
sections conforming to the details as shown on the Drawings.

Pre-cast concrete sections shall be manufactured, tested and marked in
accordance with the latest provisions of ASTM C478.

The minimum 28-day compressive strength of the concrete for all sections
shall be 4,000 psi.

The maximum allowable absorption of the concrete shall not exceed eight
percent of the dry weight.

The circumferential reinforcement in the riser sections, conical top sections
and base wall sections shall consist of one line of steel and shall be not less
than 0.17 square inch per lineal foot.

The ends of each reinforced concrete manhole riser section and the bottom
end of the manhole top section shall be so formed that when the manhole
risers and the top are assembled, they will make a continuous and uniform
manhole.

Unless otherwise approved by ENGINEER, joints of the manhole sections
shall be of the tongue and groove type. Sections shall be joined using
rubber gaskets conforming to the applicable provisions of ASTM C443,
latest revision, or filled with an approved preformed plastic gasket meeting
the requirements of Federal Specifications SS-S-00210, “Sealing Compound,
Preformed Plastic for Pipe Joints,” Type 1, Rope Form.

Each section of the pre-cast structures shall have no more than two holes
for the purpose of handling and laying. These holes shall be tapered and
shall be plugged with rubber stoppers or mortar after installation.

D. Frames and Covers

1.

Manway frames, covers and grates shall be of the size and in the location
shown on the Drawings or equivalent approved by ENGINEER. Where
specified, the frame and cover shall be ductile iron, easily removable, and
equipped with handles.

File No. 3066.09

Pre-Cast Concrete Structures 03400 - 2 of 3 December 2017

2. Solid manway covers shall be labeled with 3-inch high letters in the center
of the covers. Structures associated with the leachate management system,
electrical system, and stormwater management system shall be stamped
“SEWER’, “ELECTRIC”, and “DRAIN”, respectively.

E. Wall Penetration Seal

1. Wall penetration seal for Pre-Cast Concrete structures shall be CDS Sealing
Systems or equivalent approved by ENGINEER.

2. Wall penetration seal shall be certified by the Manufacturer to be
compatible between the approved pre-cast concrete structure and piping to
provide a watertight seal when installed in accordance with the
Manufacturer’s installation procedures.

PART 3 - EXECUTION
3.1 © CONSTRUCTION OF PRE-CAST CONCRETE STRUCTURES

A. Place 1¥%-inches of crushed stone to the thickness shown on the Drawings prior
to installing the structure for level bedding.

B. After the base section has been set, the pre-cast sections shall be placed thereon,
with care being exercised to install the incoming and outgoing pipes into the wall

of the structure at the required elevations.

C. Where called for, the cast iron frame for the cover shall be set at the required
elevation and properly anchored to the masonry as depicted on the Drawings.

D. Trash racks and valves (if indicated on the Drawings) shall be installed in
accordance with the manufacturer’s recommendations.

[END OF SECTION 03400]

P:\3000s\3066.09\Source Files\Type II App\Specifications\ Division 3 Specifications\03400 Pre-Cast Concrete Structures.docx

File No, 3066.09 Pre-Cast Concrete Structures 03400 - 3 of 3 December 2017

CONTENTS

DIVISION 6 - WOOD AND PLASTIC

Section 06210 - Wood Framing and Insulation

SANBORN i HEAD

SECTION 06210

WOOD FRAMING AND INSULATION

PART 1 - GENERAL

1.1

1.2

1.3

1.4

SCOPE

A.

Section includes:

1. Wood products used for the sump riser building and panel boards.
2. Fasteners.

3. Ceiling insulation.

SUBMITTALS

A.

CONTRACTOR shall submit to the ENGINEER shop drawings for the proposed
Sump Riser Building stamped by a Professional Engineering licensed to practice
structural engineering in the State of New Hampshire that depict the foundation,
block masonry, reinforcement, wood framing, insulation, and other elements
required for a complete construction.

CONTRACTOR shall submit to the ENGINEER information for proposed
appurtenances, including but not limited to, leveling slate and steel shims,
expansion bolts, threaded studs, non-shrink cement mortar, plate washers and
nuts, and pressure treated members for sills.

DELIVERY, STORAGE AND HANDLING

A.

Deliver lumber, plywood, trim, and millwork to the job site in an undamaged
condition.

Stack materials to ensure ventilation and drainage. Protect against dampness
before and after delivery.

Store materials under cover in a well-ventilated enclosure and protect against
extreme changes in temperature and humidity. Do not store products in the
sump riser building.

PERMITS

A.

CONTRACTOR is responsible for retaining a structural engineer to design the
sump riser building in accordance with applicable building regulations.

CONTRACTOR shall obtain all local building and other permits required prior to
construction implementation.

File No. 3066.09 Wood Framing and Insulation 06210 - 1 of 6 December 2017

PART 2 - PRODUCTS

2.1

FRAMING MATERIALS

A.

Framing Lumber

1. Douglas Fir, No. 2; Southern Pine, medium grain, No. 2; or other lumber
product having allowable unit stresses not less than 575 psi unit stress in
bending (Fb) with 1,400,000 psi modulus of elasticity (E). Framing lumber
not carrying calculated stresses shall be WCLB Stud Grade Douglas Fir,
Southern Pine, or better.

2. Nominal Framing Member Sizes

a. Studs: 2 by 4
b. Rafters: 2 by 6
c. Plates: 2by8

Trim, finish, and frames shall be Southern Pine, Ponderosa Pine, White Pine, or
Douglas Fir, Grade C in accordance with WCLB

Exterior Siding: Vinyl siding style and color to be selected by Owner.

Sheathing

1. Shall conform to Product Standard PS 1-66, graded by American Plywood
Association. Place with 1/16-inch clearance at end joints, %-inch clearance
at side joints.

2. Building/panel board interior mounting walls shall be %-inch thick A-C

plywood.
3. Roof sheathing shall be %-inch thick CDX.

Markings

1. Each piece or each bundle of lumber, millwork, and trim shall be identified by
the grade mark of a recognized association or independent inspection agency
that is certified by the Board of Review, American Lumber Standards
Committee, to grade the species.

2. Each sheet of plywood shall bear the mark of a recognized association or
independent inspection agency that maintains continuing control over the
quality of the plywood. The mark shall identify the plywood by species group
or span rating, and shall show exposure durability classification, grade, and
compliance with PS 1.

3. Each treated piece shall be inspected in accordance with AWPA M2 and
permanently marked or branded by the producer in accordance with AWPA
M6, except that lumber which is smaller than 2 by 4 inches or shorter than 36
inches and bundled may be marked on outer faces only.

Moisture Content of Wood Products

1. Furnish air-dry or kiln-dry lumber.

2. The maximum moisture content of wood products at time of delivery to the
job site shall be as follows:

File No. 3066.09 Wood Framing and Insulation 06210 - 2 of 6 December 2017