section 321373 - compression joint sealants for rigid pavement

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29 Νοε 2013 (πριν από 3 χρόνια και 8 μήνες)

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11/29/2013

COMPRESSION JOINT SEALANTS FOR RIGID PAVEMENT

C:
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FILES
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NEEVIA.COM
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DOCCONVERTERPRO
\
TEMP
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NVDC
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506
1B836
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403E
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AACF70C6100C
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BULGEFETA_29A93977
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4148
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A2FB
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84E479CD995A.DOC

321373
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1


This master should be used by designers working on Port of Portland construction projects and by designers working for PDX
tenants (“Tenants”). Usage notes highlight a few specific editing choices, however the entire section should be evaluated an
d
edited

to fit specific project needs.

SECTION
321373



COMPRESSION JOINT SEAL
ANTS

FOR RIGID PAVEMENT

PART 1
-

GENERAL

1.1

DESCRIPTION

A.

This section describes sealing expansion and contraction joints within rigid (portland cement
concrete) pavement using compression seals.

1.2

REL
ATED WORK SPECIFIED ELSEWHERE

A.

Section
321300
, Portland Cement Concrete Paving

1.3

REFERENCE
S

A.

ASTM: American Society for Testing and Materials

1.

ASTM D2628: Standard Specification for Preformed Polychloroprene Elastomeric Joint
Seals for Concrete Pavements

2.

ASTM
D2835: Standard Specification for Lubricant for Installation of Preformed
Compression Seals in Concrete Pavements

B.

CRD:
U.S. Army Corps of Engineers
Concrete Research Division

1.

CRD C548: Handbook for Concrete and Cement Standard Specification for Jet
-
Fuel a
nd
Heat
-
Resistant Preformed Polychloroprene Elastomeric Joints Seals for Rigid Pavement

1.4

SUBMITTALS

A.

Submit the following:

1.

Product data and test reports for each joint sealant product to be used. Include a written
certification from the manufacturer that se
al and lubricant/adhesive selected are
recommended for the installation involved.

2.

Samples of the material to be used in order to verify type.

3.

Manufacturer’s instructions when installation procedures, or any part thereof, are
required to be in accordance
with the manufacturer’s
instructions
. Installation will not be
allowed until the
instructions

are received. Failure to furnish these
instructions

can be
cause for rejection of the material.

4.

List of all construction equipment to be used in the performance

of the work.

1.5

TEST REQUIREMENTS



COMPRESSION JOINT SEALANTS FOR RIGID PAVEMENT

11/29/2013

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2

C:
\
PROGRAM
FILES
\
NEEVIA.COM
\
DOCCONVERTERPRO
\
TEMP
\
NVDC
\
50
61B836
-
59B5
-
403E
-
ABF2
-
AACF70C6100C
\
BULGEFETA_29A93977
-
4148
-
4A01
-
A2FB
-
84E479CD995A.DOC


A.

Sample, identify, and test for conformance with applicable material specification, each lot of
preformed joint seal and lubricant/adhesive produced for this project.

B.

A lot of preformed seal shall consist of one day’s product
ion or 20,000 linear feet for each cross
section, whichever is less. A lot of lubricant/adhesive shall be one day’s production.

C.

T
est seal(s) and lubricant/adhesive in an approved independent laboratory at no
additional
cost
to the Port.

1.6

DELIVERY, STORAGE,

AND HANDLING

A.

Deliver material to the work site in original unopened containers or bundles with labels
indicating manufacturer, product name, and designation.

B.

Store and handle materials to comply with manufacturer’s written instructions to prevent their
de
terioration or damage due to moisture, high or low temperatures, contaminants, or other
causes.

1.7

QUALITY ASSURANCE

A.

Equipment:

1.

Inspect equipment to assure uniform application of lubricant/adhesive to the sides of joint
seal or the walls of joint.

2.

If any equi
pment causes cutting, twisting, nicking, excessive stretching or compressing of
the seal, or improper application of the lubricant/adhesive, suspend operation until causes
of the deficiencies can be determine
d

and corrected.

B.

Procedures:

1.

Provide quality con
trol provisions during joint cleaning process to ensure that equipment
and/or cleaning techniques do not damage the concrete. Cleaned joints shall be approved
by the Port prior to installation of the lubricant/adhesive and preformed joint seal.

2.

Determine
conformance to stretching and compression limitations. After installation,
measure distance between marks and if stretching or compression exceeds specified
limits, remove seal to the last correct measurement.

3.

Measure to determine conformance with depth a
nd width installation requirements.

4.

Remove all preformed seal
s

not in conformance with specification requirements and
replace with new joint seal
s

at no additional cost to the Port.

C.

Product:

1.

Inspect joint sealing system (preformed seal and lubricant/adhesi
ve) for proper rate of
cure and bonding to the concrete, cuts, twists, nicks, and other deficiencies.

2.

Remove
waste
from joint and replace seals exhibiting any defects prior to final
acceptance.



11/29/2013

COMPRESSION JOINT SEALANTS FOR RIGID PAVEMENT

C:
\
PROGRAM
FILES
\
NEEVIA.COM
\
DOCCONVERTERPRO
\
TEMP
\
NVDC
\
506
1B836
-
59B5
-
403E
-
ABF2
-
AACF70C6100C
\
BULGEFETA_29A93977
-
4148
-
4A01
-
A2FB
-
84E479CD995A.DOC

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3


PART 2
-

PRODUCTS

2.1

PREFORMED SEALS

A.

Preformed seals s
hall be a vulcanized

elastromeric compound using polychloroprene as the only
base polymer.

B.

The material and manufactur
ed seal shall conform to ASTM D
2628 and CRD C 548.

C.

Joint seal shall be a labyrinth type seal with the uncompressed depth of the seal greater than the
uncompre
ssed width of the seal. Actual width shall be 13/16 inch or 1 inch with a tolerance of
plus 1/8 inch and minus 1/16 inch.

2.2

LUBRICANT/ADHESIVE

A.

Lubricant/adhesive s
hall be a one
-
componen
t compound conforming to ASTM D
2835.

2.3

EQUIPMENT

A.

Concrete Saw
:

1.

Provide a s
elf
-
propelled power saw with water
-
cooled diamond or abrasive saw blades.

2.

Saw shall be capable of cutting joints to the depths and widths specified and have the
ability to remove filler, existing old joint seal, or other material embedded in joint or
adher
ing to joint face.

B.

Sandblasting Equipment
:

1.

Provide

an air compressor, hose, and a long
-
wearing venture
-
type nozzle of proper size,
shape, and opening. Maximum nozzle opening should not exceed 1/4 inch.

2.

Air compressor shall be portable and capable of furni
shing not less than 150 cubic feet
per minute and maintaining a line pressure of not less than 90 psi at the nozzle while in
use. Equip compressor with traps to keep compressed air free of oil and water.

3.

Nozzle shall have an adjustable guide that will hol
d nozzle aligned with the joint about
1

inch above the pavement surface and will direct the blast to clean joint walls. Height,
angle of inclination, and size of nozzle shall be adjusted as necessary to ensure
satisfactory results.

C.

Waterblasting Equipment
:

1.

Provide

a trailer
-
mounted water tank, pumps, high
-
pressure hose, a wand with safety
release cutoff controls, nozzle, auxiliary water re
-
supply equipment, and a vacuum
sweeper.

2.

Water tank and auxiliary water re
-
supply equipment shall be sufficient capacit
y to permit
continuous operations.

3.

Pumps, hoses, wand, and nozzle shall be of sufficient capacity to permit the cleaning of
both walls of the joint and the pavement surface for a width of at least 1/2 inch on either
side of joint.



COMPRESSION JOINT SEALANTS FOR RIGID PAVEMENT

11/29/2013

321373
-
4

C:
\
PROGRAM
FILES
\
NEEVIA.COM
\
DOCCONVERTERPRO
\
TEMP
\
NVDC
\
50
61B836
-
59B5
-
403E
-
ABF2
-
AACF70C6100C
\
BULGEFETA_29A93977
-
4148
-
4A01
-
A2FB
-
84E479CD995A.DOC


4.

Pump shall be capable of
supplying a pressure of at least 3,000 psi. Mount a pressure
gauge to show, at all times, the pressure, in pounds per square inch, at which equipment
is operating.

D.

Sealing Equipment
:

1.

Provide

an engine powered, automatic self
-
propelled joint seal applicati
on machine.

2.

Equipment used to install preformed seal shall have the capability to place seal to the
prescribed depths within the specified tolerances without cutting, nicking, t
wisting, or
otherwise damaging s
eal.

3.

Equipment shall not stretch or compress se
al more than 1.5 percent longitudinally during
installation.

4.

Include a reservoir for lubricant/adhesive, a device for conveying lubricant/adhesive in
proper quantities to the sides of seal or the sidewalls of joint, a reel capable of holding
one full spool

of preformed seal, and a power
-
driven apparatus for feeding joint seal
through a compression device and inserting seal into the joint.

5.

Provide

a guide to maintain proper course along the joint being sealed.

6.

Equipment shall be operated by an experienced op
erator at all times.

PART 3
-

EXECUTION

3.1

EXAMINATION

A.

Examine joints indicated to receive joint seal for compliance with requirements for joint
configuration, installation tolerances, and other conditions affecting joint seal performance.

B.

Proceed only after unsatisfa
ctory conditions have been corrected.

3.2

ENVIRONMENTAL CONDITIONS

A.

The ambient temperature and the pavement temperature within the joint wall shall be at least
35
°
F and rising at the time of installation of the materials.

B.

Sealant application will not be permit
ted if moisture or any foreign material is observed in the
joint.

3.3

TEST SECTION

A.

Prior to sealing the joints for the entire project, prepare a test section at least 200

feet long at a
location within the project that is acceptable to the Port.

B.

Test section s
hall utilize specified materials and approved equipment.



11/29/2013

COMPRESSION JOINT SEALANTS FOR RIGID PAVEMENT

C:
\
PROGRAM
FILES
\
NEEVIA.COM
\
DOCCONVERTERPRO
\
TEMP
\
NVDC
\
506
1B836
-
59B5
-
403E
-
ABF2
-
AACF70C6100C
\
BULGEFETA_29A93977
-
4148
-
4A01
-
A2FB
-
84E479CD995A.DOC

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C.

Materials and installation
s

that meet specification requirements may be incorporated into the
permanent work
. Remove
materials or installation
s

that do not meet requirements and
re
-
clean
and reseal
joint

at no

additional

cost to the Port.

3.4

JOINT PREPARATION

A.

Cleaning
:

1.

Thoroughly clean joint to remove all laitance, filler, old existing sealant, foreign material
and protrusions of hardened concrete from the sides and upper edges of the joint space to
be

sealed. Joints may be cleaned

either

by sandblasting or waterblasting.

2.

Correct any irregularity in the joint face which would prevent uniform contact between
joint seal and joint face.

3.

Collect all removed laitance, filler, sealant, foreign material, and
concrete protrusions and
properly dispose of off Port property.

4.

Limit sandblasting or waterblasting of joint faces to the amount of linear footage that can
be sealed during the same workday.

B.

Sawing
:

1.

Saw joints to clean and to open them to the full specifie
d width and depth. Center saw
cut over the joint line.

2.

Using a water jet, thoroughly clean joint faces to remove all saw cutting or any debris
remaining on the faces or in the joint opening.

3.

Install seal within 3 calendar days of the time the individual j
oint cavity is sawed unless
otherwise approved by the Port.

4.

Saw depth shall be between 3/4 and 1 inch deeper than the uncompressed depth of the
seal.

5.

Nominal width, within a tolerance of plus or minus 1/16 inch, of sawed seal cavity shall
be:

a.

For a nominal

13/16
-
inch
-
wide compression seal, the nominal saw cut width shall
be 1/2 inch. (This applies when pavement temperature at time of sawing is
between 35 and 80
°
F. If pavement temperature, at time of sawing, is above 80
°
F,
decrease nominal saw cut width by

1/16 inch. If pavement temperature, at time of
sawing, is below 35
°
F, increase nominal saw cut width by 1/16 inch.)

b.

For a nominal 1
-
inch
-
wide compression seal, the nominal saw cut width shall be
9/16 inch. (This applies when pavement temperature at time

of sawing is between
35 and 140
°
F. If pavement temperature, at time of sawing, is below 35
°
F, increase
nominal saw cut width by 1/16 inch.)

6.

Measure pavement temperature in the presence of the Port. Measurement shall be made
each day before commencing sa
wing and any other time during the day when
temperature appears
to be
moving out of allowable sawing range.

C.

Sandblast Cleaning
:

1.

Sandblast clean all concrete joint faces and pavement surfaces extending at least 1/2 inch
from the joint edges.

2.

Use multiple p
asses to ensure the surfaces are free of dust, direct curing compound, or
any residue that may prevent ready insertion or uniform contact of the seal and bonding
of the lubricant/adhesive to the concrete.



COMPRESSION JOINT SEALANTS FOR RIGID PAVEMENT

11/29/2013

321373
-
6

C:
\
PROGRAM
FILES
\
NEEVIA.COM
\
DOCCONVERTERPRO
\
TEMP
\
NVDC
\
50
61B836
-
59B5
-
403E
-
ABF2
-
AACF70C6100C
\
BULGEFETA_29A93977
-
4148
-
4A01
-
A2FB
-
84E479CD995A.DOC


3.

After final cleaning and immediately prior to seali
ng, blow out joints with compressed air
and leave completely free of debris and water.

D.

Waterblast Cleaning
:

1.

Waterblast clean all concrete joint faces and pavement
surfaces extending at least
1/2

inch from the joint edges.

2.

Use multiple passes to ensure the
surfaces are free of dust, direct curing compound, or
any residue that may prevent ready insertion or uniform contact of the seal and bonding
of the lubricant/adhesive to the concrete.

3.

Vacuum joint area to remove any residue.

4.

After final cleaning and immed
iately prior to sealing, blow out joints with compressed air
and leave completely free of debris and water.

3.5

INSTALLATION OF PREFORMED SEAL

A.

Time of Installation
:

1.

Seal within 3 calendar days of sawing seal cavity and immediately following concrete
cure and f
inal cleaning of joint walls.

2.

Provide an approved temporary seal to prevent infiltration of foreign material if prepared
open joint cannot be sealed by the end of workday.

3.

If sealing operations are interrupted by rain, wash joints, clean with air pressure
and
allow to dry prior to installing lubricant/adhesive and seal.

B.

Installation Sequence
:

1.

Seal longitudinal joint first, followed by transverse joints, and then all other joints.

2.

Cut seals in longitudinal joints to allow transverse joints to be intact from
edge to edge of
pavement.

3.

Make intersections monolithic by use of joint seal adhesive and
take
care in fitting
intersection parts together. Remove and replace any seal falling short of the intersection
at no
additional
cost to the Port.

C.

Installation Proce
dure
:

1.

Install using specified equipment.

2.

Cover sides of the joint seal or the sides of the joint with a coating of lubricant/adhesive
and install seal
in accordance with the

manufacturer’s
instructions
.

3.

Coat butt joints and seal intersections with a libera
l application of lubricant/adhesive.

4.

Immediately remove any lubricant/adhesive spilled on the pavement to prevent setting on
pavement surface.

5.

The in
-
place seal shall be in an upright position and free from twisting, distortion, cuts,
and stretching or com
pression in excess of 3 percent.

6.

Place seal at a uniform depth of 3/16 inch, plus or minus 1/8 inch, below the pavement
surface except when the joint is beveled or has a radius at the surface, or
as
otherwise
directed by the Port. Beveled joints or joints

with a radius at the surface shall have seal
placed to a depth of 1/8 inch, plus or minus 1/8 inch, below the bottom of the edge of the
bevel or radius. No part of the seal may project above the pavement surface or above the
edge of bevel or radius.

7.

Inst
all seal in the longest practical lengths.



11/29/2013

COMPRESSION JOINT SEALANTS FOR RIGID PAVEMENT

C:
\
PROGRAM
FILES
\
NEEVIA.COM
\
DOCCONVERTERPRO
\
TEMP
\
NVDC
\
506
1B836
-
59B5
-
403E
-
ABF2
-
AACF70C6100C
\
BULGEFETA_29A93977
-
4148
-
4A01
-
A2FB
-
84E479CD995A.DOC

321373
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8.

Allow lubricant/adhesive to set for 1 hour prior to cutting at a joint intersection to reduce
the possibility of shrinkage.

3.6

CLEANUP

A.

Upon
substantial
completion of
the
project, remove all unused materials from th
e site, remove
any lubricant/adhesive on the pavement surface, and leave pavement in clean condition.

END OF SECTION
321373