MANUFACTURER'S GUIDE SPECIFICATION: DSF by EMSEAL
SECTION 07 90 00 and 07 95 00 (formerly 05810 / 07102 / 07915)--
SEALANTS, CAULKING, & SEALS
DSF SYSTEM, NSF
Standard-61 Silicone-Coated, Structural Expansion Joint Seal
The
following contains a short-form guide spec as well as a
comprehensive performance spec for use at the specifier’s option.
Please call EMSEAL with any questions. Toll Free: 800-526-8365 or
508-836-0280. Email:
techinfo@emseal.com
***CRITICAL ADDITION TO
DIVISION 3—CONCRETE. Note to specifier: To facilitate successful
expansion joint installation, follow the link below and include the
proposed language in Division 3***
General Contractor
Expansion Joint Responsibilities
[.rtf]
***SHORT-FORM
GUIDE SPECIFICATION***
Application:
Where expansion joint systems contact potable water or
are in contact withfood items.
Basis of Design:
DSF SYSTEM
EMSEAL JOINT
SYSTEMS, LTD, 25 Bridle Lane Westborough, MA 01581-2603, Toll Free:
800-526-8365 or PH: 508-836-0280, FX: 508-836-0281,
www.emseal.com.
CANADA: EMSEAL CORPORATION, 120 Carrier Drive, Toronto, Ontario,
Canada, M9W 5RI Toll Free: 800-526-8365 or PH: 416-740-2090, FX:
416-740-0233,
www.emseal.com
Basis of Design:
DSF SYSTEM – Silicone-bellows-coated, microsphere-modified-acrylic
impregnated precompressed joint sealant for expansion joints and
isolation joints in applications where continuous or intermittent
contact with potable water or ingested solids is expected. Typical
locations include, but are not limited to the following:
applications for joints in water storage tanks, potable water
containers, spill guards, and food storage areas. System shall
remain watertight under various pressures resulting from
corresponding liquid head pressure and shall accommodate movement at
the joint from thermal cycling.
Sealant system
shall be comprised of three components: 1) microsphere-modified,
100% acrylic impregnated foam factory-coated on the contact surface
with NSF Standard-61 Compliant silicone sealant; 2) field-applied
epoxy adhesive, 3) field-injected silicone sealant bands.
Impregnation agent to have proven non-migratory characteristics.
Silicone coating to be applied to the impregnated foam sealant at a
width greater than maximum allowable joint extension and when cured
and compressed will form a bellows. Product must be proved to have
been tested under simulated head pressure testing in a suitable
testing assembly, to be capable of resisting indefinitely the
required depth of positive liquid head pressure. Material shall be
capable of movements of +25%, -25% (50% total) of nominal material
size. Nominal material size to match field-measured joint size at
mean-temperature or must
be adjusted for mean temperature.
Depth of seal to manufacturer's standard.
Installation:
Sides of concrete or other substrate on the joint faces are to be
coated using manufacturer's supplied epoxy. DSF foam seal to be
installed into manufacturer-supplied field-applied epoxy adhesive.
The DSF SYSTEM is to be installed slightly recessed from the surface
such that when the field-applied injection band of silicone sealant
is installed between the substrates and the
foam-and-silicone-bellows, the system will be essentially flush with
the substrate surface. Joins between lengths of material to be
joined using a field-application of manufacturer-supplied liquid
silicone at the adjoining bellows. Any exposed foam ends must be
covered in the field with a skim-coat of the manufacturer supplied
liquid silicone sealant.
Manufacturer-supplied silicone sealant to be shipped in 1.5 gallon
kits in two components. The full 1.5 gallon kit must be mixed and
the mixed sealant drawn up into a bulk gun from which it will be
dispensed. The working time on a mixed kit is about 1 hour at
70-deg F. (21-deg C). Some wastage should be expected and extra kits
may need to be ordered by the applicator depending on the total
quantity, temperature at time of installation and staging of the
work.
Factory-fabricated universal-90-degree termination and transition
units shall be used to terminate all joints into vertical plane
surfaces (walls, parapets, ends of decks, etc) as well as to
transition the material through curbs, or other in-slab plane
changes. Universal-90-degree termination and
transition pieces to be single units containing
minimum 12-inch long leg and 6-inch long leg on each side of the
direction change respectively. Both the top and bottom surfaces of
the entire unit to be continuously coated with the silicone bellows.
Termination pieces to have the top of the 6-inch leg factory-mitered
and bellows-coated at 45-degrees to provide a transition point to
vertical-grade materials, or when installed as a downturn
termination at deck edges to act as a drip edge. Factory-fabricated
units to be field-joined to straight lengths in accordance with
manufacturer’s prescribed methods and supplied joining materials.
All substitute
candidates in addition to demonstrating in writing the testing used
to determine the material's ability to withstand specified liquid
head pressure,,,
shall provide certification in writing to be free in composition of
any waxes or asphalts, wax compounds or asphalt compounds. All
substitute candidates shall be certified in writing to be: a)
capable of withstanding 150°F (65°C) for 3 hours while compressed
down to the minimum of movement capability dimension of the basis of
design product (-25% of nominal material size) without evidence of
any bleeding of impregnation medium from the material; and b) that
the same material after the heat stability test will self-expand to
the maximum of movement capability dimension of the basis-of-design
product (+25% of nominal material size) within 24 hours at room
temperature 68°F (20°C).
***END OF
SHORT-FORM GUIDE SPECIFICATION***
***COMPLETE
GUIDE SPECIFICATION***
SECTION 07 90 00
and 07 95 00 (formerly 05810 / 07102 / 07915)-- SEALANTS, CAULKING,
& SEALS
Application: Where expansion joint
systems contact purified or potable water or ingestible food
items. DSF SYSTEM
NSF/ANSI Standard-61 Compliant / NSF
Standard-51 Compliant / FDA Regulation CFR 177.2600
Compliant
Silicone-Coated,
Structural Expansion Joint Seal
PART 1 – GENERAL
1.01
RELATED DOCUMENTS
A. The requirements of the GENERAL CONDITIONS,
SUPPLEMENTARY CONDITIONS and DIVISION 1 GENERAL REQUIREMENTS apply
to the work of this section.
1.02
DESCRIPTION
A.
Basis of Design:
DSF SYSTEM – Silicone-bellows-coated, microsphere-modified-acrylic
impregnated precompressed joint sealant for expansion joints and
isolation joints in applications where continuous or intermittent
contact with purified water or ingestible food is expected. Typical
locations include, but are not limited to the following:
applications for joints in water storage tanks, potable water
containers, spill guards, and food storage areas. System shall
remain watertight under various pressures resulting from
corresponding liquid head pressure and shall accommodate movement at
the joint from thermal cycling.
1.03
RELATED
WORK SPECIFIED
ELSEWHERE
A. CONCRETE
1.04
QUALITY ASSURANCE
A. Manufacturer's Instructions: In addition to
requirements of these specifications, comply with manufacturer's
instructions and recommendations for all phases of work, including
preparation of substrate, applying materials, and protection of
installed units.
1.05
SUBMITTALS
General: Submit the following in accordance with
(***Designer: Insert appropriate
section reference for submittals***).
A.
Product data in the form of manufacturer's product specifications,
installation instructions, and details for each type of expansion
joint sealant system indicated.
B. Samples of same materials to be used in work
C. Including certification in writing that the material
has been tested to withstand required depth of liquid head
pressure,
D. Certification in writing that the material to be
supplied will be free in composition of any waxes or asphalts, wax
compounds or asphalt compounds.
E. Certification in writing that the material to be
supplied is: a) capable of withstanding 150°F (65°C) for 3 hours
while compressed down to the minimum of movement capability
dimension of the basis of design product (-25% of nominal material
size) without evidence of any bleeding of impregnation medium from
the material; and b) that the same material after the heat stability
test will self-expand to the maximum of movement capability
dimension of the basis-of-design product (+25% of nominal material
size) within 24 hours at room temperature 68°F (20°C).
1.06
PRODUCT DELIVERY, STORAGE
AND HANDLING
A. Deliver materials as factory packaged, sealed, and
labeled. Handle and protect as necessary to prevent damage or
deterioration during shipment, handling and storage.
B. Follow any special instructions by manufacturer or
manufacturer’s representative.
1.07
PROJECT CONDITIONS
A. Substrate Condition: Proceed with work only
when substrate construction and preparation work is complete and in
condition to receive sealant system.
B. Weather Conditions: Perform work only when
existing and forecasted weather conditions are within the guidelines
established by the manufacturer of the sealant system.
PART 2 –
PRODUCTS
2.01
ACCEPTABLE MANUFACTURERS
A. Manufacturers known to be able to supply materials as
specified:
EMSEAL JOINT SYSTEMS, LTD,
25 Bridle Lane Westborough, MA 01581-2603, Toll Free: 800-526-8365
or PH: 508-836-0280, FX: 508-836-0281,
www.emseal.com.
CANADA: EMSEAL, LLC,
120 Carrier Drive, Toronto, Ontario, Canada, M9W 5R1 Toll Free:
800-526-8365 or PH: 416-740-2090, FX: 416-740-0233,
www.emseal.com
2.02
MATERIALS
A. Sealant
system shall be comprised of three components: 1) microsphere-modified,
100% acrylic impregnated foam factory-coated on the contact surface
with silicone sealant; 2) field-applied epoxy adhesive, 3)
field-injected silicone sealant bands. Impregnation agent to have
proven non-migratory characteristics. Silicone coating to be applied
to the impregnated foam sealant at a width greater than maximum
allowable joint extension and when cured and compressed will form a
bellows. Product must be proved to have been tested under simulated
head pressure testing in a suitable testing assembly, to be capable
of resisting indefinitely the required positive liquid head
pressure. Material shall be capable of movements of +25%, -25% (50%
total) of nominal material size. Nominal material size to match
field-measured joint size at mean
temperature or must be adjusted for
mean temperature. Depth of
seal to manufacturer's standard.
B. All
substitute candidates in addition to demonstrating in writing the
testing used to determine the material's ability to withstand
required liquid head pressure when submerged,,,
shall provide certification in writing to be free in composition of
any waxes or asphalts, wax compounds or asphalt compounds. All
substitute candidates shall be certified in writing to be: a)
capable of withstanding 150°F (65°C) for 3 hours while compressed
down to the minimum of movement capability dimension of the basis of
design product (-25% of nominal material size) without evidence of
any bleeding of impregnation medium from the material; and b) that
the same material after the heat stability test will self-expand to
the maximum of movement capability dimension of the basis-of-design
product (+30% of nominal material size) within 24 hours at room
temperature 68°F (20°C).
PART 3 –
EXECUTION
3.01
INSPECTION
A.
Joint surfaces to receive seal shall be sound, smooth, straight,
parallel, clean, dry and free of all visible contaminants.
Applications of non-visible coatings or contaminants to surfaces of
joint interface area prior to installation of seal shall be
controlled by the Architect/Engineer in consultation with the
expansion joint manufacturer.
B. The joint configuration and the joint surfaces shall
be as detailed in the drawings and in accordance with the contract
specifications and in compliance with requirements in the current
material Tech Data available from the Manufacturer. All known
detrimental conditions shall be reported immediately in writing.
Field measurements of the depth and width of the joint shall be
supplied to manufacturer before material is ordered.
3.02
INSTALLATION
A.
Do not proceed with the installation of joint sealer if the joint is
other than designed, until written notification of these conditions
is submitted to the manufacturer and design professional, and a
written acknowledgement with an order to proceed is provided.
B. Do
not proceed with the installation of joint sealer/epoxy under
adverse weather conditions when joint to be sealed is damp, wet or
frozen, or when temperatures are below or above the manufacturer's
recommended limitations for installation. Consult manufacturer for
specific instructions before proceeding.
C. Joint sealer/expansion joint material to be installed
in strict accordance with the manufacturer's instructions and the
advice of their official representative.
C.
Installation: The top of the concrete or other substrate on the
joint faces is to be coated with epoxy adhesive using manufacturer's
supplied field epoxy. DSF foam seal to be installed into
manufacturer-supplied field-applied epoxy adhesive. The DSF SYSTEM
is to be installed slightly recessed from the surface such that when
the field-applied injection band of silicone sealant is installed
between the substrates and the foam-and-silicone-bellows, the system
will be essentially flush with the substrate surface. Joins between
lengths of material to be joined using a field-application of
manufacturer-supplied liquid silicone at the adjoining bellows faces
and top 3/4-inches of adjoining foam. Any exposed foam ends must be
covered in the field with a skim-coat of the manufacturer supplied
liquid silicone sealant.
Manufacturer-supplied silicone sealant to be shipped in 1.5 gallon
kits in two components. The full 1.5 gallon kit must be mixed and
the mixed sealant drawn up into a bulk gun from which it will be
dispensed. The working time on a mixed kit is about 1 hour at
70-deg F. (21-deg C). Some wastage should be expected and extra kits
may need to be ordered by the applicator depending on the total
quantity, temperature at time of installation and staging of the
work.
Factory-fabricated universal-90-degree termination and transition
units shall be used to terminate all joints into vertical plane
surfaces (walls, parapets, ends of decks, etc) as well as to
transition the material through curbs, or other in-slab plane
changes. Universal-90-degree termination and
transition pieces to be single units containing
minimum 12-inch long leg and 6-inch long leg on each side of the
direction change respectively. Both the top and bottom surfaces of
the entire unit to be continuously coated with the silicone bellows.
Termination pieces to have the top of the 6-inch leg factory-mitered
and bellows-coated at 45-degrees to provide a transition point to
vertical-grade materials, or when installed as a downturn
termination at deck edges to act as a drip edge. Factory-fabricated
units to be field-joined to straight lengths in accordance with
manufacturer’s prescribed methods and supplied joining materials.
3.03
CLEANING
AND PROTECTION
A. Remove all waste materials from site. Leave work in
a condition satisfactory to the Architect/Engineer.
END OF SECTION
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