Document Control No.: BGS07900-SPB
11/19/04
SECTION 07900
EXTERIOR EXPANSION AND SEISMIC JOINT SYSTEM SPECIFICATION
DuraFlexTM “SPB” Series – Single-Ply Membrane System
Buried Joint Expansion Control System
PART 1 - GENERAL
1.01 Related Documents
A. Drawings and general provisions of the Contract, including General
Conditions, Supplementary Conditions and Division-1 General Requirements,
apply to the work of this section.
1.02 Work Included
A. The work shall consist of furnishing and installing expansion joint systems in
accordance with the details shown on the plans and the requirements of the
specifications. The joints are proprietary designs utilizing an extruded
single-ply membrane seal and an elastomeric concrete nosing material. In
the event of any discrepancy between the contract drawings and
specifications, the specifications shall govern.
1.03 Related Work
A. Related work which is specified elsewhere.
1. Division 3 – Section 03300 on Concrete
2. Division 3 – Section 03450 on Architectural Precast Concrete
3. Division 7 – Section 07900 on Waterproofing, Sealants and Caulking
1.04 References
A. Publications listed herein are part of this specification to the extent
referenced. The criteria established in the specifications shall take
precedence over the standards referenced herein.
1. American Society for Testing and Materials (ASTM):
a. ASTM E1399, Standard Test Method for Cyclic Movement and
Measuring the Minimum and Maximum Joint Widths of Architectural
Joint Systems.
1.05 Submittals
A. Shop Drawings and Product Data – Submit typical expansion joint cross-
sections indicating pertinent dimensioning, general construction, joint
dimensioning and product data information. Drawings will also show
transition and installation details.
B. Samples – Submit one (1) sample piece at least 6” long, of each type required, to the Project Architect/Engineer for approval.
1.06 System Description
A. DuraFlexTM “SPB” Series – Single-Ply Membrane System as manufactured
by Balco, Inc.
1. The joint seal shall be a watertight expansion control system that is
capable of accommodating multi-directional movement.
2. The system is designed for buried applications and shall consist of an
extruded single-ply elastomeric membrane seal that is secured to the
concrete using a proprietary ambient-cured elastomeric concrete nosing
material.
3. The single-ply elastomeric membrane seal shall be sized to
accommodate the total range of movement as dictated by the specifier for
each joint location. The contractor will provide evidence utilizing the
Manufacturer’s product data that the seal profile will comply with the
requirement.
1.07 Quality Assurance
A. Manufacturer: Obtain joint seals through one source from a single
manufacturer.
1. The Manufacturer shall be ISO 9001:2000 Certified.
a. The manufacturer shall have documented management and control of
the processes that influence the quality of its products.
b. The manufacturer shall have documented management and control of
the processes that influence the quality of its customer service.
c. Manufacturers in the process of obtaining ISO 9001:2000 Certification
shall not be considered.
2. The manufacturer shall have a minimum of ten (10) years of experience
in the fabrication of expansion joint system assemblies.
B. Installer: The installer shall be acceptable to the system manufacturer.
1. The installer shall be insured and also licensed, as required, by the local
state agency within the project’s jurisdiction.
2. The approved installer shall prepare and submit details of all special
conditions to the manufacturer for review and approval prior to
installation.
1.08 Product Delivery, Storage and Handling
A. Deliver joint seal systems to the jobsite in new, clean, intact, labeled,
unopened crates, containers, pallets, reels, or bundles of sufficient size and
strength to protect the materials during transit.
B. Store all components under shelter in a dry, cool location. Store off the
ground; protect from freezing, direct sun exposure, weather and construction
activities. All resin components, including Elastomeric Concrete Part A and
Part B and Tack Coat Part A and Part B, shall be stored at temperatures
between 50°F and 80°F.
C. Until used, all components should be left in the manufacturer’s original,
unopened labeled crates, containers, pallets, reels or bundles.
1.09 Project Conditions
A. Joint Opening – The work may proceed only after the Installer has reviewed
the joint opening/temperature information, and coordinated that information
with the Engineer’s design calculations. This will determine the proper size
“SPB” single-ply membrane seal that should be used for each joint location.
Note that this size may vary from that called for in the Bid Documents.
B. Environmental Conditions – Do not proceed with installation of the
elastomeric concrete nosing and the compression seal under the following
conditions:
1. When ambient and substrate temperature conditions are outside the limits
permited by the Manufacturer.
2. When the joint substrates are wet.
C. The expansion joint system installation area surfaces concrete must be
sandblasted to remove laitance, loosely bonded material and any other
contaminant. They shall be free of dust, oil, grease, wax, moisture and
frost. The joint interface walls shall be clean.
1.10 Warranty
A. Warranty: The specified products shall be warranted when installed in strict
accordance with the manufacturer’s technical specifications, details,
installation instructions and general procedures as well as good industry
practice in effect for normal traffic usage and suitable applications under
specific design movements and loading conditions..
1. The expansion joint system shall be warranted for a period of one (1)
year.
2. The specified products shall be warranted for a period of [one (1) year]
[three (3) years] [_____ years] when installed by a certified installer,
factory trained by the manufacturer and certified in the proper installation
of the system.
PART 2 - PRODUCT
2.01 Acceptable Manufacturer
A. Furnish and install as noted in the specifications and as indicated on the
drawings DuraFlexTM “SPB” Series – Single-Ply Membrane System(s) [SPB-
175] [SPB-225] as manufactured by: Balco, Inc., PO Box 17249, 2626 S.
Sheridan, Wichita, Kansas 67217; phone: 800-767-0082 or (316) 945-9328;
fax: (316) 945-0789.
B. Alternate manufacturers and their products will be considered, provided they
meet the design concept and are produced of materials that are equal to or
superior to those called for in the base product specification.
C. Any proposed alternate system must be submitted and receive approval 21
days prior to bid. Proposals made subsequently will not be considered. This
submission shall be in accordance with information shown in Division 1
“Request for Substitution”.
2.02 Components and Materials
A. Single-Ply Elastomeric Membrane Seal:
1. Shall have factory-punched holes in the flaps through which the nosing
material bonds the seal to the deck, ensuring leak resistance and proper
joint performance.
2. Shall be extruded from a flexible, extruded thermoplastic (TPE)
compound (Santoprene) exhibiting the physical properties listed in the
table below.
The Elastomeric Membrane Gland shall have the following properties:
Material: Thermoplastic Rubber (Santoprene)
Tensile strength, min. psi (Mpa); ASTM D412 1000
Ultimate elongation, min, %; ASTM D412 410
Hardness, Type A durometer, points; ASTM D2240 mod. 67 +/- 3
Compression set, % @ 77oF; D395, Method B (mod.) 24
168 hrs, % @ 212oF; D395, Method B (mod.) 36
100% modulus, psi; ASTM D412 420
Tear strength, lbs/inch; ASTM D624 140
Tension set, %, ASTM D412 10
Specific gravity, ASTM D792 0.97
Brittle point, oF; ASTM D746 -81
B. Elastomeric Concrete:
1. Balco, Inc. Elastomeric Concrete – EC11 ambient-cured header material
consisting of polyurethane liquid components “A” and “B” and a
proprietary aggregate system.
2. The elastomeric concrete shall be mixed at the jobsite. It shall have the following properties:
Tensile strength, psi; ASTM D412 1680 psi
Elongation at break, min., %; ASTM D638 240
Durometer hardness, Type A; ASTM D2240 75 +/-3
Tear resistance, min., lbs/inch; ASTM D624 195
Adhesion Properties Bond to Concrete,
psi, min.; ASTM C109 422
Pot life, min. 20 minutes
Ozone Resistance: ASTM D1149 No Cracks
UV Resistance; ASTM G53 Excellent
Compression Strength; ASTM D695
5% deflection, psi, min. 1442
Resilience, %, min. 96
C. Bonding Agent:
1. All concrete in contact with the seal must be primed using Primer 2 two
component primer, mixed in accordance with the manufacturer’s
instructions.
2. Tack Coat – TC12 two component bedding material shall be applied to
the concrete continuously under the seal flaps and so that it rises
through the perforations in the seal flaps.
a. Tack Coat – TC12 shall be mixed at the jobsite in accordance with the
manufacturer’s instructions.
b. Tack Coat –TC12 shall be installed in accordance with the
manufacturer’s instructions.
D. Accessories:
1. Provide other materials required for complete installation of the DuraflexTM
“SPB” Series – Single-Ply Membrane System(s) in accordance with the
manufacturer’s written installation instructions.
2.03 Fabrication
A. Ship thermoplastic single-ply membrane seal in the longest practical
continuous length, coiled on Manufacturer’s standard reel or on wooden
pallets shrink-wrapped.
B. Heat weld butt splice connections on the jobsite in accordance with the
Manufacturer’s written instructions. All butt splice connections shall
incorporate welding of the complete gland profile, including heat fusing of all
internal and external web configurations.
C. Horizontal transitions shall be [factory fabricated] [fabricated on the jobsite]
with heat-welded splices, such as 90o corners, tees and crosses. The
horizontal transitions shall extend a minimum of 2’-0” in each direction from
the splice. All horizontal transitions shall incorporate welding of the complete
gland profile, including heat fusing of all internal and external web
configurations.
D. Ship Bonding Agent and Elastomeric Concrete Header in Manufacturer’s
approved containers on wooden pallets, shrink-wrapped.
2.04 Finishes
A. Single-Ply Santoprene membrane seal shall be supplied in standard color:
black.
B. Elastomeric Concrete Header material shall be supplied in standard color:
black.
PART 3 - EXECUTION
3.01 Inspection
A. The joint opening shall be solid, properly formed, properly cured concrete and
shall be formed per the manufacturer’s instructions, recommendations and
details and per the project requirements. Any edge or area needing repair
shall be repaired utilizing one of the Balco, Inc. recommended concrete repair
materials to provide a solid and square joint opening.
B. Joint openings requiring the use of patching compounds must be cured in
accordance with the manufacturer’s recommendations and instructions prior
to placement of Balco, Inc. Elastomeric Concrete – EC11.
C. Clean dirt, stones, and all other contaminants and impurities from the
joint opening and sandblast the joint system installation area adjacent to the
opening to expose aggregate to remove laitance and contaminants and to
prepare the surfaces for the installation of the Elastomeric Concrete Header
material.
D. Mask along the edges of the installation area with tape to assure neat, clean
joint lines. Remove the tape prior to the curing process.
3.02 Examination
A. Verify that field measurements and joint dimensions are as shown on shop
drawings prior to releasing materials for fabrication by the manufacturer.
B. Installer shall examine conditions under which work is to be performed
and shall notify the contractor in writing of unsatisfactory conditions. Installer
shall not proceed with the installation until unsatisfactory conditions have
been corrected in a manner acceptable to the installer.
3.03 Installation
A. Protect all expansion joint system component parts from damage during
installation, placement of concrete and thereafter until completion of the
structure.
B. Do not install Balco, Inc. Elastomeric Concrete – EC11 if the ambient
temperature is below 40oF. Balco, Inc. Elastomeric Concrete – EC11 will
cure at temperatures down to 32oF; however, the application temperature
must not be below 40oF.
C. Immediately prior to installation, the installation area should be
blown out using compressed air.
D. Prepare the installation area in accordance with the manufacturer’s
recommendations and instructions.
E. Unpackage the single-ply membrane seal, uncoil it and allow it to relax to
relieve any temporary coiling from shipment packaging and storage. Prepare
the membrane seal for installation in accordance with the manufacturer’s
recommendations and instructions.
F. Install the Single-Ply Membrane System in accordance with the
manufacturer’s recommendations and instructions. Ensure that the Primer,
Bonding Agent, and Elastomeric Concrete components are mixed in
accordance with the manufacturer’s recommendations and instructions.
G. Clean up the work area after installation of the system is completed.
H. Once poured and cured, the elastomeric concrete shall allow traffic in
approximately 4 – 6 hours)
3.04 Adjusting and Protection
A. Protect the completed expansion joint work from damage during construction.
1. Heavy construction vehicles shall not be permitted to cross the joint
without the specific and written permission of the Engineer.
2. Subsequential damage to the Membrane System shall be repaired at the
contractor’s expense.
End of Section
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