15-Sec 03 25 00 Waterstops and Waterproofing.pdf
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- Bucks County, Pennsylvania
About this file
This is a specification document for waterstops and waterproofing materials required for the Fanny Chapman Memorial Pool repairs project in Doylestown Borough, Bucks County, Pennsylvania. The specification details the furnishing and installation of expanding bentonite-based waterstop materials to be used in concrete construction joints, penetrations, and around structural members throughout the pool repair work. The primary product specified is Waterstop-RX 102 (3/4" x 3/8" x 33'-4" rolls), manufactured by Colloid Environmental Technologies Company (CETCO), along with Cetseal adhesive for securing the waterstop. The specification requires that concrete substrates achieve a minimum compressive strength of 3000 psi, with waterstop installation maintaining minimum 2-inch concrete coverage on all sides. Installation must follow manufacturer guidelines precisely, with substrate preparation including removal of dirt, debris, oil, grease, cement laitance, and other foreign matter. The waterstop must be installed in all applicable vertical and horizontal cast-in-place concrete construction joints and around applicable penetrations and structural members, with coil ends butted tightly together without overlapping.
The specification emphasizes critical installation procedures including application of a continuous bead of Cetseal adhesive with a typical 3/16-inch diameter bead diameter on dry, smooth concrete surfaces, maintaining minimum 2-inch depth within the concrete joint. The waterstop material must not be pre-hydrated prior to concrete placement and encapsulation, with any material exhibiting significant expansion prior to concrete encapsulation requiring replacement. Mechanical fasteners may be used in conjunction with Cetseal adhesive but cannot be used solely to secure the waterstop. The specification explicitly prohibits the use of Waterstop-RX for waterproofing or sealing expansion joints, with responsibility for waterproofing expansion joints assigned to others. All materials must be delivered in factory-sealed and labeled packaging and handled and stored according to manufacturer instructions, protecting them from construction damage, weather exposure, excessive temperatures, and prolonged sunlight.
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Text version
Concrete Pool Repairs 07.24.2025
FANNY CHAPMAN
SECTION 03 25 00
SPECIFICATION FOR WATERSTOPS AND WATERPROOFING
Fanny Chapman Pool Repairs Doylestown Borough, Bucks Co., PA
Section 03 25 00 - Waterstops and Waterproofing 08.26.2025
Part 1 - General
1.1 Related Documentation
A. All of the Contract Documents, including General and Supplementary Conditions, and Division 1 General requirements, apply to the work of this section.
1.2 Work Summary
A. Furnish and install expanding bentonite-based waterstop as specified herein, illustrated on project drawings, or as required to complete the work complying with waterproofing manufacturer warranty requirements.
1.3 Quality Assurance
A. Verification of Details: Contractor to notify the Architect immediately of any detail, note, or specification which does not comply with current manufacturer's installation requirements
B. Adhesion: Waterstop-RX is not a self-adhering product. Cetseal is required to secure Waterstop- RX. No other adhesive should be used. Mechanical fasteners can be used in conjunction with Cetseal adhesive but should not be used solely to secure the waterstop.
C. Installation Instructions: Components and installation procedures shall be in accordance with current manufacturer's printed specifications and recommendations. Verify technical data submittals are the most current with manufacturer - (847) 851-1800.
D. Expansion Joints: WATERSTOP-RX is not designed, nor intended for waterproofing or sealing expansion joints. Responsibility of waterproofing expansion joints is of others.
E. Concrete: Concrete shall be structural grade quality with a minimum 3000 psi tensile strength.
1.4 Submittals
A. Product Data: Submit manufacturer’s product data, with complete general and specific installation instructions, recommendations, and limitations.
1.5 Product Delivery, Storage, and Handling
A. Deliver materials in factory sealed and labeled packaging. Sequence deliveries to avoid delays, while minimizing on-site storage. Handle and store following manufacturer's instructions, recommendations and material safety data sheets. Protect from construction operation related damage, as well as damage from weather, excessive temperatures and prolonged sunlight. Remove damaged material from site and dispose of in accordance with applicable regulations.
Part 2 - Products
2.1 Manufacturer
A. Provide Waterstop-RX bentonite waterstop and Cetseal adhesive as manufactured by Colloid Environmental Technologies Company (CETCO), 2870 Forbs Ave, Hoffman Estates, IL 60192, USA.
Phone: (847) 851-1800; Fax: (847) 851-1899; Web-site: http://www.cetco.com.
http://www.cetco.com/
FANNY CHAPMAN
SECTION 03 25 00
SPECIFICATION FOR WATERSTOPS AND WATERPROOFING
Fanny Chapman Pool Repairs Doylestown Borough, Bucks Co., PA
Section 03 25 00 - Waterstops and Waterproofing 08.26.2025
2.2 Materials
A. Waterstop shall consist of sodium bentonite and butyl rubber compound formed into uniform coils.
B. Bentonite Waterstops:
WATERSTOP-RX 102: 3/4" x 3/8" x 33'-4” rolls of flexible strip of bentonite and butyl rubber compound for use in concrete construction joints - not designed for expansion joints.
Or approved equal.
C. Adhesive:
CETSEAL: A multipurpose UV stable single component polyether moisture cure sealant / adhesive.
Or approved equal.
Part 3 – Execution
Comply with Contract Documents and manufacturer's product data, including product application and installation instructions.
3.1 Substrate Inspection and Conditions
A. The installer shall examine conditions of substrates and other conditions under which this section work is to be performed and notify the contractor, in writing, of circumstances detrimental to the proper completion of the work. Do not proceed with work until unsatisfactory conditions are corrected and are acceptable for compliance with manufacturer's warranty requirements. Conditions deemed unsatisfactory shall be corrected to Owner’s satisfaction at no additional cost to the Owner.
B. Installation shall not proceed when work areas are flooded or wet to the extent that would cause bentonite waterstop to hydrate prior to concrete encapsulation.
3.2 Surface Preparation
A. Remove dirt, debris, oil, grease, cement laitance, or other foreign matter which will impair or negatively affect the installation of the waterstop. Protect adjacent material surfaces from damage or contamination from during installation operations.
3.3 General Installation Guidelines
C. Install WATERSTOP-RX in all applicable vertical and horizontal cast-in-place concrete construction joints; and around applicable penetrations and structural members. Place WATERSTOP-RX to allow for minimum 2” (50 mm) concrete coverage on all sides.
D. Apply continuous bead of CETSEAL (typical bead diameter 3/16”) to dry, smooth concrete surface maintaining a minimum 2” (50 mm) depth within the concrete joint.
FANNY CHAPMAN
SECTION 03 25 00
SPECIFICATION FOR WATERSTOPS AND WATERPROOFING
Fanny Chapman Pool Repairs Doylestown Borough, Bucks Co., PA
Section 03 25 00 - Waterstops and Waterproofing 08.26.2025
E. Remove release paper from coil of WATERSTOP-RX. Firmly press the entire length of WATERSTOP-RX into the CETSEAL adhesive bead; resulting in the adhesive bead spreading to coat most of the bottom of the waterstop. Verify 2” minimum concrete coverage will be maintained over entire placement of waterstop. Place in maximum practical lengths to minimize coil end joints.
F. Tightly butt coil ends together to form continuous waterstop. Do not overlap coil ends. Where required, cut coils with sharp knife or utility blade to fit coil ends together without overlapping.
G. Install waterstop around all applicable through wall pipes and mechanical penetrations; and around all applicable structural elements.
H. Protect installed waterstop from prehydration prior to concrete placement and product encapsulation.
Replace any waterstop material that exhibit significant expansion prior to concrete encapsulation.
3.4 Clean Up
I. Clean areas where adjacent finished surfaces are soiled by work of this Section. Remove all tools, equipment and remaining product on-site. Dispose of section work debris and damaged product following all applicable regulations.
END OF SECTION
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