***CRITICAL ADDITION TO DIVISION 7—CONCRETE.  Note to specifier:  To facilitate successful expansion joint installation, follow the link below and include the proposed language in Division 7*** 

This guide specification was issued April 2014 and may be superseded without notice at any time. Therefore, please confirm that this specification is still current and has not been superseded by checking at www.cetco.com or by calling 1-800-527-9948. 

CAST-IN-PLACE CONCRETE CONSTRUCTION SPECIFICATION

This guide specification has been prepared according to the principles established in the Manual of Practice published by the Construction Specification Institute and is intended for use with cast-in-place concrete structures. This specification is not intended for use with shotcrete. Contact CETCO regarding installation and application guidelines for CoreFlex Waterproofing System when used with below-grade shotcrete, masonry block, or precast concrete construction. CETCO, Building Materials– 1-847-851-1800. 

This master guide specification contains work sections in PART 3 – Execution – pertaining to both zero-lot line construction and backfilled foundation wall construction. Therefore, PART 3 should be edited to only include work sections specific to the job site conditions required on the project.  

SECTION 079500 – APRIL 2014 (Supersedes All Previous Versions)

CXJ EXPANSION JOINT SYSTEM FOR BLIND-SIDE FORMED, LAGGING WALL AND UNDERSLAB CONDITIONS MANUFACTURER'S GUIDE SPECIFICATION

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	WORK SUMMARY

A. 	The work of this section includes, but is not limited to the furnishing and installing the following materials, per project specifications and drawings, or as directed by waterproofing manufacturer:
1. CXJ Expansion Joint system with all applicable accessory products. 

1.03	RELATED SECTIONS

1. Division 2: Subsurface and Geotechnical Investigations	
	2. Division 3: Waterstops
	3. Division 7: Joint Treatment/ Sealants, Flashing and sheet metal, and Insulation 
	4. Division 22: Deck and Floor Drains and other Mechanical Penetrations
	5. Division 26: Conduit and other Electrical Penetrations
	6. Division 31: Earthwork, Excavation and Fill, Shoring, 
	7. Division 33: Geocomposite Foundation Drainage

1.04	SYSTEM DESCRIPTION

A.	CXJ Expansion Joint System – Heavy-duty, double-celled, thermoplastic sealing gland flanked by integral side flashing sheets.

1.05	SUBMITTALS

A.	General: Prepare and submit specified submittals in accordance with "Conditions of the Contract" and Division 1 Submittals Sections.

B.	Product Data: Product data in the form of manufacturer's product specifications, detailed installation instructions that include specifics on integration of side flashing sheets with the waterproofing system and general recommendations for each type of expansion joint assembly indicated.

C.	Submit manufacturer’s product data, with complete general and specific installation instructions, recommendations, and limitations.

D.	Samples for each expansion joint assembly of same materials to be used in work.

E.	Waterproofing Material and Labor Warranty: At time of bid, submit a sample copy of the Manufacturer’s Waterproofing warranty complete with all coverage’s, limitations, and conditions. 

F.	Contractor Certificate: At time of bid, submit written certification that installer has current Approved Applicator status with waterproofing material manufacturer.

G.	Shop drawings showing full extent of expansion joint assemblies; include details indicating profiles of each type of expansion joint assembly, splice joints between sections, joinery with other types, special end conditions, fasteners, and relationship to adjoining work and finishes with specific reference to tie-in with waterproofing system through integration with expansion joint system side flashing sheets.

1.06	QUALITY ASSURANCE

A.	Installer Qualifications: Installing company should have at least three (3) years’ experience in work of the type required by this section, who can comply with manufacturer's warranty requirements, and who is an Approved Applicator as determined by waterproofing/drainage system manufacturer. The applicator must be the same contractor that will be installing the foundation waterproofing system.

B.	Manufacturer Qualifications:  Below grade expansion joint assemblies, waterproofing membranes and all accessory products shall be provided by a single manufacturer with a minimum of 30 years’ experience in the direct production and sales of waterproofing systems. Manufacturer shall be capable of providing field service representation during construction, approving an acceptable installer, and recommending appropriate installation methods.

C.	Pre-Installation Conference: A pre-installation conference shall be held prior to commencement of field installation to establish procedures to maintain required working conditions and to coordinate this work with related and adjacent work. Verify that final waterproofing and waterstop details comply with waterproofing manufacturer's current installation requirements and recommendations. Pre-con meeting attendees should include representatives for the owner, architect, inspection firm, general contractor, waterproofing contractor, concrete contractor, excavating/backfill contractor, and mechanical and electrical contractors if work penetrates the waterproofing.  

D.	Materials: Obtain expansion joints, and waterproofing membrane with accessory products and prefabricated drainage materials from a single manufacturer to assure material compatibility. 

E.	Independent Inspection: Owner shall make all arrangements and payments for an independent inspection service to monitor waterproofing material installation compliance with the project contract documents and manufacturer’s published literature and site specific details. Independent Inspection Firm shall be an approved company participating with the waterproofing manufacturer’s Certified Inspection Program. Inspection service shall produce reports and digital photographs documenting each inspection. Reports shall be made available in a timely manner to the Contractor, waterproofing installer, waterproofing material manufacturer, and Architect. Inspections should include substrate examination, beginning of waterproofing installation, periodic intervals, and final inspection prior to concrete or backfill placement against the waterproofing.

1.07	PRODUCT DELIVERY, STORAGE AND HANDLING

A.	Delivery and Handling: 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.

1.08	PROJECT CONDITIONS

A.	Substrate Condition: Proceed with work only when substrate construction and preparation work is complete and in condition to receive expansion joint system. Substrate preparation shall be per waterproofing manufacturer’s guidelines.

B.	Weather Conditions: Perform work only when existing and forecasted weather conditions are within the guidelines established by the manufacturer of the waterproofing materials. 

1.09 	WARRANTY

A.	Warranty eligibility for the project must be validated by Manufacturer, confirming acceptance of the installation and independent inspection reports are in accordance with the manufacturer’s quality assurance program requirements.   

B.	Waterproofing Material and Labor Warranty: Upon installation completion and manufacturer acceptance of the work required by this section, the waterproofing materials manufacturer will provide to the project Owner, a written non-prorated warranty matching the warranty of the CETCO waterproofing membrane used, covering both materials and labor. Issuance of Manufacturer's Waterproofing Warranty requires the following: (1) Waterproofing System products and drainage composite products shall have been provided by a single manufacturer; (2) Installation of waterproofing products and CXJ Expansion Joint by Manufacturer's Approved Applicator in full accordance with the manufacturer’s quality assurance program requirements; (3) Installation inspected by an approved and trained Independent Inspection Firm participating with the waterproofing manufacturer’s Certified Inspection Program; (4) In Division 3 work, Waterstop-RX must be installed in all applicable concrete cold pour construction joints, including around applicable penetrations. Manufacturer's warranty shall be independent from any other warranties made by the Contractor under requirements of the Contract Documents and may run concurrent with the other warranties.

PART 2 – PRODUCTS

2.01	MANUFACTURER

A.	Manufacturers known to be able to supply materials as specified:  
	Provide CXJ Expansion Joint System and all applicable accessories as manufactured by Colloid Environmental Technologies Company (CETCO), 2870 Forbs Avenue, Hoffman Estates, IL 60192, Phone: Toll free (800) 527-9948 or (847) 851-1800; Web-site: www.cetco.com

2.02	MATERIALS

A.	CXJ EXPANSION JOINT FOR BLIND-SIDE FORMED, LAGGING WALL AND UNDERSLAB CONDITIONS

Expansion joint system must consist of all of the following components:

1. Dual Center Gland: Dual Center Gland shall be formed of a thermoplastic rubber to enable heat welding of butt joints, directional changes (TEEs, ELLs) and transitions in plane (horizontal to vertical and vice versa).  All directional changes and transitions shall be factory-fabricated to drawing dimensions on centerline provided by the contractor. 

2. Integral Side Flashing Sheets:  The flashing side sheets shall be 300mm (12”) wide x 3mm (1/8”) thick thermoplastic rubber to allow heat welding at all joints for continuous waterproofing at all transitions, corners, upturns, etc. Flashing sheets shall be continuously integrated with the thermoplastic sealing gland.  Flashing sheets shall be ”sandwiched and adhered” between two layers of waterproofing membrane and adhered, embedded in, and fully encapsulated with an adhesive mastic compatible with both the CXJ Expansion Joint System side flashing sheets and the waterproofing membrane.

3. Termination Bar:  Termination bar shall be aluminum, 2.7mm (0.087”) thick with slotted holes 7.1 mm x 9.9 mm (0.28” x 0.39”) spaced at 99.8mm (3.93”) on center.  Termination bar has a 45° lip on each end.

4. Protruding Head Anchors:  Protruding head anchors shall be 150mm (6”) long with a thread diameter of 6mm (0.245”), a shank diameter of 5mm (0.19”), a head diameter of 11mm (0.435”).  The head style shall be a #3 Phillips Truss Head.  Anchors are coated with CR-10 corrosion resistant coating.  Anchors are fitted with 10mm (3/8”) OD x 16GA spacer, 50mm (2”) long.  Anchors shall be capable of fastening into wood and concrete. Anchors shall be spaced at a maximum of 150mm (6”) on center.

PART 3 – EXECUTION

A.	Comply with contract documents and manufacturer’s product data, including product application and installation instructions.

3.01	SUBSTRATE INSPECTION AND CONDITIONS

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.	Independent inspector hired and contracted by the Owner shall be on site at commencement of installation for inspection of substrate preparation and to observe the field butt welding between each CXJ component piece.  After completion of the butt weld by the applicator, the independent inspector will verify continuous weld integrity of any field produced butt weld via visual inspection, probing and physical manipulation.     

3.02	AMBIENT CONDITIONS

A.	Installation shall not proceed when work areas are flooded or excessively wet.  Consult manufacturer’s representative or manufacturer for site specific recommendations and requirements.

3.03	PROPERTY LINE WALL GENERAL INSTALLATION GUIDELINES (PRE-APPLIED)

A.	The following is a general summary of installation requirements.  In all cases the manufacturer’s standard written instructions or specific instructions of the manufacturer’s technician are to be followed.

B.	There are three basic property line conditions in which the CXJ Expansion Joint System can be installed:

a.	On the underside of the floor-slab (on top of a mud slab) of a foundation or tunnel with freestanding walls
b.	Under the floor-slab AND on the walls of a blind-side formed (lagging retaining system) foundation or tunnel.
c.	On the walls only of a blind-side formed (lagging retaining system) foundation (no joint in floor slab).

C.	Where walls transition from property line wall conditions to above-grade conditions, transition from the CXJ Expansion Joint System to the approved exposed expansion joint system.

D.	The CXJ Expansion Joint System will not perform its intended function if installed on rough and irregular surfaces. Substrates similar to rock, earth, chain-link retaining mesh, etc. that are not lagging ARE NOT acceptable substrates for the CXJ Expansion Joint System.  In addition, the use of drainage board as a means to smooth irregular surfaces is not acceptable.  If drainage board is specified, the substrate that will support the drainage board must be smooth, lagged walls.

E.	The waterproofing membrane shall have been determined by the manufacturer of the membrane to be compatible with and have a proven method by which to adhere positively and permanently to the CXJ Expansion Joint System material of manufacture.

F.	The waterproofing membrane shall be installed continuously across the mud-slab, and/or lagging walls;

G.	The CXJ Expansion Joint System side sheets shall be installed without any folds, “fish-mouths” or wrinkles, into a wet waterproofing membrane mastic, supplied by the waterproofing membrane manufacturer, suitable to adhering the CXJ Expansion Joint System side sheets to the waterproofing membrane.  The waterproofing membrane mastic is to be applied to a width wider than the CXJ Expansion Joint System flashing sheets by at least 50 mm (2”).  The waterproofing membrane mastic is to be applied both below the CXJ Expansion Joint System flashing sheets as well as above the CXJ Expansion Joint System flashing sheets so as to completely encapsulate the CXJ Expansion Joint System flashing sheets.

H.	All CXJ Expansion Joint System flashing sheet transitions from floor to wall must be fully encapsulated (above and below) in waterproofing membrane mastic.

I.	The CXJ Expansion Joint System flashing sheets and wet waterproofing membrane mastic shall be covered by another full-width strip of waterproofing membrane on each side of the belly of the CXJ EXPANSION JOINT gland.

J.	The entire CXJ Expansion Joint System/waterproofing membrane sandwich shall be clamped into place using the waterproofing manufacturers supplied termination bar and protruding-head anchors.

K.	The CXJ Expansion Joint System/waterproofing membrane sandwich shall have concrete cast directly against it.

L.	The CXJ Expansion Joint System shall transition into the approved exposed plaza deck joint system on walls when access to the positive side of the walls is possible and on the roof slab or shall be suitably transitioned into the above-grade wall joint system in the building face.

M.	Cutting, Fitting and Placement: Perform all cutting and fitting required for installation of expansion joint system on a flat level area.  Install joint system in true alignment and proper relationship to expansion joints and adjoining finished surfaces measured from established lines and levels.  Securely attach in place with all required accessories.  Position anchors at recommended intervals.

N.	Continuity: Maintain continuity of expansion joint assemblies with end joints held to a minimum.

O.	Installation of Extruded Preformed Seals: Integrate flashing sheets with waterproofing system materials according to manufacturer’s detailed installation instructions. Install seals in continuous lengths to comply with manufacturer's instructions.  All transitions and terminations shall be factory-welded according to field-measurements and drawings on centerline provided by the contractor.  Site welding, where required, is limited to butt welding linear sections of the joint together, or linear sections to factory produced transitions.

3.04 	BACKFILLED WALL GENERAL INSTALLATION GUIDELINES (POST APPLIED)

A.	Where walls transition from backfilled below grade conditions to above-grade conditions; transition from the CXJ Expansion Joint System to the approved exposed above grade expansion joint system.

B.	The CXJ Expansion Joint System will not perform its intended function if installed on rough and irregular surfaces. The substrate must be free and clean of all dust and debris.  The formed expansion joint must be appropriately sized to match the specific CXJ Expansion Joint System product specified.

C.	The waterproofing membrane shall have been determined by the manufacturer of the membrane to be compatible with, and have a proven method, by which to adhere positively and permanently to the CXJ Expansion Joint System. 

D.	The waterproofing membrane shall be installed continuously across the concrete wall up to the location of the expansion joint.

E.	The CXJ Expansion Joint System narrow flange shall be installed without any folds, “fish-mouths” or wrinkles, into a wet waterproofing membrane mastic, supplied by the waterproofing membrane manufacturer, suitable to adhering the CXJ Expansion Joint System narrow flange to the substrate.  The waterproofing membrane mastic is to be applied to the substrate, wider than the CXJ Expansion Joint System wide flange by at least 50 mm (2”).  

F.	The CXJ Expansion Joint System narrow flange is then secured to the substrate with waterproofing membrane manufacturer supplied termination bar and placement of concrete screws 200 mm (8”) on center.  

G.	POWDER ACTUATED FASTENERS ARE NOT ACCEPTABLE FOR USE IN SECURING THE NARROW FLANGE TO THE SUBSTRATE.

H.	One full-width strip of waterproofing membrane is then placed into the pocket between narrow and wide flanges of the CXJ Expansion Joint System.  

I.	The CXJ Expansion Joint System wide flange shall be installed without any folds “fish-mouths” or wrinkles, against the waterproofing membrane, secured with waterproofing membrane manufacturer supplied termination bar and placement of concrete screws/powder actuated fasteners 200mm (8”) on center.  

J.	An additional full width strip of waterproofing membrane is then installed vertically, centered along the centerline of the CXJ Expansion Joint System for the entire length of the CXJ Expansion Joint System according to typical waterproofing membrane manufacturer’s membrane installation guidelines.

K.	An approved protection course must be installed over the entire length of the CXJ Expansion Joint System prior to backfill placement.

L.	The CXJ Expansion Joint System shall transition into the approved exposed plaza deck joint system on walls when access to the positive side of the walls is possible and on the roof slab or shall be suitably transitioned into the above-grade wall joint system in the building face.

M.	Cutting, Fitting and Placement: Perform all cutting and fitting required for installation of expansion joint system on a flat level area.  Install joint system in true alignment and proper relationship to expansion joints and adjoining finished surfaces measured from established lines and levels.  Securely attach in place with all required accessories.  Position anchors at recommended intervals.

N.	Continuity: Maintain continuity of expansion joint assemblies with end joints held to a minimum.

O.	Installation of Extruded Preformed Seals: Integrate flashing sheets with waterproofing system materials according to manufacturer’s detailed installation instructions. Install seals in continuous lengths to comply with manufacturer's instructions.  All transitions and terminations shall be factory-welded according to field-measurements and drawings on centerline provided by the contractor.  Site welding, where required, is limited to butt welding linear sections of the joint together, or linear sections to factory produced transitions.

3.05	CLEANING AND PROTECTION

A.	Remove all waste materials from the site.  Do not use waste materials for patching unless so directed by the manufacturer. Leave work in a condition satisfactory to the Architect/Engineer.

End of Section 079500