1 Scope
NOTE This standard covers ancillary materials and pre-installed hardware that are set in place before or during concrete placement and become permanently incorporated into the cast-in-place concrete structure. (1.1)
NOTE The accessory package includes the following categories of work. (1.2)
- Waterstops at construction, contraction, and expansion joints - PVC, rubber (neoprene/EPDM), and hydrophilic (swelling) types.
- Under-slab vapor retarder placement, lapping, sealing, and penetration detailing.
- Reinforcing bar supports - wire, all-plastic, and precast concrete chairs and high chairs that establish and maintain specified concrete cover.
- Dovetail anchor slots cast into columns and walls to receive masonry veneer anchors.
- Embedded steel plates, angles, and weld plates with headed studs or deformed bar anchors.
- Cast-in anchor rods, headed bolts, and strap anchors with their nuts and washers.
- Construction-joint accessories and preformed expansion-joint filler.
1.3Accessories shall be accurately located, securely supported against displacement during placement, and incorporated into the pour so they perform their intended structural, waterproofing, moisture-control, or attachment function after formwork is stripped.
NOTE The accuracy of accessory placement is verified before and during the pour, because almost every defect in this scope - a migrated waterstop, a punctured vapor retarder, a sagged bar, a mislocated anchor rod - is concealed and effectively unrepairable once concrete hardens. (1.4)
NOTE Concrete materials, mixing, placement, consolidation, curing, and finishing are governed by
Cast In Place Concrete and are not part of this standard.
(1.5) NOTE Reinforcing steel, welded wire reinforcement, and post-tensioning are governed by
Concrete Reinforcement; bar supports are included here because they are accessory hardware, but the bars they carry are not.
(1.7) NOTE Sub-base preparation, compaction, and isolation-joint layout as a design exercise are governed by
Slab On Grade.
(1.9) NOTE Post-installed adhesive and mechanical anchors drilled into hardened concrete are governed by
Epoxy Grouting And Anchoring; only cast-in anchorage is covered here.
(1.10) NOTE Weather sealants, backer rod, and caulking that fill completed joints are governed by
Exterior Weather Sealants; this standard ends at the joint accessory - the filler or waterstop - and does not include the surface sealant.
(1.11) NOTE Structural steel base plates and the design of their anchor rods per AISC are governed by
Structural Steel Common Results; this standard furnishes and sets the cast-in rods to the structural engineer's design but does not establish that design.
(1.12) 2 Referenced Standards
2.1Materials, fabrication, and installation shall comply with the latest adopted edition of each of the following unless a specific edition is cited on the Drawings or in the Project Manual.
2.2Where referenced standards conflict, the more stringent requirement shall govern unless the Engineer of Record directs otherwise in writing.
| Standard |
Title |
| ACI 318 |
Building Code Requirements for Structural Concrete and Commentary (Chapter 17 anchoring; Chapter 20 cover) |
| ACI 302.2R |
Guide for Concrete Slabs that Receive Moisture-Sensitive Flooring Materials |
| ACI 305.1 |
Specification for Hot Weather Concreting |
| ASTM E1745 |
Plastic Water Vapor Retarders Used in Contact with Soil or Granular Fill under Concrete Slabs |
| ASTM E1643 |
Selection, Design, Installation, and Inspection of Water Vapor Retarders under Concrete Slabs |
| ASTM E154 |
Test Methods for Water Vapor Retarders Used in Contact with Earth under Concrete Slabs |
| ASTM E96 |
Test Methods for Water Vapor Transmission of Materials |
| COE CRD-C 572 |
Corps of Engineers Specification for Polyvinylchloride Waterstops |
| COE CRD-C 513 |
Corps of Engineers Specification for Rubber Waterstops |
| ASTM D412 |
Vulcanized Rubber and Thermoplastic Elastomers - Tension |
| ASTM D1751 |
Preformed Expansion Joint Filler (Nonextruding and Resilient Bituminous Types) |
| ASTM D1752 |
Preformed Sponge Rubber Cork and Recycled PVC Expansion Joint Fillers |
| ASTM A1064 |
Carbon-Steel Wire and Welded Wire Reinforcement for Concrete |
| ASTM A36 |
Carbon Structural Steel |
| ASTM A108 |
Steel Bar, Carbon and Alloy, Cold-Finished |
| ASTM F1554 |
Anchor Bolts, Steel, 36, 55, and 105-ksi Yield Strength |
| ASTM A307 |
Carbon Steel Bolts, Studs, and Threaded Rod 60,000 PSI Tensile Strength |
| ASTM A123 |
Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products |
| ASTM A153 |
Zinc Coating (Hot-Dip) on Iron and Steel Hardware |
| ASTM A563 |
Carbon and Alloy Steel Nuts |
| ASTM F436 |
Hardened Steel Washers |
| AWS D1.1 |
Structural Welding Code - Steel |
| CRSI MSP |
Manual of Standard Practice (bar support classes and spacing) |
| ICC-ES AC308 |
Acceptance Criteria for Post-Installed Adhesive Anchors in Concrete Elements |
| NFPA 13 |
Standard for the Installation of Sprinkler Systems (cast-in hanger inserts) |
3 Submittals
3.1 Action Submittals
3.1.1The Contractor shall submit the following action submittals for review before fabrication or installation of any covered accessory:
- Product data for each waterstop type, including profile dimensions, material certification, and hydrostatic head rating.
- Product data for the under-slab vapor retarder, including ASTM E1745 class, thickness, and seam-tape specification.
- Product data for bar supports, identifying CRSI class, type, leg height, and base configuration for each cover condition.
- Product data for dovetail anchor slots, including gauge, finish, and foam-fill type.
- Shop drawings for embedded plates, angles, and weld plates, showing dimensions, stud or anchor layout, weld details, and coating.
- Shop drawings for cast-in anchor rods, showing grade, diameter, embedment, projection, hook or head detail, and template geometry.
- Waterstop layout drawings showing every joint, splice location, and the centerpane position relative to the rebar.
- Manufacturer's installation instructions for waterstops, vapor retarder, and hydrophilic strips.
- Mill certificates and material test reports for anchor rods, embedded plate steel, and headed studs.
☐ Waterstop product data and head rating
☐ Vapor retarder product data (ASTM E1745 class)
☐ Bar support product data (CRSI class and type)
☐ Dovetail slot product data
☐ Embedded plate and weld plate shop drawings
☐ Cast-in anchor rod shop drawings
☐ Waterstop layout and splice drawings
☐ Manufacturer installation instructions
☐ Mill certificates and material test reports
3.2.1The Contractor shall submit the following informational submittals:
- Certification that PVC waterstop complies with COE CRD-C 572, with lot test data for tensile strength and elongation.
- Certification that rubber waterstop complies with COE CRD-C 513.
- ASTM E1745 roll-lot class certification for the vapor retarder.
- Welder qualification records per AWS D1.1 for shop and field welding of embedded items.
- Galvanizing certificates per ASTM A123 or ASTM A153 for galvanized embeds and anchors.
☐ PVC waterstop CRD-C 572 certification and lot data
☐ Rubber waterstop CRD-C 513 certification
☐ Vapor retarder ASTM E1745 lot certification
☐ Welder qualification records (AWS D1.1)
☐ Galvanizing certificates (ASTM A123/A153)
3.3 Closeout Submittals
3.3.1The Contractor shall submit the following closeout submittals before final acceptance:
- Inspection records documenting waterstop continuity and splice integrity at each joint before its pour.
- Inspection records documenting vapor retarder repair of tears and penetrations before each slab pour.
- As-installed survey of structural anchor rod positions, with deviations noted against the AISC placement tolerance.
☐ Waterstop continuity and splice inspection records
☐ Vapor retarder repair inspection records
☐ As-installed anchor rod survey
4 Quality Assurance
NOTE Waterstop, anchor rod, and embedded plate work shall be performed by personnel experienced in cast-in-place concrete accessory installation. (4.1)
4.2Field welding of embedded items and headed studs shall be performed by welders qualified under AWS D1.1.
4.3Waterstop splices shall be made by personnel trained in the manufacturer's thermal-fusion or vulcanizing procedure.
NOTE The Engineer of Record's anchor design per ACI 318 Chapter 17 governs the grade, embedment, and edge distance of all cast-in anchorage; the Contractor shall not substitute grade or alter embedment without written approval. (4.4)
4.5A pre-installation conference shall be held before the first below-grade or water-retaining pour to coordinate waterstop layout, splice locations, vapor retarder sequencing, and embed positioning among the concrete, reinforcing, masonry, and MEP trades.
NOTE The masonry coordinator shall review the concrete drawings for dovetail slot vertical spacing against the masonry coursing before any wall containing veneer anchorage is poured. (4.6)
5 Environmental and Service Conditions
NOTE The exposure category drives material and coating selection across this entire scope: bar support class, dovetail and embed coating, anchor rod coating, and waterstop chemical resistance all follow from whether the element is concealed and dry, exposed to weather, below grade in contact with groundwater, or immersed in process or potable water. (5.1)
5.2Bar supports, embedded plates, anchor rods, and dovetail slots shall be selected for the exposure category of their location in accordance with ACI 318 and the CRSI Manual of Standard Practice.
● Concealed interior, dry
○ Exposed to weather
○ Below grade, in contact with soil or groundwater
○ Immersed - process or wastewater
○ Immersed - potable water
NOTE Hydrophilic (swelling) waterstops shall not be installed in standing water or rain, and shall be protected from wetting until concrete is placed, because premature contact with water causes the strip to swell and lose effective sealing capacity. (5.3)
5.3.1Hydrophilic waterstops shall not be installed where they will be exposed to free water before concrete placement.
5.3.2Installed hydrophilic strips shall be protected from rain and groundwater until the concrete is cast against them.
5.4When accessory installation occurs in hot weather, waterstops, hydrophilic strips, and vapor retarder shall be protected from heat distortion and shall be scheduled in accordance with ACI 305.1 so they are not damaged before the pour.
6 Waterstops
NOTE A waterstop is a continuous diaphragm cast across a concrete joint to block the passage of water through that joint; it is the primary defense against leakage in below-grade and water-retaining structures, and it works only if it is continuous, correctly positioned in the joint, and unbroken at every splice. (6.1)
NOTE Waterstop type is selected from the hydraulic head, the joint movement class, the chemical exposure, and any potable-water contact requirement. (6.2)
NOTE The three families differ fundamentally in how they seal. (6.3)
- PVC and rubber waterstops are mechanical diaphragms cast half into each side of the joint; a centerbulb accommodates movement and the ribs anchor the web into the concrete.
- Hydrophilic strips are surface-applied to a formed joint face and seal by swelling under hydration to press against the concrete; they suit tight construction joints and complex penetrations where a cast-in diaphragm is impractical.
- The choice between them is governed by head, movement, and whether the joint geometry can accept a full cast-in diaphragm.
6.4 Waterstop Type and Profile
NOTE Centerbulb (ribbed) PVC or rubber waterstops shall be used at construction and contraction joints where the joint experiences little or no opening movement. (6.4.1)
NOTE Split-flange (dumbbell) or expansion-rated profiles shall be used at expansion and isolation joints where the joint opens, because a fixed centerbulb cannot accommodate that movement. (6.4.2)
6.4.3The waterstop profile shall match the joint movement class shown on the Drawings.
6.4.4A centerbulb waterstop shall not be used at an active expansion joint.
● PVC - ribbed centerbulb (construction/contraction joints)
○ PVC - split-flange dumbbell (expansion joints)
○ Rubber (neoprene/EPDM) centerbulb
○ Hydrophilic swelling strip (bentonite or polyurethane)
6.4.5Waterstop width and web thickness shall be selected from the manufacturer's schedule for the joint width and the design hydrostatic head.
● 3/16 in.
○ 1/4 in.
○ 3/8 in.
6.4.6The design hydrostatic head used to select the waterstop shall be confirmed against the product's rated head.
6.5 Waterstop Material Properties
NOTE PVC waterstop certification covers tensile strength after accelerated alkali extraction and ultimate elongation; all three CRD-C 572 requirements are listed separately below. (6.5.1)
6.5.2PVC waterstop shall comply with COE CRD-C 572.
6.5.5Rubber (neoprene or EPDM) waterstops shall comply with COE CRD-C 513.
6.5.6Tensile strength and elongation properties of rubber waterstops shall be verified per ASTM D412.
6.5.7Hydrophilic waterstops shall be specified by swell pressure and rated head rather than by a single material standard, because bentonite and polyurethane swelling products are evaluated by ICC-ES reports and manufacturer test data rather than a dedicated COE specification.
6.5.8Hydrophilic waterstops shall be furnished with manufacturer test data documenting swell behavior and rated head.
● Bentonite composite
○ Polyurethane (hydrophilic)
3/4 in. x 1 in.
1 in. x 1 in.
6.6 Waterstop Splices and Continuity
NOTE Waterstops must be continuous to function; the most common field failure is a defective or omitted splice that opens a direct leakage path through the joint, so splices are inspected at every transition before the pour. (6.6.1)
6.6.2Waterstop shall be continuous around the entire perimeter of each water-retaining or below-grade element.
6.6.3Straight-run field splices in PVC waterstop shall be made by thermal fusion (heat-welding) following the manufacturer's procedure.
6.6.4All changes of direction, intersections, transitions, and ells shall be made with factory-fabricated splices.
6.6.5Each splice shall be visually inspected for full fusion and the absence of voids, char, or misalignment before concrete is placed.
6.6.6Waterstop shall be held in the centerpane of the joint and tied to the reinforcing so it cannot migrate to the tension face during placement.
6.6.7Waterstop position relative to the reinforcing shall be shown on the waterstop layout drawings joint waterstop sections. 6.7 Waterstop Joint Coverage
6.7.1In any assembly classified as waterproofing or water-retaining, waterstop shall be provided at the wall-to-footing joint and at the slab-to-wall joint; omitting the slab-to-wall joint is a common and consequential error because it leaves an unsealed cold joint at the floor line.
6.7.2Waterstop shall be provided at every construction, contraction, and expansion joint within the waterproofing envelope shown on the Drawings.
6.7.3Waterstop shall be provided at the slab-to-wall cold joint of all below-grade and water-retaining structures.
7 Under-Slab Vapor Retarder Placement
NOTE The under-slab vapor retarder is a plastic membrane placed in direct contact with the soil or granular fill below a slab-on-grade to block soil moisture vapor from rising through the slab and damaging moisture-sensitive flooring, adhesives, and coatings. (7.1)
7.3 Vapor Retarder Class and Thickness
NOTE The vapor retarder class and thickness shall be selected for the slab's intended use, with Class A under occupied slabs that receive moisture-sensitive flooring. (7.3.1)
7.3.2Vapor retarders placed under occupied slabs receiving moisture-sensitive flooring shall be ASTM E1745 Class A.
NOTE A 6-mil vapor retarder shall not be used under occupied slabs, because ACI 302.2R discourages it and it leads to flooring-adhesive and coating failures. (7.3.3)
● Class A (occupied slabs, moisture-sensitive flooring)
○ Class B (parking, storage)
○ Class C (unfinished, light duty)
7.3.4Class A vapor retarder shall exhibit a water vapor permeance not greater than 0.01 perms per ASTM E96.
7.3.5Class A vapor retarder shall exhibit a puncture resistance not less than 2,200 g per ASTM E154.
7.4 Vapor Retarder Lapping and Sealing
7.4.1Adjacent vapor retarder sheets shall be lapped not less than 6 in. and the laps sealed with the manufacturer's pressure-sensitive seam tape in accordance with ASTM E1643.
7.4.2Seams shall be lapped not less than 12 in. where required by the manufacturer or by ASTM E1643 for the membrane class.
7.4.3The vapor retarder shall be turned up and sealed to the perimeter foundation, grade beam, or footing to form a continuous moisture-control plane.
7.5 Vapor Retarder Penetrations and Protection
NOTE Every pipe, conduit, sleeve, and sump that penetrates the vapor retarder shall be sealed with a manufacturer's boot or mastic, because an unsealed penetration voids the membrane locally and admits a moisture path. (7.5.1)
7.5.2Each penetration through the vapor retarder shall be sealed with a prefabricated boot or membrane-compatible mastic.
NOTE Where the vapor retarder is placed over rigid insulation or other sharp substrate, the membrane shall be not less than 10 mil or a blotter/protection layer shall be provided, because thin membranes are punctured by sharp edges. (7.5.3)
7.5.4The installed vapor retarder shall be walk-inspected for tears and holes and all defects repaired with manufacturer's tape before concrete placement.
8 Reinforcing Bar Supports
NOTE Bar supports (chairs and high chairs) hold reinforcing steel at its design elevation so the specified concrete cover is achieved and maintained while liquid concrete is placed around it; cover is what protects the steel from corrosion and gives the section its fire and structural performance, so under-supported bars that sag below minimum cover are a structural and durability defect. (8.1)
8.2 Bar Support Class
8.2.1The bar support class shall be selected for the exposure of its location in accordance with the CRSI Manual of Standard Practice.
8.2.2Class 3 plain wire bar supports shall be used only at concealed interior slab locations not exposed to weather or view.
8.2.3Class 1 plastic-tipped or Class 2 stainless-capped bar supports shall be used at exposed soffits, exposed-to-weather surfaces, and below-grade walls, because plain wire chairs rust at the concrete surface and cause staining and cover cracking.
8.2.4Bar supports in contact with exposed or corrosive surfaces shall be Class 1, Class 1A, or Class 2 as appropriate to the exposure.
● Class 3 - plain wire (concealed interior)
○ Class 1 - plastic-tipped
○ Class 1A - epoxy-coated
○ Class 2 - stainless-capped
8.3 Bar Support Type and Material
8.3.1The bar support type shall be selected for the substrate and pour conditions, with continuous bar chairs used for slab-on-metal-deck and individual chairs or precast blocks used on grade and in formed members.
8.3.2Wire bar supports shall be fabricated from wire conforming to ASTM A1064.
8.3.3Precast concrete bar supports, where used, shall be of a concrete class and strength not less than that of the surrounding concrete and shall provide the specified cover dimension.
● Individual wire chair (BC)
○ Individual wire high chair (HC)
○ Continuous bar chair (slab-on-deck)
○ All-plastic chair
○ Precast concrete block
3/4 in.
1 in.
1-1/2 in.
2 in.
3 in.
4 in.
6 in.
8 in.
8.4 Cover and Support Spacing
8.4.1Concrete cover shall comply with ACI 318 Table 20.6.1 for the exposure and member type, and bar supports shall be sized to deliver that cover.
8.4.2Bottom cover at surfaces exposed to weather shall be not less than 1.5 in. for No. 5 bars and smaller and not less than 2 in. for No. 6 bars and larger, unless the Drawings require greater cover.
8.4.3Reinforcing in slabs-on-grade shall be supported to provide not less than 3/4 in. of cover above the vapor retarder.
NOTE Bar supports shall be spaced in accordance with the CRSI Manual of Standard Practice so that bars do not deflect below minimum cover under the weight of fresh concrete. (8.4.4)
8.4.5Individual chairs supporting top bars in slabs shall be spaced not more than 48 in. on center each way.
8.4.6Individual chairs supporting bottom bars in slabs shall be spaced not more than 36 in. on center each way.
8.4.7Continuous bar chairs on metal deck shall be provided at every supported bar line.
9 Dovetail Anchor Slots
NOTE A dovetail anchor slot is a sheet-metal channel cast flush into a concrete column or wall to receive sliding masonry veneer anchors; it lets the veneer be tied back to the structure without drilling, but it works only if the slot lines up with the masonry coursing and stays clean until the veneer is built. (9.1)
9.2 Slot Material and Gauge
NOTE The dovetail slot material and coating shall be selected for the exposure and the required service life of the veneer attachment. (9.2.1)
9.2.2Dovetail slots shall be galvanized steel for typical exposures and Type 304 or 316 stainless steel where high exposure or long veneer service life is required.
9.2.3Dovetail slots for heavy masonry veneer shall be not lighter than 14 gauge; standard veneer may use 16-gauge slots.
● Galvanized steel (ASTM A123)
○ Type 304 stainless steel
○ Type 316 stainless steel
9.3 Slot Coordination and Protection
NOTE Dovetail slots shall be located on the concrete drawings at the vertical spacing required by the masonry coursing, coordinated with
Masonry Common Results, because slots set at the wrong coursing module create anchor conflicts that cannot be resolved after the pour.
(9.3.1) NOTE Dovetail slots shall be furnished foam-filled and the foam fill shall remain in place until the masonry contractor removes it course by course, because removing the fill early lets concrete debris enter the slot and prevents the anchors from engaging. (9.3.3)
9.3.4Dovetail slot foam fill shall not be removed before the masonry veneer is being installed.
10 Embedded Plates, Angles, and Anchor Rods
NOTE Embedded plates, weld plates, angles, and cast-in anchor rods are the structural attachment points cast into concrete to receive steel framing, equipment, and connections; their grade, embedment, and position are set by the structural engineer's anchorage design per ACI 318 Chapter 17, and their value is destroyed if they are mislocated, because a cast-in anchor cannot be moved after the pour. (10.1)
10.2 Embedded Plates and Weld Plates
10.2.1Embedded plate and angle steel shall conform to ASTM A36 unless the Drawings specify a different grade.
10.2.2Headed studs welded to embedded plates shall be applied by an automatically timed stud-welding process.
10.2.3Deformed bar anchors welded to embedded plates shall be welded per AWS D1.1.
NOTE Embedded plate stud anchorage capacity shall be governed by the breakout, pullout, and pryout provisions of ACI 318 Chapter 17 for the design concrete strength and edge conditions. (10.2.4)
NOTE The coating of embedded plates shall be coordinated with field welding: hot-dip galvanized plates per ASTM A123 cannot be field-welded without grinding off the zinc, so where field welding is required the plate shall be furnished bare with shop primer only. (10.2.5)
10.2.6Where embedded plates require field welding, they shall be furnished with shop primer rather than hot-dip galvanizing, coordinated with Structural Steel Common Results. ● Shop primer (field-weldable)
○ Hot-dip galvanized (ASTM A123)
○ Stainless steel (304/316)
10.3 Cast-In Anchor Rods
NOTE Cast-in anchor rods shall be ASTM F1554 of the grade required by the structural engineer's anchorage design, with Grade 36 used unless a higher grade is shown. (10.3.1)
10.3.2Cast-in anchor rods shall conform to ASTM F1554 of the grade shown on the Drawings.
10.3.3Lower-strength anchor rods for equipment and mechanical pads, where shown, may conform to ASTM A307.
NOTE Anchor rod nuts and washers shall match the rod grade, with Grade 105 rods using heavy hex nuts per ASTM A563 Grade 2H and Grade 36 rods using standard nuts, because a grade mismatch strips the threads. (10.3.4)
10.3.5Anchor rod nuts shall conform to ASTM A563 of the grade compatible with the rod.
10.3.6Plate washers shall be provided where required by the connection design.
● Grade 36
○ Grade 55
○ Grade 105
● Straight rod with nut and plate washer
○ Hooked (L- or J-bolt)
○ Headed
● Bare (interior, dry)
○ Hot-dip galvanized (ASTM A153)
○ Epoxy-coated
○ Stainless steel
10.3.7Anchor rod embedment depth shall be as required by ACI 318 Chapter 17 and the structural design, with hooked rods embedded not less than the code minimum hook development.
1/2 in.
5/8 in.
3/4 in.
7/8 in.
1 in.
1-1/4 in.
Per drawings — anchorage schedule
NOTE Structural anchor rods shall be set with survey-located templates in the first-pour concrete, and the templates shall be on site and verified before placement begins, because rods set without templates or corrected after the pour require re-drilling that reduces capacity. (10.3.8)
10.3.9Structural anchor rods shall be positioned with rigid survey-set templates before concrete is placed.
10.3.10Anchor rod plan position shall be held within ±1/8 in. and elevation within ±1/4 in. per the AISC Code of Standard Practice, unless the Drawings specify a tighter tolerance.
11 Expansion and Construction Joint Accessories
NOTE Preformed expansion-joint filler is a compressible board set into isolation and expansion joints to keep concrete from bonding across the joint and to let the slab or wall move; it is selected by thickness and compressibility for the joint width and the slab use. (11.1)
11.2 Joint Filler Material
11.2.1Asphalt-impregnated fiber expansion-joint filler shall conform to ASTM D1751.
11.2.2Sponge rubber, cork, or closed-cell foam expansion-joint filler shall conform to ASTM D1752.
NOTE The filler material and thickness shall be selected for the joint width and the slab finish, with thicker filler at vehicle-accessible slabs. (11.2.3)
● Asphalt-impregnated fiber (ASTM D1751)
○ Closed-cell polyethylene foam (ASTM D1752)
○ Sponge rubber (ASTM D1752)
● 1/2 in.
○ 3/4 in.
○ 1 in.
11.3 Joint Filler Installation
11.3.1Expansion-joint filler shall be set true to line and grade and held against displacement during concrete placement.
11.3.2Filler shall be continuous across the full depth and length of the joint, with butt joints in the filler tightly closed.
NOTE Where the joint is to receive a surface sealant, the filler depth shall leave the sealant reservoir shown on the Drawings, with the sealant itself furnished under
Exterior Weather Sealants.
(11.3.3) 12 Cast-In Inserts and Sleeves
NOTE Cast-in hanger inserts, sleeves, and blockouts are set before the pour to receive later trades; whether they are furnished under this scope or by the trade that uses them shall be established on the Drawings to avoid gaps and duplication. (12.1)
12.2Cast-in inserts for fire sprinkler hangers shall be located to coordinate with the hanger and sway-brace spacing required by NFPA 13.
12.3Pipe sleeves, conduit sleeves, and blockouts that pass through the vapor retarder or a waterproofing element shall be sealed in accordance with the waterstop and vapor-retarder provisions of this standard.
13 Delivery, Storage, and Handling
13.1Waterstops shall be stored flat, out of direct sunlight, and protected from kinking, ozone, and contamination that would impair fusion at splices.
13.2Hydrophilic waterstops shall be stored in their sealed packaging and protected from moisture until immediately before installation, because they begin to swell on contact with water.
13.3Vapor retarder rolls shall be stored protected from puncture and prolonged ultraviolet exposure.
13.4Anchor rods, embedded plates, and dovetail slots shall be stored off the ground and protected from bending and from damage to galvanized or stainless surfaces.
14 Quality Control and Inspection
NOTE Because accessory defects become invisible and unrepairable once concrete hardens, the controlling quality-control activity in this scope is the pre-pour inspection that confirms each accessory is correct before placement begins. (14.1)
14.2Before each below-grade or water-retaining pour, the waterstop shall be inspected for continuity, correct centerpane position, secure ties, and sound splices.
14.3Before each slab pour, the vapor retarder shall be inspected for sealed laps, sealed penetrations, and the repair of all tears.
14.4Before each pour containing structural anchor rods, the rod positions shall be verified against the survey template and the Drawings.
14.5After each pour containing structural anchor rods, the as-installed rod positions shall be surveyed and deviations recorded against the placement tolerance.
15 Warranty
15.1The Contractor shall warrant that accessories were furnished and installed in accordance with this standard, the approved submittals, and the manufacturers' instructions.
15.2The Contractor shall repair or replace, at no cost to the Owner, leakage at waterstop joints and moisture failures attributable to defective vapor retarder installation that appear within the warranty period.