NONMETALLIC ACCESSORY MATERIALS FOR CONCRETE PAVEMENT AND CONCRETE STRUCTURES
932-1 Joint Materials.
932-1.1 Preformed Joint Filler for Pavement and Structures: Preformed joint filler
shall meet the requirements of AASHTO M 153, ASTM D8139, AASHTO M 213, or cellulose fiber types meeting all the requirements of AASHTO M 213 (except for the asphalt content) is acceptable provided they contain minimums of 0.2% zinc borate as a preservative and 1.5% waterproofing wax. For AASHTO M 153, unless a particular type is specified, either Type I, Type II or Type III may be used. Preformed joint fillers shall have a thickness equal to the width of the joint required, and sha ll be furnished in lengths equal to the widths of the slabs in which they are to be installed, except strips which are of a length not less than the distance between longitudinal joints, or between longitudinal joint and edge, may be used if laced or clipp ed together in a manner approved by the Engineer. The depth and shape of the joint filler shall conform to the dimensions shown in the Plans. For doweled joints, proper provision shall be made for the installation of the dowels.
932-1.1 1 Certification: The Contractor shall submit to the Engineer a
certification confirming that the preformed joint filler meets the requirements of this Section. The certification shall conform to the requirements of Section 6.
932-1.2 Joint Sealer for Pavement and Structur es:
932-1.2 1 General: This Specification covers joint sealer intended for use in
sealing joints in asphaltic concrete pavement and portland cement concrete pavement. These materials may also be used to seal joints in portland cement concrete bridges and other structures.
932-1.2 2 Material: The joint sealant shall be composed of a mixture of
materials, typically but not limited to bituminous based, that will melt when heated for application and then solidify to form a resilient and adhesive compound ca pable of sealing joints in portland cement concrete and asphaltic concrete against the infiltration of moisture and foreign materials throughout normal pavement conditions and at ambient temperatures. The manufacturer shall have the option of formulating t he material according to their Specifications. However, the requirements delineated in this Specification shall apply regardless of the type of formulation used. The material shall cure sufficiently to not flow from the joint or be picked up by vehicle tir es after 3 hours at 77°F. The material shall be capable of a uniform application consistency suitable for filling joints without the inclusion of large air holes or discontinuities and without damage to the material. Materials for pavement joints shal l be tested according to ASTM D5329.
932-1.2 2.1 Physical Requirements of Joint Sealants for Portland
Cement Concrete Only: FY 2023-24 Return to Table of Contents Table 932-1 Parameter Limits Pour Point At least 20°F lower than the safe heating temperature as stated by the manufacturer. Cone-Penetration, Non - immersed at 77°F, 150 g, 5 s Less than or equal to 90 mm Flow at 140°F, 5 h Less than or equal to 5.0 mm Bond, Non -immersed, 0°F for 5 cycles* No cracking, separation, or opening that at any point is over 1/4 inch deep, in the sealant or between the sealant and the substrate. *The depth of a crack, separation or opening shall be measured perpendicular to the side of the sealant showing the defect. A t least two test samples in a group of three representing a given sample of sealant shall meet this requirement.
932-1.2 2.2 Physical Requirements of Joint Sealants for Portland
Cement Concrete and /or Asphaltic Concrete: Table 932-2 Parameters Limits Pour Point At least 20° lower than the safe heating temperature as stated by the manufacturer. Cone-Penetration, Non - immersed at 77°F, 150 g, 5 s Less than or equal to 90 mm Flow at 140°F, 5 h Less than or equal to 3.0 mm Bond, Non -immersed, -20°F for 3 cycles, 50% extension* No cracking, separation, or opening that at any point is over 1/4 inch deep, in the sealant or between the sealant and the substrate. Resilience at 77°F Recovery greater than or equal to 60% Asphaltic Concrete Compatibility at 140°F No failure in adhesion, formation of an oily exudates at the interface between the sealant and the asphaltic concrete, or softening or other deleterious effects on the asphaltic concrete or sealant. *The depth of a crack, separation or opening shall be measured perpendicular to the side of the sealant showing the defect. At least two test samples in a group of three representing a given sample of sealant shall meet this requirement.
932-1.2 3 Approved Product List (APL): The joint sealant materials used shall
be one of the products listed on the Department’s APL. Manufacturers seeking evaluation of their products shall submit product datasheets, performance test reports from an independent laboratory showing the product meets the requirements of this section, and an APL application in accordance with Section 6. Information on the APL application must identify the sealant type.
932-1.2 4 Shipment: The material shall be delivered in containers plainly marked
with the manufacturer’s name or trademark product nam e, LOT number and date of expiration.
932-1.2 5 Bond Breaker Rod: The bond breaker rod shall be a closed cell,
expanded polyethylene foam rod of the size and dimensions shown in the Plans. It shall be compatible with the joint sealant and no bond or reac tion shall occur between the rod and the sealant. All bond breaker rods installed shall be covered by a sealant at the end of each workday. FY 2023-24 Return to Table of Contents Bond breaker tape approved by the sealant manufacturer may be used in lieu of bond breaker rod when sealing ra ndom cracks.
932-1.3 Low Modulus Silicone Sealant Materials:
932-1.3 1 Low Modulus Silicone Sealants : Silicone sealant shall be furnished in
a one part or pre -measured two -part formulation meeting the requirements specified herein. Acetic acid cure sealants are not acceptable. A primer as specified in
932-1.4 for bonding sealant to concrete shall be used if required by the manufacturer. When a
manufacturer’s product is tested and approved by the Department using a primer, primer will be required for project installation. Do not use Low Mod ulus Silicone Sealants Types A, B or C for bridge expansion joints. Silicones shall be identified in the following manner: Type A - A low modulus, non -sag (non-self-leveling) silicone formulation, used in sealing horizontal and vertical joints in cement concrete pavements and bridges (i.e., concrete -concrete joints). Tooling is required. Type B - A very low modulus, self -leveling silicone formulation, used in sealing horizontal joints (including joi nts on moderate slopes) in cement concrete pavements and bridges (i.e., concrete -concrete joints). Tooling is not normally required. Type C - An ultra-low modulus, self -leveling silicone formulation, used in sealing horizontal joints (including joints on moderate slopes) in cement concrete pavements and bridges (i.e., concrete -concrete joints). It can also be used to seal the joints between cement concrete pavements and asphalt concrete shoulders (including asphalt -asphalt joints). Tooling is not normal ly required. Type D - An ultra-low modulus, self -leveling silicone formulation, cold-applied, rapid -cure, used to seal expansion joints that experience both thermal and/or vertical movements. The material must cure by chemical reaction and not by evapo ration of solvent or fluxing of harder particles. Tooling shall not be required. Use in accordance with Standard Plans, Index 458-110 for bridge deck expansion joints with backer rods or as shown in the Plans for other joints with or without backer rods.
932-1.3 2 Physical Requirements :
Table 932-3 Silicone Sealant Type Test Method Type A Type B Type C Type D Flow ASTM D5893 No Flow Slump (maximum) ASTM D2202 0.3 inches Extrusion rate (minimum) ASTM C1183, Procedure A 20 ml/min 20 ml/min 20 ml/min 20 ml/min Tack-free time at 77 ± 3ºF and 45 to 55% Relative Humidity ASTM C679 90 minutes maximum 180 minutes, maximum 180 minutes, maximum 20 – 60 minutes Specific gravity ASTM D792, Method A 1.1 to 1.515 1.10 to 1.40 1.1 to 1.5 1.26 to 1.34 Durometer hardness, Shore A (Cured seven days at 77 ± 3ºF and 50 ± 5% Relative Humidity) ASTM D2240 10-25 FY 2023-24 Return to Table of Contents Table 932-3 Silicone Sealant Type Test Method Type A Type B Type C Type D Durometer hardness, Shore 00 (Cured 21 days at 77 ± 3ºF and 50 ± 5% Relative Humidity) ASTM D2240 40-80 20-80 Tensile stress (maximum) at 150% elongation ASTM D412 (Die C) 45 psi 40 psi 15 psi Elongation (Cured seven days at 77 ± 3ºF and 50 ± 5% Relative Humidity) ASTM D412 (Die C) 800% minimum 600% minimum Elongation (Cured 21 days at 77 ± 3ºF and 50 ± 5% Relative Humidity) ASTM D412 (Die C) 800% minimum 800% minimum Ozone and Ultraviolet Resistance ASTM C793 No chalking, cr acking or bond loss after 5,000 hours, minimum. Bond to cement mortar briquets (primed if required) (Cured seven days at 77 ± 3ºF and 50 ± 5% Relative Humidity) AASHTO T 132 50 psi minimum Bond to cement mortar briquets (Cured 21 days at 77 ± 3ºF and 50 ± 5% Relative Humidity) AASHTO T 132 40 psi minimum 35 psi minimum Movement Capability ASTM C719 No adhesive or co hesive failure and adhesion, 10 cycles at -50 to +100% No adhesive or cohesive failure and adhesion, 10 cycles at +100/- 50 % Portland Cement Mortar: Briquets shall be molded and cured 28 days minimum in accordance with AASHTO T 132. Saw cut c ured briquets in half, clean, and dry at 230°, plus or minus 5ºF . Bond the two halves together with a thin section of sealant. After cure of sealant, briquets shall be tested in accordance with AASH TO T 132.
932-1.3 3 Field Cure: Six-inch samples of the sealant shall be taken by the
Engineer from the joint at the end of a two-week curing period and tested for durometer hardness (by FM ANSI/ASTM D2240), except that the requirements of a 1-inch sample width shall not apply. A minimum hardness of 7.0 is required as evidence of adequate cure.
932-1.3 4 Approved Product List : The low modulus silicone sealant used shall
be one of the products listed on the APL. Manufacturers seeking evaluation of their products shall submit product datasheets, performance test reports from an independent laboratory FY 2023-24 Return to Table of Contents showing the product meets the requirements of this Section, an infrared identification curve (2.5 to 15 μm) and a n APL application in accordance with Section 6. Information on the APL application must identify the sealant type.
932-1.3 5 Shipment : The material shall be delivered in c ontainers p lainly mark ed
with the manufacturer’s name or trademark product name, LOT number and date of expiration.
932-1.3 6 Primer: When required by the manufacturer’s product, a primer shall
be used. The manufacturer shall perform quality control t ests on each LOT of sealant primer material furnished to each project and submit a certified report that each LOT of primer material furnished to a project meets the company’s specifications for that product and the primer is suitable for its intended use. Sealant primer material shall be delivered in containers plainly marked with the manufacturer’s name or trademark and product name, LOT number and date of expiration.
932-1.3 7 Backer Rod and Tape Bond Breakers: Backer rods and tape shall be
compatible with the joint sealant and approved by the sealant manufacturer. No bond or reaction shall occur between the rod and the sealant.
932-1.3 8 Installation: Installation, material selection, joint dimensions, bond
breaker suitability (by type and project) shall be in agreement with the requirements of Standard Plans, Indexes 350-001 and 458 -110. Any modifications or exceptions to these requirements shall be shown in the Plans. For new construction projects or gene ral use where the joints to be sealed have uniform width, a closed cell, expanded polyethylene foam backer rod bond breaker shall be required. For rehabilitation projects and similar joint seals where the joints to be sealed have irregular width, an open c ell, expanded polyethylene foam backer rod bond breaker with an impervious skin shall be required. The backer rod shall be compatible with the joint sealant. No bond or reaction shall occur between the rod and the sealant. Tape bond breaker approved by the sealant manufacturer may be used in lieu of backer rod bond breaker when sealing joints and/or random cracks, as required. Type D Silicone sealant shall be placed when the ambient temperature is rising and is between 55°F and 85°F and the tempera ture is expected to rise for the next three hours minimum to provide to adequate joint opening and compression of the sealant during curing. All installed bond breakers shall be covered by sealant at the end of each workday. A tolerance in cross -sectional height at midpoint of minus 1/16 inches to plus 3/16 inches will be allowed to the nominal values shown for each joint width on the plan sheet. The Engineer shall check one joint for each 1,000 feet of roadway by cutting out specimens. If the cross s ection of the cut specimen is out of the allowable range, additional specimens shall be taken as follows: One joint eve ry 100 feet of pavement, not to exceed 500 feet. If the average of the specimens is out of tolerance, the Contractor shall remove and replace the entire 500-foot section at no additional expense to the Department. Installation tolerance shall be verified at 1,000-foot intervals.
932-1.4 Pre-cured Silicone Sealant:
FY 2023-24 Return to Table of Contents
932-1.4 1 General: Pre-cured silicone sealants are intended for s ealing vertical
joints on concrete surfaces. Type V1 sealant is intended for contraction joints or joints with movements less than 1/4 inches. Type V2 sealant is intended for expansion joints not exceeding 200% of the nominal joint opening. Type V2 sealant may be substituted for Type V1 sealant. The joint sealant must be listed on the APL.
932-1.4 2 Physical Requirements: Sealant material shall be a nominal
1/16 inches thick, available in standard widths from 1 inch to 6 inches, colored to match the finish surface coating of the concrete, and meet the following minimum testing requirements: Table 932 -4 Test Property Description Test Method Type V1 Type V2 Minimum Movement, Cohesion/Adhesion ASTM C1523 100% 200% Dry/Room Temperature Loss of Adhesion/Cohesion ASTM C1523 None None Water Immersion Loss of Adhesion/Cohesion ASTM C1523 None None Frozen Loss of Adhesion/Cohesion ASTM C1523 None None Heat Loss of Adhesion/Cohesion ASTM C1523 None None Artificial Weathering Loss of Adhesion/Cohesion ASTM C1523 None None Tear Propagation ASTM C1523 NT or PT (No Tear or Partial/Knotty Tear) NT or PT (No Tear or Partial/Knotty Tear) Ultimate Elongation ASTM D412 250% 500%
932-1.4 3 Approved Product List : The pre-cured silicone sealant used shall be
one of the products listed on the APL. Manufacturers seeking evaluation of their product shall submit an application in accordance with Section 6. Applications must include test results, an infrared identification curve (2.5 to 15 µm), and a product data sheet with the recommended adhesive and installation requirements.
932-1.5 Compression Seals and Adhesive Lubricant
932-1.5 1 Preformed Elastomeric Compression Seals: Preformed Elastomeric
Compression Seals shall meet the requirements of ASTM D2628 except that immersion oil IRM 903 may be sub stituted for Oil No. 3 in the Oil Swell test procedure.
932-1.5 2 Compression Seal Adhesive Lubricant: Compression seal adhesive
lubricant shall meet the requirements of ASTM D4070. The material shall be fluid from 5 °F to 120°F (-15°C to 49°C).
932-1.5 3 Certification: The manufacturer shall submit a certified test report for
each LOT of material furnished to each project along with a statement certifying that the material FY 2023-24 Return to Table of Contents conforms to this specification and identifying the project number and manufacture r’s LOT number.
932-1.5 4 Verification Samples: Provide verification samples in accordance with
Section 6.
932-2 Structure Bearing Pads.
932-2.1 General: Furnish elastomeric structure bearing pads as shown in the Contract
Documents. Elastomeric bearings as defined herein shall include plain pads (elastomer only) and laminated bearings with steel or fabric laminates. Flash tolerance, finish and appearance o f bearings shall meet the requirements of the latest edition of the Rubber Handbook as published by the Rubber Manufacturer’s Association, Inc. RMA -F3-T.063 for molded bearings, and RMA-F2 for extruded bearings.
932-2.2 Materials: Use elastomer that is Gr ade 2 or higher, as defined in the AASHTO
LRFD Bridge Design Specifications, crystallization resistant, 100% virgin polychloroprene (neoprene). Use only new materials; reclaimed material is not allowed in the finished product. No wax, anti -ozonants, or oth er foreign material may accumulate or be applied to the surfaces of the bearing. The steel layers of the laminated pads shall utilize 10-gauge steel sheet (0.1345 inches thick). The steel utilized for the steel layers and for external load bearing plates (if specified) shall meet the requirements of ASTM A36 or ASTM A1011 Grade 36 Type I steel sheet. External load bearing plates shall be finished or machined flat to within 0.01 inches. The bottom surfaces of external load plates (masonry plates) designed to rest on bearing pads shall not exceed an out of flatness value of 0.0625 inches. External load bearing plates shall be protected from rust until all exposed surfaces can be field painted. Any rust inhibitor shall be removed from all surfaces prior to weld ing.
932-2.3 Sampling: A sampling LOT shall consist of a maximum of 100 bearing pads of a
single type of bearing (plain, steel laminates, fabric laminates), of the same design, materials, thickness, and manufacturer, referred to here as “like pads”, delivered to the project sit e or to an offsite storage facility within the State of Florida in reasonable proximity to the project site as determined by the Engineer. Organize stockpiled pads into groups of like pads by LOT so that they can be readily identified and sampled by the En gineer.
932-2.3 1 Ancillary Structure Pads: Sampling is not required, and acceptance is
by certification.
932-2.3 2 Bridge Structure Pads: When the total number of like pads, as defined
in 932-2, consists of a LOT of 10 or less, sampling is not required, and acceptance is by certification. Submit to the Engineer a certification conforming to the requirements of Section 6 stating that the structure bearing pads meet the requirements of this Section. For LOT sizes of like pads that exceed 10, two bridg e bearing pads per LOT will be selected by the Engineer, one for testing and one for verification in the event of a failing test result. LOTs will be sampled only after all like pads in the LOT are at the project site or in an offsite storage facility. Sam ples shall consist of complete pads as detailed in the Plans. Furnish additional complete bridge bearing pads to replace those selected for testing. Bridge bearing pads shall be available for sampling a minimum of three weeks prior to their installation. Submit the sample bridge bearing pads to a Department approved independent laboratory for testing. Shipping and testing will be at the Contractor’s expense
932-2.4 Dimensional Tolerances: Fabricate elastomeric bearings within the dimensional
tolerances spe cified below or as designated in the Plans. If any of the dimensions are outside the limits specified, the bearing pad shall be rejected. FY 2023-24 Return to Table of Contents Table 932 -5 Measurement Tolerance (inches) Overall vertical dimensions Design thickness ≤1.25 inches -0, +0.125 Design thickness 1.25 inches -0, +0.25 Overall horizontal dimensions measurements ≤36 inches -0, +0.25 measurements 36 inches -0, +0.50 Thickness of individual layers of elastomer (laminated bearings only) at any point within the bearing Variation from a plane parallel to the theoretical surface (as determined by measurements at the edge of the bearings) Top (slope relative to bottom) ≤0.005 radians Sides 0.25 Position of exposed connection members Edge cover of embedded laminates of connection members Position and size of holes, slots, or inserts Note: If the variation in thickness of individual layers of elastomer is greater than that allowed in the tolerance for Measurement
932-2.5 Ancillary Structures - Plain, Fiber Reinforced, or Fabric Laminated
Bearing Pads:
932-2.5 1 Plain Pads: Plain pads shall be either molded, extruded, or vulcanized
in large sheets and cut to size. Cutting shall not heat the material and shall produce a smooth finish conforming to ANSI B46.1, 6.3 µm (0.248 mils). Plain pads shall be molded or extruded to the finished thickness. Plying pads of lesser thickness together shall not be permitted. External load plates, when used, shall be protected from rusting and shall be hot bonded by vulcanization during the primary molding process. The finished pads shall withs tand a minimum uniform compressive load of 1200 psi when tested in accordance with FM 5-598.
932-2.5 2 Fiber Reinforced or Fabric Laminated Pads: Fiber reinforced pads
shall be constructed with a homogeneous blend of elastomer and random -oriented high st rength synthetic fiber cords. Bearing pads may be molded and vulcanized in large sheets and cut to size. Cutting shall be performed so as to prevent heating and must produce a smooth finish conforming to ANSI B46.1. Fabric laminated bearings shall be co nstructed of multiple layers of fabric and elastomer. The fabric shall be composed of 8-ounce cotton duck and the pads manufactured in accordance with Military Specification MIL -C-882. Ensure the fabric is free of folds or ripples and parallel to the top a nd bottom surfaces. Fiber reinforced and fabric pads shall withstand a minimum uniform compressive load of 2,400 psi when tested in accordance with FM 5-598.
932-2.5 3 Certification: The Contractor shall submit to the Engineer a
certification conformi ng to the requirements of Section 6 stating that the ancillary structure pads meet the requirements of this Section and the physical and heat resistance properties of Section 6 FY 2023-24 Return to Table of Contents of FM 5-598. For bearing pads to be used under metal railings, submit certifica tion indicating compliance with either, ASTM D2000 M1 BC (suffix grade 1 - basic requirements, type B, class C) or the physical and heat resistance properties of FM 5-598.
932-2.6 Bridge Structures - Elastomeric Bearing Pads: Bearings with steel laminates
shall be cast as a unit in a mold and bonded and vulcanized under heat and pressure. Bearings with steel laminates which are designed to act as a single unit with a given shape factor must be manufactured as a single unit. The mold shall have a standard s hop practice mold finish. The internal steel laminates shall be blast cleaned to a cleanliness that conforms to SSPC -SP6 at the time of bonding. Plates shall be free of sharp edges and burrs and shall have a minimum edge cover of 0.25 inches. If external load plates (sole plates) are required (as specified in the Contract Documents) to be hot bonded to the bearing , it shall be done during vulcanization. Edges of the embedded steel laminates, including the laminate restraining devices and around holes and slots shall be covered with not less than 3/16 inches of elastomer or the minimum edge cover specified in the Plans. All exposed laminations or imperfections that result in less than the specified elastomer cover of any surface of the steel laminations shall be repaired by the manufacturer at the point of manufacture. The repair shall consist of sealing the imperfections flush on the finished pads with a bonded vulcanized patch material compatible with the elastomeric bearing pad. Repairs employing caul king type material or repairing the bearings in the field will not be permitted.
932-2.6 1 Testing: Test bridge bearing pads in accordance with FM 5-598.
Laminated bridge bearings must meet a minimum compressive load of 2,400 psi and non - laminated (plain ) pads must meet a minimum compressive load of 1,200 psi. If any properties are identified as noncompliant with the criteria specified, the bearing shall be rejected and the verification sample tested. If the verification sample test results are also nonco mpliant, the LOT shall be rejected. A list of approved testing laboratories can be found on the Department’s website. The URL for obtaining this information, if available, is: https://mac.fdot.gov/reports .
932-2.6 2 Marking: Each elastomeric bearing pad shall be permanently marked.
The marking shall consist of the order number, LOT number, pad identification number, elastomer type, and shear modulus or hardness (when shear modu lus is not specified). Where possible, the marking shall be on a face of the bridge bearing pad that will be visible after erection of the structure.
932-2.6 3 Certified Test Results: For bridge bearing pads, the Contractor shall
submit to the Engineer c omplete certified test results from the independent laboratory for all tests specified, properly identified by LOT and project number .
932-2.6 4 Certification: The Contractor shall submit to the Engineer a
certification conforming to the requirements of Section 6 stating that the bearing pads, (plain, fiber reinforced or elastomeric) meet the requirements of this Section. The certification shall designate the bearings in each LOT and state that each of the bearings in the LOT was manufactured in a reasona bly continuous manner from the same batch of elastomer and cured under the same conditions.
932-3 Fiber Reinforced Polymer (FRP) Reinforcing Bars.
932-3.1 General: Obtain FRP reinforcing bars from producers currently on the
Department’s Production Facilit y Listing. Producers seeking inclusion on the list shall meet the requirements of Section 105. Use only solid, round, thermoset basalt fiber reinforced polymer (BFRP), glass fiber reinforced polymer (GFRP) or carbon fiber reinforced polymer (CFRP) reinfo rcing bars. FY 2023-24 Return to Table of Contents Single or multi -wire CFRP strands are permitted as spirals for reinforcing in concrete piling where specified in the Contract Documents . Bars shall be manufactured using pultrusion, variations of pultrusion, or other suitable processes noted in the producer’s Quality Control Plan, subject to the approval of the State Materials Office (SMO). For BFRP and CFRP bars only vinyl ester or epoxy resin systems are permitted. For GFRP, use only bars manufactured using vinyl ester resin systems an d glass fibers classified as E -CR or R that meet the requirements of ASTM D578.
932-3.2 Bar Sizes and Loads: The sizes and loads of FRP reinforcing bars shall meet the
requirements in Table 932-6. The measured cross -sectional area, including any bond enha ncing surface treatments, shall be determined according to Table 932-7. Table 932-6 Sizes and Tensile Loads of FRP Reinforcing Bars Bar Size Designation Nominal Bar Diameter (in) Nominal Cross Sectional Area (in2) Measured Cross-Sectional Area (in2) Minimum Guaranteed Tensile Load (kips) Minimum Maximum BFRP and GFRP Bars CFRP (Type II) Single & 7-Wire Strands CFRP (Type I) Bars 2.1-CFRP 0.21 0.028 0.026 0.042 - 7.1 - 2 0.250 0.049 0.046 0.085 6.1 - 10.3 2.8-CFRP 0.280 0.051 0.048 0.085 - 13.1 - 3 0.375 0.11 0.104 0.161 13.2 - 20.9 3.8-CFRP 0.380 0.09 0.087 0.134 - 23.7 - 4 0.500 0.20 0.185 0.263 21.6 - 33.3 5 0.625 0.31 0.288 0.388 29.1 - 49.1 6 0.750 0.44 0.415 0.539 40.9 - 70.7 6.3-CFRP 0.630 0.19 0.184 0.242 - 49.8 - 7 0.875 0.60 0.565 0.713 54.1 - - 7.7-CFRP 0.770 0.29 0.274 0.355 - 74.8 - 8 1.000 0.79 0.738 0.913 66.8 - - 9 1.128 1.00 0.934 1.137 82.0 - - 10 1.270 1.27 1.154 1.385 98.2 - -
932-3.3 Material Requirements: Producers shall submit to the State Materials Office
(SMO), a test report of the physical and mechanical property requirements in Table 932-7 and Table 932-8 as applicable for the types and sizes of FRP reinforcing produced. Qualification testing shall be conducted by an independent laboratory approved by the Department for performing the FRP test methods. Three production LOTS shall be randomly sampled at the production facility by a designee of the SMO . The minimum number of specimens per production LOT shall be as FY 2023-24 Return to Table of Contents indicated in Table 932-7 and Table 932-8. The coefficient of variation (COV) for each test result shall be less than 6%. Outliers shall be subject to further investigation per ASTM E178. If the COV exceeds 6%, the number of test specimens per production LOT may be doubled, a maximum of two times, to meet the COV requirement. Otherwise, the results shall be rejected. A production LOT is defined as a LOT of FRP reinforcing produced from start to finish with the same constituent materials used in the same proportions without changing any production parameter, such as cure temperature or line sp eed. FY 2023-24 Return to Table of Contents Table 932-7 Physical and Mechanical Property Requirements for Straight FRP Reinforcing Bars Property Test Method Requirement Specimens per LOT Fiber Mass Fraction ASTM D2584 or ASTM D3171 ≥70% 5n Short-Term Moisture Absorption ASTM D570, Procedure 7.1; 24 hours immersion at 122°F ≤0.25% 5m Long-Term Moisture Absorption ASTM D570, Procedure 7.4; immersion to full saturation at 122°F ≤1.0% 5m Glass Transition Temperature (Tg) ASTM D7028 (DMA) or ASTM E1356 (DSC; Tm)/ASTM D3418 (DSC; Tmg) ≥230°F ≥212°F 3m Total Enthalpy of Polymerization (Resin) ASTM E2160 Identify the resin system used for each bar size and report the average value of three replicates for each system -- Degree of Cure ASTM E2160 ≥95% of Total polymerization enthalpy 3n Measured Cross - Sectional Area ASTM D7205 Within the range listed in Table 932-6 10n Guaranteed Tensile Loada ≥ Value listed in Table 932-6 Tensile Modulus ≥6,500 ksi for BFRP and GFRP ≥18,000 ksi for CF RP (Type I) Bars > 22,400 ksi for CFRP (Type II) Strands Alkali Resistance with Load ASTM D7705; Procedure B, set sustained load to 30% of value in Table 932 -6; 3 months test duration, followed by tensile strength per ASTM D7205 ≥ 70% Tensile strength retention for BFRP & GFRP ≥ 95% Tensile strength retention for CFRP 5m Transverse Shear Strength ASTM D7617 >22 ksi 5n Horizontal Shear Strengthp ASTM D4475 >5.5 ksi 5n Bond Strength to Concrete, Block Pull-Out ACI 440.3R, Method B.3 or ASTM D7913 >1.1 ksi for Bars >0.9 ksi for Strands 5m a – Guaranteed tensile load shall be equal to the average test result from all three LOTs minus three standard deviations. n – Tests shall be conducted for all bar sizes produced. m – Tests shall be conducted for the smallest, median, and largest bar size produced. p – Only required for BFRP bars. FY 2023-24 Return to Table of Contents
932-3.3 1 Additional Requirements for Bent FRP Bars: For all bars produced
by bending straight solid FRP bars before the resin is fully cured, the minimum inside bend radius shall be at least three times the nominal diameters for bar sizes 2 through 8; and four times the nominal diameters for sizes 9 and 10 . The straight portion of a bent FRP reinforcing bar shall be extracted with sufficient length for tensile testing according to Table 932-8. When the bent shape does not allow for the tensile testing of one of its straight portions, test specimens produ ced at the same time during the same production LOT shall be used. Table 932-8 Physical and Mechanical Property Requirements for Bent FRP Reinforcing Bars Property Test Method Requirement Specimens per LOT Fiber Mass Fraction – Bent Portionb ASTM D2584 or ASTM D3171 ≥70% 5m Short-Term Moisture Absorption – Bent Portionb ASTM D570, Procedure 7.1; 24 hours immersion at 122°F ≤0.25% 5m Long-Term Moisture Absorption – Bent Portionb ASTM D570, Procedure 7.4; immersion to full saturation at 122°F ≤1.0% 5m Glass Transition Temperature – Bent Portionb ASTM E1356 (DSC; Tm) /ASTM D3418 (DSC; Tmg) ≥212°F 3m Degree of Cure – Bent Portionb ASTM E2160 ≥95% of Total polymerization enthalpy 3m Measured Cross -Sectional Area – Straight Portion ASTM D7205 Within the range listed in Table 932-6 5m Guaranteed Tensile Loada – Straight Portion ≥ Value listed in Table 932-6 Tensile Modulus – Straight Portion ≥6,500 ksi for BFRP and GFRP ≥18,000 ksi for CF RP (Type
932-3.4 Material Acceptance : Submit to the Engineer a certificate of analysis for each
production LOT from the producer of the FRP reinforcing bars, confirming compliance with the requirements of this Section.
932-3.4 1 Sampling: The Engineer will select a minimum of six straight bars with
minimum lengths of 7 feet each and a minimum of five bent bars or spiral bends/revolutions from each shipment, representing a random production LOT, per bar size of FRP reinforcing for testing in accordance with Table 932-9. Testing shal l be conducted, at the Contractor’s expense, by a Department approved independent laboratory. Each test shall be replicated a minimum of three times per sample. Submit the test results to the Engineer for review and approval prior to installation . Testing will not be required for bars to be used solely as reinforcement for sheet pile bulkheads, but LOT samples will still be selected and retained by the Engineer until final acceptance of the work. FY 2023-24 Return to Table of Contents Table 932-9 Testing Requirements for Project Material Accept ance of FRP Reinforcing Bars Property Test Method Requirement Test Required for Straight Bar Test Required for Bent Bar Fiber Mass Fraction ASTM D2584 or ASTM D3171 ≥70% Yes Yes – bent portionb Short-Term Moisture Absorption ASTM D570, Procedure 7.1; 24 hours immersion at 122°F ≤0.25% Yes Yes – bent portionb Glass Transition Temperature ASTM D7028 (DMA) or ASTM E1356 (DSC; Tm)/ ASTM D3418 (DSC; Tmg) ≥230°F ≥212°F Yes Yes – bent portionb Degree of Cure ASTM E2160 ≥95% of Total polymerization enthalpy Yes Yes – bent portionb Measured Cross - sectional Area ASTM D7205 Within the range listed in Table 932-6 Yes Yes – straight portion Guaranteed Tensile Loada ≥ Value listed in Table 932-6 Yes No Tensile Modulus ≥6,500 ksi for BFRP and GFRP ≥18,000 ksi for CFRP (Type I) Bars ≥22,400 ksi for CFRP (Type II) Strands Yes No a – Guaranteed tensile load shall be equal to the average test result from all three LOTs minus three standard deviations. b – Bent portion specimens shall be extracted from a central location within a 90° bend.
932-4 FRP Spirals for Concrete Piling.
FRP Spirals for reinforcing in concrete piling shall be CFRP conforming to the requirements of Section 933 or 932-3 for CFRP (Type II) .
932-5 Polymer Slurries for Drilled Shafts.
932-5.1 General Requirements: Synthetic polymer slurry are products that can be used
to facilitate the construction of drilled shafts. The type of synthetic polymers used in drilling slurry are long chain -like hydrocarbon molecules which interact with each other, with the soil, and with the water to effectively increase t he viscosity of the fluid . Commercial polymer products may come in powder, granular or liquid forms and shall be fully mixed with potable water prior to introducing it to the drilled shaft excavation.
932-5.2 Product Acceptance: All materials shall be one of the products listed on the
Department’s Approved Product List (APL). Manufacturers seeking evaluation of products for FY 2023-24 Return to Table of Contents inclusion on the APL shall submit an application in accordance with Section 6 and including documentation that meets the requirements of Table 932-10. A separate application must be submitted for each product type to be evaluated, showing that the product meets the applicable requirements. Table 932-10 Documentation Requirements Documentation Requirements Installation Instructions Include mixing and disposal instructions and the Safety Data Sheet (SDS). Product Photo Displays the significant features of the product as required in this section. Displays location of Manufacturer name and model number. Product Label Photo Displays the Product Name Technical Data Sheet Uniquely identifies the product and includes product specifications, storage instructions, and recommended installation materials and equipment as applicable. Test Reports Submit test results and repo rts as required by Materials Manual, Vol 2 Section 2.4 FY 2023-24 Return to Table of Contents SECTION 933 PRESTRESSING STRAND AND BAR
933-1 Strands for Prestressing.
933-1.1 Carbon Steel Strands for Prestressing: The carbon -steel strands for
prestressing concrete members shall be Grade 270, low-relaxation seven wire strand conforming to the requirements of ASTM A416.
933-1.2 Stainless-Steel Strands for Prestressing: The stainless -steel strands for
prestressing concrete members shall be a high strength stainless-steel (HSSS , Grade 240), low-relaxation seven wire strand conforming to the requirements of ASTM A1114.
933-1.3 Carbon -Fiber-Reinforced Polymer (CFRP) Strands for Prestressing: Obtain
CFRP prestressing strands from producers currently on the Department’s Production Facility Listing. Producers seeking inclusion on the list shall meet the requirements of Section 105. CFRP strand shall meet the requirements of this Section. Table 933-1 Typical Sizes and Loads of CFRP Prestressing Strands and Bars Type Nominal Diameter (in) Nominal Cross Sectional Area (in2) Nominal Ultimate Load (Pu) (kips) Nominal Ultimate Tensile Stress (ksi) Single Strand - 5.0mm Ø 0.20 0.025 9.1 364 7-strand - 7.9mm Ø 0.31 0.048 17.8 370 7-strand - 10.8mm Ø 0.43 0.090 33.1 367 Single Strand (Bar) - 9.5mm Ø 0.38 0.110 35.0 318 7-strand - 12.5mm Ø 0.49 0.117 43.3 370 Single Strand (Bar) - 12.7mm Ø 0.50 0.196 59.0 301 7-strand - 15.2mm Ø 0.60 0.179 66.2 369 7-strand - 17.2mm Ø 0.68 0.234 86.6 370 7-strand - 19.3mm Ø 0.76 0.289 106.9 370
933-1.4 Shipping and Storage: Protect carbon -steel, stainless -steel, and CFRP strands
for prestressing against mechanical damage and contamination during shipping and storage .
933-2 Steel Bars for Prestressing.
The steel bars for prestressing concrete mem bers shall conform to the requirements of ASTM A722, Type II.
933-3 Steel Parallel Wire Assemblies for Prestressing.
The wire assemblies for prestressing concrete members shall consist of parallel wires of the number and size shown in the Plans and shall conform to the requirements of ASTM A421.
933-4 Anchorages for Prestressing.
933-4.1 For Strands and Bars:
FY 2023-24 Return to Table of Contents