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ASTM D8507-23

(Specification)

Standard Specification for High Load Multi-Rotational Disc Bearings for Bridges and Structures

Standard Specification for High Load Multi-Rotational Disc Bearings for Bridges and Structures

SCOPE
1.1 This specification covers bridge bearings that consist of an unconfined polyether urethane rotational element subjected to compression loads, along with a resisting mechanism to transmit shear and/or tension loads through the bearing. For expansion and/or contraction applications, an additional stainless steel flat surface slides against a carbon steel plate faced with sheet polytetrafluoroethylene (PTFE). The function of the bearing is to transfer loads and to accommodate any relative movement, including rotation between a bridge superstructure and its supporting structure, or both.  
1.2 The requirements stated in this specification are the minimums necessary for the manufacture of quality bearing devices. It may be necessary to increase these minimum values due to other design or construction conditions.  
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
30-Apr-2023
ICS
93.040 - Bridge construction
Technical Committee
D04 - Road and Paving Materials
Drafting Committee
D04.32 - Bridges and Structures
Current Stage
Ref Project

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ASTM D8507-23 - Standard Specification for High Load Multi-Rotational Disc Bearings for Bridges and StructuresASTM D8507-23 - Standard Specification for High Load Multi-Rotational Disc Bearings for Bridges and Structures
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ASTM D8507-23 - Standard Specification for High Load Multi-Rotational Disc Bearings for Bridges and Structures
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D8507 − 23
Standard Specification for
High Load Multi-Rotational Disc Bearings for Bridges and
1
Structures
This standard is issued under the fixed designation D8507; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope A240/A240M Specification for Chromium and Chromium-
Nickel Stainless Steel Plate, Sheet, and Strip for Pressure
1.1 This specification covers bridge bearings that consist of
Vessels and for General Applications
an unconfined polyether urethane rotational element subjected
A572/A572M Specification for High-Strength Low-Alloy
to compression loads, along with a resisting mechanism to
Columbium-Vanadium Structural Steel
transmit shear and/or tension loads through the bearing. For
A588/A588M Specification for High-Strength Low-Alloy
expansion and/or contraction applications, an additional stain-
Structural Steel, up to 50 ksi [345 MPa] Minimum Yield
less steel flat surface slides against a carbon steel plate faced
Point, with Atmospheric Corrosion Resistance
with sheet polytetrafluoroethylene (PTFE). The function of the
A709/A709M Specification for Structural Steel for Bridges
bearing is to transfer loads and to accommodate any relative
D395 Test Methods for Rubber Property—Compression Set
movement, including rotation between a bridge superstructure
D412 Test Methods for Vulcanized Rubber and Thermoplas-
and its supporting structure, or both.
tic Elastomers—Tension
1.2 The requirements stated in this specification are the
D638 Test Method for Tensile Properties of Plastics
minimums necessary for the manufacture of quality bearing
D792 Test Methods for Density and Specific Gravity (Rela-
devices. It may be necessary to increase these minimum values
tive Density) of Plastics by Displacement
due to other design or construction conditions.
D2240 Test Method for Rubber Property—Durometer Hard-
1.3 The values stated in inch-pound units are to be regarded ness
D4894 Specification for Polytetrafluoroethylene (PTFE)
as the standard. The values given in parentheses are for
information only. Granular Molding and Ram Extrusion Materials
D4895 Specification for Polytetrafluoroethylene (PTFE)
1.4 This standard does not purport to address all of the
Resin Produced From Dispersion
safety concerns, if any, associated with its use. It is the
3
2.2 AASHTO Standards:
responsibility of the user of this standard to establish appro-
AASHTO Standard Specifications for Highway Bridges
priate safety, health, and environmental practices and deter-
AASHTO LRFD Bridge Design Specifications
mine the applicability of regulatory limitations prior to use.
AASHTO LRFD Bridge Construction Specifications
1.5 This international standard was developed in accor-
4
dance with internationally recognized principles on standard-
2.3 AWS Standards:
ization established in the Decision on Principles for the
C2.23 Specification for the Application of Thermal Spray
Development of International Standards, Guides and Recom-
Coatings (Metallizing) of Aluminum, Zinc, and Their
mendations issued by the World Trade Organization Technical Alloys and Composites for the Corrosion Protection of
Barriers to Trade (TBT) Committee.
Steel
D1.5 AASHTO/AWS Bridge Welding Code
2. Referenced Documents
D1.6 AWS Structural Welding Code—Stainless Steel
2
5
2.1 ASTM Standards:
2.4 AREMA Standards:
A36/A36M Specification for Carbon Structural Steel
AREMA Manual for Railway Engineering
1
This specification is under the jurisdiction of ASTM Committee D04 on Road
3
and Paving Materials and is the direct responsibility of Subcommittee D04.32 on Available from American Association of State Highway and Transportation
Bridges and Structures. Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001,
Current edition approved May 1, 2023. Published May 2023. DOI: 10.1520/ http://www.transportation.org.
4
D8507-23. Available from American Welding Society (AWS), 8669 NW 36 St., #130,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Miami, FL 33166-6672, http://www.aws.org.
5
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from American Railway Engineering and Maintenance-of-Way
Standards volume information, refer to the standard’s Document Summary page on Association (AREMA), 4501 Forbes Blvd., Suite 130, Lanham, MD 20706,
the ASTM website. https://www.arema.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Cons
...

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2.1 This practice may be used in conjunction with other methods in determining the general condition of concrete bridge decks.  
2.2 This practice may be used in determining specific areas of delamination requiring repair.
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Note 1: The influence of variable field conditions such as traffic noise, vibration, moisture content of the concrete, and the like, are not completely known and additional investigation may be needed. It is generally agreed that the practice should not be used on frozen concrete.  
1.2 The following three procedures are covered in this practice:  
1.2.1 Procedure A, Electro-Mechanical Sounding Device—This procedure uses an electric-powered tapping device, sonic receiver, and recorder mounted on a cart. The cart is pushed across the bridge deck and the delamination is recorded on the recorder.  
1.2.2 Procedure B, Chain Drag—This procedure consists of dragging a chain over the bridge deck surface. The detection of delamination is accomplished by the operator noting dull or hollow sounds. Tapping the bridge deck surface with a steel rod or hammer may be substituted for the chain drag.  
1.2.3 Procedure C, Rotary Percussion2—This procedure consists of rolling a dual-wheel, multi-toothed apparatus attached to an extension pole over the bridge deck surface. The percussive force caused by the tapping wheels will create either a dull or hollow sound, indicating any delamination.  
1.3 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.5 Since a complete Precision and Bias statement for this standard has not been developed, the standard practice is to be used for research and informational purposes only. Therefore, this standard should not be used for acceptance or rejection of a material for purchasing purposes.  
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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SCOPE
1.1 This specification covers bridge bearings that consist of a spherical rotational element, where a stainless steel convex surface slides against a concave carbon steel plate covered with woven or sheet polytetrafluoroethylene (PTFE). The function of the bearing is to transfer loads and to accommodate any relative movement, including rotation between a bridge superstructure and its supporting structure, or both.  
1.2 This specification covers the requirements of spherical bearings with a standard horizontal load (a maximum of 10 % of vertical).  
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1.5 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.6 The following safety hazards caveat pertains only to the test method portion, Section 7, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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4.1 This practice provides a guide for factors to be considered prior to waterproofing bridge decks with water barrier membrane systems. It will provide guidance for specification of materials, application of membrane systems, and placement of asphalt wearing courses. It may be used as a guide for new construction or for rehabilitation of existing structures.
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1.1 This practice covers liquid applied, preformed, or built-up water barrier membrane systems and their application, overlaid with asphalt wearing courses, for use in the protection of bridge decks from deleterious effects of deicing salts. Material use and specifications should be adapted to conform to job and user requirements for new construction or existing structures. This practice is written as a guide for the use of bridge deck water barrier systems only.  
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ASTM D4788-03(2022)(Test Method)
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SIGNIFICANCE AND USE
4.1 This test method may be used in conjunction with other test methods in determining the general condition of a bridge deck.  
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1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
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SIGNIFICANCE AND USE
2.1 This practice may be used in conjunction with other methods in determining the general condition of concrete bridge decks.  
2.2 This practice may be used in determining specific areas of delamination requiring repair.
SCOPE
1.1 This practice covers procedures for surveying concrete bridge decks by sounding to determine delamination in the concrete. It is not intended that the procedures described herein are to be used on bridge decks that have been overlaid with asphalt mixtures. The procedures may be used on bridge decks that have been overlaid with portland cement concrete mixtures; however, areas indicated to be delaminated may have a lack of bond between the overlay and the underlying bridge deck (Note 1).  
Note 1: The influence of variable field conditions such as traffic noise, vibration, moisture content of the concrete, and the like, are not completely known and additional investigation may be needed. It is generally agreed that the practice should not be used on frozen concrete.  
1.2 The following three procedures are covered in this practice:  
1.2.1 Procedure A, Electro-Mechanical Sounding Device—This procedure uses an electric-powered tapping device, sonic receiver, and recorder mounted on a cart. The cart is pushed across the bridge deck and the delamination is recorded on the recorder.  
1.2.2 Procedure B, Chain Drag—This procedure consists of dragging a chain over the bridge deck surface. The detection of delamination is accomplished by the operator noting dull or hollow sounds. Tapping the bridge deck surface with a steel rod or hammer may be substituted for the chain drag.  
1.2.3 Procedure C, Rotary Percussion2—This procedure consists of rolling a dual-wheel, multi-toothed apparatus attached to an extension pole over the bridge deck surface. The percussive force caused by the tapping wheels will create either a dull or hollow sound, indicating any delamination.  
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1.4 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.5 Since a complete Precision and Bias statement for this standard has not been developed, the standard practice is to be used for research and informational purposes only. Therefore, this standard should not be used for acceptance or rejection of a material for purchasing purposes.  
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ABSTRACT
This specification covers bridge bearings that consist of a spherical rotational element, where a stainless steel convex surface slides against a concave carbon steel plate covered with woven or sheet polytetrafluoroethylene (PTFE). The function of the bearing is to transfer loads and to accommodate any relative movement, including rotation between a bridge superstructure and its supporting structure, or both. The requirements of spherical bearings with a standard horizontal load (a maximum of 10 % of vertical) are discussed. The bearings are furnished in three types: fixed spherical bearing which is for rotation only, unidirectional sliding spherical bearing which is for rotation plus movement in one direction, and multi-directional sliding spherical bearing which is for rotation plus movement in all directions. The materials to be used in producing the bearings include: steel, stainless steel (flat sliding surface and convex surface), woven fabric polytetrafluoroethylene, and sheet polytetrafluoroethylene. The following different test methods shall be performed: proof load and rotation tests for fixed and expansion bearings, coefficient of friction test for expansion bearings only, PTFE (woven or sheet) bond test for expansion bearings only, and physical property test of both PTFEs for fixed and expansion bearings.
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1.2 This specification covers the requirements of spherical bearings with a standard horizontal load (a maximum of 10 % of vertical).  
1.3 The requirements stated in this specification are the minima necessary for the manufacture of quality bearing devices. It may be necessary to increase these minimum values due to other design conditions.  
1.4 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.5 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.6 The following safety hazards caveat pertains only to the test method portion, Section 7, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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SIGNIFICANCE AND USE
4.1 This practice provides a guide for factors to be considered prior to waterproofing bridge decks with water barrier membrane systems. It will provide guidance for specification of materials, application of membrane systems, and placement of asphalt wearing courses. It may be used as a guide for new construction or for rehabilitation of existing structures.
SCOPE
1.1 This practice covers liquid applied, preformed, or built-up water barrier membrane systems and their application, overlaid with asphalt wearing courses, for use in the protection of bridge decks from deleterious effects of deicing salts. Material use and specifications should be adapted to conform to job and user requirements for new construction or existing structures. This practice is written as a guide for the use of bridge deck water barrier systems only.  
1.2 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 10.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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Standard Test Method for Detecting Delaminations in Bridge Decks Using Infrared Thermography

SIGNIFICANCE AND USE
4.1 This test method may be used in conjunction with other test methods in determining the general condition of a bridge deck.  
4.2 Areas indicated as delaminated on overlaid bridge decks may be an indication of lack of bond between the overlay and the underlying bridge deck. This test method may be used in determining specific areas of delaminations requiring repair.
SCOPE
1.1 This test method covers the determination of delaminations in portland-cement concrete bridge decks using infrared thermography. This test method is intended for use on exposed and overlaid concrete bridge decks.  
1.2 A Precision and Bias statement has not been developed at this time. Therefore, this standard should not be used for acceptance or rejection of a material for purchasing purposes.
Note 1: This test method can be used on asphalt or concrete overlays as thick as 4 in. (100 mm).  
1.3 This test method uses an imaging infrared scanner and video recorder, mounted on a vehicle, to detect delaminations and debonded areas on bridge decks and to record the information.  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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Standard Specification for Asphaltic Plug Joints for Bridges

ABSTRACT
This specification covers the standards the material, testing and application requirements for a field molded asphaltic plug joint (APJ) used in expansion joint sealing on asphalt concrete overlay and portland cement concrete decks. This specification is limited only to field molded APJ which can consist of multilayer, or single layer, or both, application systems. The asphaltic binder to be used shall be a thermoplastic polymeric-modified asphalt. The aggregates shall be crushed, washed, and dried. Physical properties of the asphalt such as softening point, tensile adhesion, ductility, resilience, and flexibility shall also be tested and shall conform to other ASTM documents prescribed herein.
SCOPE
1.1 This specification covers the material, testing, and application requirements for a field-molded asphaltic plug joint (APJ) used in expansion joint sealing on asphalt concrete overlay and portland cement concrete decks. The scope of this specification is limited to field-molded APJ. This molded element can consist of multilayer or single layer, or both, application systems depending upon individual manufacturing requirements. The details of this specification are limited to the materials used in the application of APJ. It is recommended that a practical means of testing the watertightness aspects of the individual systems, either in the field or at the testing laboratory, be developed. When used on highway bridges, limits on maximum joint movements shall be specifically identified for each type of APJ. APJs should not be used for movement applications exceeding ±25 mm from the installation width.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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