ASTM C825-19
(Specification)Standard Specification for Precast Concrete Barriers
Standard Specification for Precast Concrete Barriers
ABSTRACT
This specification covers precast concrete barriers intended for use adjacent to a roadway or as a median to redirect vehicles unintentionally leaving the roadway. The acceptance criteria for these barriers shall be based on strength properties, dimensional properties, and end results. Conformance as to materials (cement, aggregates, admixtures, and steel reinforcements), design (concrete strength, air entrainment, dimensions, steel reinforcements, concrete finish, lifting devices, anchorage, and reinforcement laps, welds, and splicing), and manufacture (mixture, accelerated curing, water curing, membrane curing, and forms) should be observed precisely. Physical requirements shall be examined by compression, curing compression, and core compression tests.
SCOPE
1.1 This specification covers precast concrete barriers, intended to be used adjacent to a roadway or as a median, to redirect vehicles unintentionally leaving the roadway.
1.2 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.
1.3 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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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: C825 −19
Standard Specification for
1
Precast Concrete Barriers
This standard is issued under the fixed designation C825; 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 C42/C42M Test Method for Obtaining and Testing Drilled
Cores and Sawed Beams of Concrete
1.1 This specification covers precast concrete barriers, in-
C150/C150M Specification for Portland Cement
tended to be used adjacent to a roadway or as a median, to
C173/C173M Test Method forAir Content of Freshly Mixed
redirect vehicles unintentionally leaving the roadway.
Concrete by the Volumetric Method
1.2 The values stated in inch-pound units are to be regarded
C231/C231M Test Method forAir Content of Freshly Mixed
as standard. The values given in parentheses are mathematical
Concrete by the Pressure Method
conversions to SI units that are provided for information only
C260/C260M Specification for Air-Entraining Admixtures
and are not considered standard.
for Concrete
1.3 This international standard was developed in accor- C330/C330M Specification for Lightweight Aggregates for
dance with internationally recognized principles on standard-
Structural Concrete
ization established in the Decision on Principles for the C494/C494M Specification for Chemical Admixtures for
Development of International Standards, Guides and Recom-
Concrete
mendations issued by the World Trade Organization Technical C595/C595M Specification for Blended Hydraulic Cements
Barriers to Trade (TBT) Committee.
C618 Specification for Coal Fly Ash and Raw or Calcined
Natural Pozzolan for Use in Concrete
2. Referenced Documents
3. Classification
2
2.1 ASTM Standards:
3.1 Precast concrete barriers manufactured in accordance
A416/A416M Specification for Low-Relaxation, Seven-
with this specification shall be as shown in either Fig. 1or Fig.
Wire Steel Strand for Prestressed Concrete
2.
A421/A421M Specification for Stress-Relieved Steel Wire
for Prestressed Concrete
4. Basis of Acceptance
A615/A615M Specification for Deformed and Plain Carbon-
4.1 Precast barrier shall comply with all of the provisions of
Steel Bars for Concrete Reinforcement
A996/A996M Specification for Rail-Steel and Axle-Steel this specification and shall be tested as prescribed in 8.3 and
8.4.
Deformed Bars for Concrete Reinforcement
A1064/A1064M Specification for Carbon-Steel Wire and 4.1.1 Acceptance as to Strength Properties—Concrete bar-
rier shall be acceptable under the strength tests when the
Welded Wire Reinforcement, Plain and Deformed, for
Concrete sections have met the requirements of Section 8.
C31/C31M Practice for Making and Curing Concrete Test 4.1.2 Acceptance as to Dimensional Properties—Concrete
Specimens in the Field barrier shall meet the dimensional tolerances of Section 9.
C33/C33M Specification for Concrete Aggregates 4.1.3 Acceptance as to End Result—The concrete barrier
C39/C39M Test Method for Compressive Strength of Cylin- sections shall be finally acceptable to the purchaser at the
drical Concrete Specimens designated point of delivery with no significant cracking.
Significant cracking is defined as fractures or cracks passing
through the section or any continuous structural crack extend-
1
This specification is under the jurisdiction ofASTM Committee C27 on Precast ing for a length of 12 in. (305 mm) or more, regardless of
Concrete Products and is the direct responsibility of Subcommittee C27.20 on
position in the section.
Architectural and Structural Products.
Current edition approved Dec. 1, 2019. Published December 2019. Originally
5. Materials
approvedin1979.Lastpreviouseditionapprovedin2011asC825 – 06(2011).DOI:
10.1520/C0825-19.
5.1 Cement—Portland cement shall conform to the require-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
ments of Specification C150/C150M or shall be portland
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
blast-furnace slag cement or portland-pozzolan cement con-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. forming to the requirements of Specification C595/C595M.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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C825 − 19
6.2 Concrete Strength—Concrete for barrier sections shall
have a design compressive strength of 4000 psi (28 MPa) in 28
days.
6.3 Air Entrainmen
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C825 − 06 (Reapproved 2011) C825 − 19
Standard Specification for
1
Precast Concrete Barriers
This standard is issued under the fixed designation C825; 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
1.1 This specification covers precast concrete barriers, intended to be used adjacent to a roadway or as a median, to redirect
vehicles unintentionally leaving the roadway.
1.2 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.
1.3 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.
2. Referenced Documents
2
2.1 ASTM Standards:
3
A82/A82M Specification for Steel Wire, Plain, for Concrete Reinforcement (Withdrawn 2013)
3
A185/A185M Specification for Steel Welded Wire Reinforcement, Plain, for Concrete (Withdrawn 2013)
A416/A416M Specification for Low-Relaxation, Seven-Wire Steel Strand for Prestressed Concrete
A421/A421M Specification for Stress-Relieved Steel Wire for Prestressed Concrete
3
A496/A496M Specification for Steel Wire, Deformed, for Concrete Reinforcement (Withdrawn 2013)
3
A497/A497M Specification for Steel Welded Wire Reinforcement, Deformed, for Concrete (Withdrawn 2013)
A615/A615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement
A996/A996M Specification for Rail-Steel and Axle-Steel Deformed Bars for Concrete Reinforcement
A1064/A1064M Specification for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete
C31/C31M Practice for Making and Curing Concrete Test Specimens in the Field
C33C33/C33M Specification for Concrete Aggregates
C39/C39M Test Method for Compressive Strength of Cylindrical Concrete Specimens
C42/C42M Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete
C150C150/C150M Specification for Portland Cement
C173/C173M Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method
C231C231/C231M Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method
C260C260/C260M Specification for Air-Entraining Admixtures for Concrete
C330C330/C330M Specification for Lightweight Aggregates for Structural Concrete
C494/C494M Specification for Chemical Admixtures for Concrete
C595C595/C595M Specification for Blended Hydraulic Cements
C618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
3. Classification
3.1 Precast concrete barriers manufactured in accordance with this specification shall be as shown in either Fig. 1or Fig. 2.
4. Basis of Acceptance
4.1 Precast barrier shall comply with all of the provisions of this specification and shall be tested as prescribed in 8.3 and 8.4.
1
This specification is under the jurisdiction of ASTM Committee C27 on Precast Concrete Products and is the direct responsibility of Subcommittee C27.20 on
Architectural and Structural Products.
Current edition approved May 1, 2011Dec. 1, 2019. Published June 2011December 2019. Originally approved in 1979. Last previous edition approved in 20062011 as
C825 – 06.C825 – 06(2011). DOI: 10.1520/C0825-06R11.10.1520/C0825-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C825 − 19
FIG. 1 New Jersey Barrier
FIG. 2 Type-F Barrier
4.1.1 Acceptance as to Strength Properties—Concrete barrier shall be acceptable under the strength tests when the sections have
met the requirements of Section 8.
4.1.2 Acceptance as to Dimensional Properties—Concrete barrier shall meet the dimensional tolerances of Section 9.
4.1.3 Acceptance as to End Result—The concrete barrier sections shall be finally acceptable to the
...
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