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ASTM C825-06

(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 the standard. The values given in parentheses are for information only.

General Information

Status
Historical
Publication Date
31-Dec-2005
ICS
91.100.30 - Concrete and concrete products
Technical Committee
C27 - Precast Concrete Products
Drafting Committee
C27.20 - Architectural and Structural Products
Current Stage
Ref Project

Relations

Replaces
ASTM C825-97 - Standard Specification for Precast Concrete Barriers
Effective Date
01-Jan-2006
Replaced By
ASTM C825-06(2011) - Standard Specification for Precast Concrete Barriers
Effective Date
01-May-2011

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ASTM C825-06 - Standard Specification for Precast Concrete BarriersASTM C825-06 - Standard Specification for Precast Concrete Barriers
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ASTM C825-06 - Standard Specification for Precast Concrete Barriers
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C825 – 06
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 Specification for Portland Cement
tended to be used adjacent to a roadway or as a median, to
C173/C173M Test Method for Air Content of Freshly
redirect vehicles unintentionally leaving the roadway.
Mixed Concrete by the Volumetric Method
1.2 The values stated in inch-pound units are to be regarded
C231 Test Method for Air Content of Freshly Mixed Con-
as the standard. The values given in parentheses are for
crete by the Pressure Method
information only.
C260 Specification for Air-Entraining Admixtures for Con-
2. Referenced Documents
crete
2
C330 Specification for Lightweight Aggregates for Struc-
2.1 ASTM Standards:
tural Concrete
A82/A82M Specification for SteelWire, Plain, for Concrete
C494/C494M Specification for Chemical Admixtures for
Reinforcement
Concrete
A185/A185M Specification for Steel Welded Wire Rein-
C595 Specification for Blended Hydraulic Cements
forcement, Plain, for Concrete
C618 Specification for Coal Fly Ash and Raw or Calcined
A416/A416M Specification for Steel Strand, Uncoated
Natural Pozzolan for Use in Concrete
Seven-Wire for Prestressed Concrete
A421/A421M Specification for Uncoated Stress-Relieved
3. Classification
Steel Wire for Prestressed Concrete
3.1 Precast concrete barriers manufactured in accordance
A496/A496M Specification for Steel Wire, Deformed, for
with this specification shall be as shown in either Fig. 1or Fig.
Concrete Reinforcement
2.
A497/A497M Specification for Steel Welded Wire Rein-
forcement, Deformed, for Concrete
4. Basis of Acceptance
A615/A615M Specification for Deformed and Plain
4.1 Precast barrier shall comply with all of the provisions of
Carbon-Steel Bars for Concrete Reinforcement
this specification and shall be tested as prescribed in 8.3 and
A616/A616M Specification for Rail-Steel Deformed and
3 8.4.
Plain Bars for Concrete Reinforcement
4.1.1 Acceptance as to Strength Properties—Concrete bar-
A617/A617M Specification for Axle-Steel Deformed and
3 rier shall be acceptable under the strength tests when the
Plain Bars for Concrete Reinforcement
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 Specification for Concrete Aggregates
4.1.3 Acceptance as to End Result—The concrete barrier
C39/C39M Test Method for Compressive Strength of Cy-
sections shall be finally acceptable to the purchaser at the
lindrical Concrete Specimens
designated point of delivery with no significant cracking.
Significant cracking is defined as fractures or cracks passing
1
through the section or any continuous structural crack extend-
This specification is under the jurisdiction ofASTM Committee C27 on Precast
Concrete Products and is the direct responsibility of Subcommittee C27.20 on
ing for a length of 12 in. (305 mm) or more, regardless of
Architectural and Structural Products.
position in the section.
Current edition approved Jan. 1, 2006. Published January 2006. Originally
approved in 1979. Last previous edition approved in 1997 as C825 – 97. DOI:
5. Materials
10.1520/C0825-06.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1 Cement—Portland cement shall conform to the require-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ments of Specification C150 or shall be portland blast-furnace
Standards volume information, refer to the standard’s Document Summary page on
slag cement or portland-pozzolan cement conforming to the
the ASTM website.
3
Withdrawn. requirements of Specification C595.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
C825 – 06
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 Entrainment—Unless otherwise specified by the
1
purchaser, all concrete shall have an air content of 5 ⁄2 61%
as measured by Test Methods C173/C173M or C231.
6.4 Dimensions—Cross-sectional dimensions of the barrier
shall be as shown in Fig. 1. Unless otherwise specified by the
purchaser, the length of each
...

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