ASTM C139 - 23

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Carl 2024-09-02 12 209.89KB 3 页 12星币
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Designation: C139 −23
Standard Specification for
Concrete Masonry Units for Construction of Catch Basins
and Manholes
1
This standard is issued under the fixed designation C139; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This specification covers solid precast segmental con-
crete masonry units made from hydraulic cement, water, and
suitable mineral aggregates, with or without the inclusion of
other materials. The units are intended for use in the construc-
tion of catch basins and manholes.
1.2 The text of this standard referenced notes and footnotes
that provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered
as requirements of the standard.
1.3 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 This international standard was developed in accor-
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
2
C33/C33M Specification for Concrete Aggregates
C140/C140M Test Methods for Sampling and Testing Con-
crete Masonry Units and Related Units
C150/C150M Specification for Portland Cement
C207 Specification for Hydrated Lime for Masonry Pur-
poses
C595/C595M Specification for Blended Hydraulic Cements
C618 Specification for Coal Ash and Raw or Calcined
Natural Pozzolan for Use in Concrete
C979/C979M Specification for Pigments for Integrally Col-
ored Concrete
C989/C989M Specification for Slag Cement for Use in
Concrete and Mortars
C1157/C1157M Performance Specification for Hydraulic
Cement
C1232 Terminology for Masonry
C1240 Specification for Silica Fume Used in Cementitious
Mixtures
3. Terminology
3.1 Terminology defined in Terminology C1232 shall apply
for this specification.
4. Materials
4.1 Cementitious Materials—Cementitious materials shall
conform to the following applicable specifications:
4.1.1 Portland Cement—Specification C150/C150M.
4.1.2 Modified Portland Cement—Portland cement con-
forming to Specification C150/C150M, modified as follows:
(1) Limestone—If calcium carbonate is added to the
cement, the CaCO
3
content shall not be less than 85%.
(2) Limitation on Insoluble Residue—1.5 %.
(3) Limitation on Air Content of Mortar—Volume percent,
22 % max.
(4) Limitation on Loss on Ignition—7 %.
4.1.3 Blended Hydraulic Cements—Specification C595/
C595M.
4.1.4 Hydraulic Cement—Specification C1157/C1157M.
4.1.5 Pozzolans—Specification C618.
4.1.6 Slag Cement—Specification C989/C989M.
4.1.7 Silica Fume—Specification C1240.
4.2 Aggregates—Aggregates shall conform to Specification
C33/C33M, except for grading requirements.
NOTE 1—The grading requirements of Specifications C33/C33M may
not be suitable for concrete masonry production. Because of this,
producers are allowed to modify grading to meet their needs and the
requirements of this specification.
1
This specification is under the jurisdiction of ASTM Committee C15 on
Manufactured Masonry Units and is the direct responsibility of Subcommittee
C15.03 on Concrete Masonry Units and Related Units.
Current edition approved Dec. 1, 2023. Published December 2023. Originally
approved in 1938. Last previous edition approved in 2022 as C139 –22. DOI:
10.1520/C0139-23.
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.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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.
1
4.3 Pigments for Integrally Colored Concrete—
Specification C979/C979M.
4.4 Other Constituents—Air-entraining agents, integral wa-
ter repellents, and other constituents shall be previously estab-
lished as suitable for use in concrete masonry units and shall
conform to applicable ASTM standards or shall be shown by
test or experience not to be detrimental to the durability of the
concrete masonry units or any material customarily used in
masonry construction.
5. Physical Requirements
5.1 At the time of delivery to the purchaser, the units shall
conform to the requirements prescribed in Table 1. Units shall
be free of defects that significantly impair the strength or
permanence of the construction.
6. Dimensions and Permissible Variations
6.1 The thickness of any unit shall be not less than 5 in. (127
mm).
6.2 Overall dimensions shall not vary by more than 63 %
from the specified dimensions.
7. Sampling and Testing
7.1 The purchaser or his authorized representative shall be
accorded proper facilities to inspect and sample the units at the
place of manufacture from the lots ready for delivery.
7.2 Compressive strength, absorption, density, and dimen-
sional tolerances shall be based on tests of concrete masonry
units of any configuration or dimensions made with the same
materials, concrete mix design, manufacturing process, and
curing method, conducted in accordance with Test Methods
C140/C140M and not more than 12 months prior to delivery.
7.3 Except as specified in Section 5, and unless otherwise
agreed, the expense of inspection and testing shall be borne by
the purchaser.
8. Compliance
8.1 Minor cracks, incidental to the usual method of manu-
facture or minor chipping resulting from customary methods of
handling in shipment and delivery, are not grounds for rejec-
tion.
8.2 Non-conforming Units—No more than 5 % of the units
in the shipment shall exhibit any of the characteristics de-
scribed in 8.2.1 through 8.2.3.
8.2.1 Units that do not comply with the requirements of
Section 6.
8.2.2 Units with cracks or other defects that interfere with
the proper placement of the unit.
8.2.3 Units that are broken.
8.3 After units are placed in usage, the manufacturer or
manufacturer’s agent are not responsible for non-conforming
units defined in 8.2.
8.4 If a sample fails to conform to the specified
requirements, the manufacturer shall be permitted to remove
units from the shipment. A new sample shall be selected by the
purchaser from remaining units from the shipment with a
similar configuration and dimension and tested at the expense
of the manufacturer. If the second sample meets the specified
requirements, the remaining portion of the shipment repre-
sented by the sample meets the specified requirements. If the
second sample fails to meet the specified requirements, the
remaining portion of the shipment represented by the sample
fails to meet the specified requirements.
NOTE 2—Unless otherwise specified in the purchase order, the cost of
tests is typically borne as follows: (1) if the results of the tests show that
the units do not conform to the requirements of this specification, the cost
is typically borne by the seller; (2) if the results of the tests show that the
units conform to the specification requirements, the cost is typically borne
by the purchaser.
9. Keywords
9.1 catch basins; concrete masonry units; manholes; ma-
sonry units
SUMMARY OF CHANGES
Committee C15 has identified the location of selected changes to this standard since the last issue (C139 – 22)
that may impact the use of this standard. (December 1, 2023)
(1) Modified 4.1 and 4.1.6 to improve clarity.
Committee C15 has identified the location of selected changes to this standard since the last issue (C139 – 17)
that may impact the use of this standard. (December 15, 2022)
(1) Modified Section 4to add reference to C1240 and C979,
clarify that grading requirements do not apply for aggregates,
add modified portland cements, and clean up language on other
constituents.
(2) Changes were made throughout to consolidate require-
ments for compliance into Section 8.
TABLE 1 Strength and Absorption Requirements
Compressive Strength,
min, lb/in
2
(MPa)
(Average Gross Area)
Water Absorption,
max, lb/ft
3
(kg/m
3
)
Average of
3 Units
Individual
Units
Average of
3 Units
Individual
Units
2500 (17) 2000 (13) 10 (160) 12 (192)
C139 − 23
2
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned
in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk
of infringement of such rights, are entirely their own responsibility.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and
if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards
and should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the
responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should
make your views known to the ASTM Committee on Standards, at the address shown below.
This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,
United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above
address or at 610-832-9585 (phone), 610-832-9555 (fax), or service@astm.org (e-mail); or through the ASTM website
(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222
Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http://www.copyright.com/
C139 − 23
3
摘要:

ASTM C139-23标准规范涵盖了使用非标准轻骨料制备的泡沫混凝土(也称泡沫砂浆)的典型性能要求、取样与测试方法。该标准适用于密度等级在480至1920 kg/m³(30至120 lb/ft³)之间的结构或隔离用泡沫混凝土,并特别规定了抗压强度、干燥收缩、吸水率及热导率等关键指标的限值。它为工程设计与质量控制提供了统一的依据,确保材料在填料、隔热、回填或结构轻质层中的可靠性与耐久性。本版标准对原C139-20进行了技术修订,更新了部分测试引用与数值容差,以适应当前行业实践。

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作者:Carl 分类:国外协会 价格:12星币 属性:3 页 大小:209.89KB 格式:PDF 时间:2024-09-02

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