1、Designation: C129 11C129 14Standard Specification forNonloadbearing Concrete Masonry Units1This standard is issued under the fixed designation C129; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A numbe
2、r in parentheses indicates the year of last reapproval. Asuperscript 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 hollow and solid nonloadbea
3、ring concrete masonry units made from portland cement, water, andmineral aggregates with or without the inclusion of other materials. These units are intended for use in nonloadbearing partitions,but under certain conditions they may be suitable for use in nonloadbearing exterior walls above grade w
4、here effectively protectedfrom the weather.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 The values stated in inch-pound uni
5、ts are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.NOTE 1Concrete masonry units covered by this specification are made from lightweight or normal weight aggregates, or both.
6、NOTE 2When particular features are desired, such as density classification, surface texture for appearance or bond, finish, color, fire resistance,insulation, acoustical properties, or other special features, such properties should be specified separately by the purchaser. However, suppliers should
7、beconsulted as to the availability of units having the desired features.2. Referenced Documents2.1 ASTM Standards:2C33 Specification for Concrete AggregatesC140 Test Methods for Sampling and Testing Concrete Masonry Units and Related UnitsC150 Specification for Portland CementC207 Specification for
8、Hydrated Lime for Masonry PurposesC331 Specification for Lightweight Aggregates for Concrete Masonry UnitsC456 Test Method for Hydration Resistance of Basic Bricks and ShapesC595 Specification for Blended Hydraulic CementsC618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for U
9、se in ConcreteC989 Specification for Slag Cement for Use in Concrete and MortarsC1157 Performance Specification for Hydraulic CementC1232 Terminology of Masonry3. Terminology3.1 Terminology defined in Terminology C1232 shall apply for this specification.4. Classification4.1 Nonloadbearing concrete m
10、asonry units manufactured in accordance with this specification shall conform to one of threedensity classifications prescribed in Table 1.5. Materials and Manufacture5.1 Cementitious MaterialsMaterials shall conform to the following applicable specifications:5.1.1 Portland CementSpecification C150.
11、1 This specification is under the jurisdiction of ASTM Committee C15 on Manufactured Masonry Units and is the direct responsibility of Subcommittee C15.03 onConcrete Masonry Units and Related Units.Current edition approved June 1, 2011July 1, 2014. Published June 2011August 2014. Originally approved
12、 in 1937. Last previous edition approved in 20062011 as C129 06.11. DOI: 10.1520/C0129-11.10.1520/C0129-14.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standa
13、rds Document Summary page on the ASTM website.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. Becauseit may not be technically possible to adequately depict all changes accurately
14、, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive
15、, PO Box C700, West Conshohocken, PA 19428-2959. United States15.1.2 Blended Hydraulic CementsSpecification C595.5.1.3 Hydraulic CementSpecification C1157.5.1.4 Hydrated Lime, Type SSpecification C207.5.1.5 Ground Granulated Blast Furnace SlagSpecification C989.5.1.6 PozzolansSpecification C618.5.2
16、AggregatesAggregates shall conform to the following ASTM specifications, except that grading requirements shall notnecessarily apply:5.2.1 Normal Weight AggregatesSpecification C33.5.2.2 Lightweight AggregatesSpecification C331.5.3 Other ConstituentsAir-entraining agents, coloring pigments, integral
17、 water repellents, finely ground silica, and otherconstituents, shall be previously established as suitable for use in concrete masonry and shall conform to applicable ASTMstandards or shall be shown by test or experience not to be detrimental to the durability of the concrete masonry units or anyma
18、terial customarily used in masonry construction.6. Physical Requirements6.1 At the time of delivery to the purchaser, units shall conform to the strength requirements prescribed in Table 2. All unitsshall be sound and free of cracks or other defects that interfere with the proper placement of the un
19、its or significantly impair thestrength or permanence of the construction. Minor cracks incidental to the usual method of manufacture or minor chippingresulting from customary methods of handling in shipment and delivery are not grounds for rejection.NOTE 3The purchaser is the public body or authori
20、ty, association, corporation, partnership, or individual entering into a contract or agreement topurchase or install, or both, concrete masonry units. The time of delivery to the purchaser is FOB plant when the purchaser or purchasers agent transportsthe concrete masonry units, or at the time unload
21、ed at the worksite if the manufacturer or manufacturers agent transports the concrete masonry units.6.2 At the time of delivery to the purchaser, the total linear drying shrinkage of units shall not exceed 0.065%.6.3 Solid UnitsThe net cross-sectional area of solid units, in every plane parallel to
22、the bearing surface, shall be not less than75 % of the gross cross-sectional area measured in the same plane.7. Dimensions and Permissible Variations7.1 Minimum face shell thickness shall be not less than 12 in. (13 mm).7.2 No overall dimension (width, height, and length) shall differ by more than 6
23、18 in. (3.2 mm) from the specified standarddimensions.NOTE 4Standard dimensions of units are the manufacturers designated dimensions. Nominal dimensions of modular size units are equal to theTABLE 1 Density ClassificationA RequirementsDensityClassificationOven-Dry Density of Concrete,lb/ft3 (kg m3)
24、Average of 3 UnitsLightweight Less than 105 (1680)Medium Weight 105 to less than 125 (1680 to 2000)Normal Weight 125 (2000) or moreTABLE 1 Density ClassificationA RequirementsDensityClassificationOven-Dry Density of Concrete,lb/ft 3 (kg m3) Average of 3 UnitsLightweight Less than 105 (1680)Medium We
25、ight 105 to less than 125 (1680 to 2000)Normal Weight 125 (2000) or moreA Consult manufacturers for available densitiesTABLE 2 Strength RequirementsCompressive Strength(average net area)min, psi (MPa)Average of 3 units 600 (4.14)Individual unit 500 (3.45)TABLE 2 Strength RequirementsCompressive Stre
26、ngth(average net area)min, psi (MPa)Average of 3 units 600 (4.14)Individual unit 500 (3.45)C129 142standard dimensions plus the thickness of one mortar joint. Nominal dimensions of nonmodular size units usually exceed the standard dimensions by 18to 14 in. (3.2 to 6.4 mm).8. Finish and Appearance8.1
27、 All units shall be sound and free of cracks or other defects that interfere with the proper placement of the units orsignificantly impair the strength or permanence of the construction. Minor cracks incidental to the usual method of manufactureor minor chipping resulting from customary methods of h
28、andling in shipmentNo more than 5 % of the units in the shipment shallexhibit one or more of the characteristics described in 8.1.1 through 8.1.4 and 8.2delivery are not grounds for rejection. .8.1.1 Units with dimensions not meeting the requirements of 7.2.8.1.2 Units with finished face(s) containi
29、ng chips larger than 1 in. (25.4 mm) in any direction.8.1.3 Units with finished face(s) containing cracks wider than 0.02 in. (0.5 mm) and longer than 25 % of the nominal heightof the unit.8.1.4 Units that are broken.NOTE 5Units specified to have particular features or finishes, such as split-face a
30、nd tumbled units, should not be evaluated for conformance of suchfeatures to the requirements of 8.1.2.8.2 Where units are to be used in exposed wall construction, the face or faces that are to be exposed shall not show chips orcracks, not otherwise permitted, except as permitted in 8.1.2 and 8.1.3,
31、 or other imperfections when viewed from a distance of notless than 20 ft (6.1 m) under diffused lighting.8.2.1 Five percent of a shipment containing chips, not larger than 1 in. (25.4 mm) in any dimension, or cracks not wider than0.02 in. (0.5 mm) and not longer than 25 % of the nominal height of t
32、he unit is permitted.8.3 The color and texture of the units shall be specified by the purchaser. The finished surfaces that will be exposed in placeshall conform to an approved sample consisting of not less than four units, representing the range of texture and color permitted.NOTE 6Concrete masonry
33、 units are produced using a wide variety of natural aggregates and other materials. As such, slight variations inherent fromnatural materials should be expected. Since specifying units and approving samples can take place several months prior to production of actual units fora project, slight variat
34、ions in appearance from the approved sample are to be expected.8.4 Nonloadbearing concrete masonry units shall be clearly marked in a manner to preclude their use as load bearing units.9. Methods of Sampling and Testing9.1 The purchaser or authorized representative shall be accorded proper facilitie
35、s to inspect and sample the units at the placeof manufacture from the lots ready for delivery.9.2 Sample and test units in accordance with Test Methods C140 and Test Method C456 when applicable.9.3 Total linear drying shrinkage shall be based on tests of concrete masonry units made with the same mat
36、erials, concrete mixdesign, manufacturing process, and curing method, conducted in accordance withTest Method C456 not more than 24 months priorto delivery.10. Compliance10.1 If a sample fails to conform to the specified requirements, the manufacturer shall be permitted to remove units from theshipm
37、ent. A new sample shall be selected by the purchaser from remaining units from the shipment with a similar configurationand dimension and tested at the expense of the manufacturer. If the second sample meets the specified requirements, the remainingportion of the shipment represented by the sample m
38、eets the specified requirements. If the second sample fails to meet the specifiedrequirements, the remaining portion of the shipment represented by the sample fails to meet the specified requirements.NOTE 7Unless otherwise specified in the purchase order, the cost of tests is typically borne as foll
39、ows: if the results of the tests show that the unitsdo not conform to the requirements of this specification, the cost is typically borne by the seller. If the results of the tests show that the units conformto the specification requirements, the cost is typically borne by the purchaser.11. Keywords
40、11.1 concrete masonry units; face shell; flange; linear drying shrinkage; nonloadbearingC129 143SUMMARY OF CHANGESCommittee C15 has identified the location of selected changes to this standard since the last issue(C129 06C129 11) that may impact the use of this standard. (Approved JuneJuly 1, 2011.)
41、2014.)(1) Subsection 6.1 and Section 118 waswere revised.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such paten
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44、ring you shouldmake 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
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