1、Designation: C129 11Standard 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 number in pa
2、rentheses 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 Department of Defense.1. Scope*1.1 This specification covers hollow and solid nonloadbear-ing concre
3、te masonry units made from portland cement, water,and mineral aggregates with or without the inclusion of othermaterials. These units are intended for use in nonloadbearingpartitions, but under certain conditions they may be suitable foruse in nonloadbearing exterior walls above grade whereeffective
4、ly protected from the weather.1.2 The text of this standard references notes and footnoteswhich provide explanatory material. These notes and footnotes(excluding those in tables and figures) shall not be consideredas requirements of the standard.1.3 The values stated in inch-pound units are to be re
5、gardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.NOTE 1Concrete masonry units covered by this specification aremade from lightweight or normal weight aggregates, or both.NOTE 2When particu
6、lar features are desired, such as density classi-fication, surface texture for appearance or bond, finish, color, fireresistance, insulation, acoustical properties, or other special features, suchproperties should be specified separately by the purchaser. However,suppliers should be consulted as to
7、the availability of units having thedesired features.2. Referenced Documents2.1 ASTM Standards:2C33 Specification for Concrete AggregatesC140 Test Methods for Sampling and Testing ConcreteMasonry Units and Related UnitsC150 Specification for Portland CementC207 Specification for Hydrated Lime for Ma
8、sonry Pur-posesC331 Specification for Lightweight Aggregates for Con-crete Masonry UnitsC456 Test Method for Hydration Resistance of Basic Bricksand ShapesC595 Specification for Blended Hydraulic CementsC618 Specification for Coal Fly Ash and Raw or CalcinedNatural Pozzolan for Use in ConcreteC989 S
9、pecification for Slag Cement for Use in Concreteand MortarsC1157 Performance Specification for Hydraulic CementC1232 Terminology of Masonry3. Terminology3.1 Terminology defined in Terminology C1232 shall applyfor this specification.4. Classification4.1 Nonloadbearing concrete masonry units manufactu
10、redin accordance with this specification shall conform to one ofthree density classifications prescribed in Table 1.5. Materials and Manufacture5.1 Cementitious MaterialsMaterials shall conform to thefollowing applicable specifications:5.1.1 Portland CementSpecification C150.5.1.2 Blended Hydraulic
11、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 AggregatesAggregates shall conform to the followingASTM specifications, except that gra
12、ding requirements shallnot necessarily apply:5.2.1 Normal Weight AggregatesSpecification C33.5.2.2 Lightweight AggregatesSpecification C331.5.3 Other ConstituentsAir-entraining agents, coloringpigments, integral water repellents, finely ground silica, andother constituents, shall be previously estab
13、lished as suitable1This specification is under the jurisdiction of ASTM Committee C15 onManufactured Masonry Units and is the direct responsibility of SubcommitteeC15.03 on Concrete Masonry Units and Related Units.Current edition approved June 1, 2011. Published June 2011. Originallyapproved in 1937
14、. Last previous edition approved in 2006 as C129 06. DOI:10.1520/C0129-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe
15、ASTM website.1*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.for use in concrete masonry and shall conform to applicableASTM standards or shall be shown by test or exp
16、erience not tobe detrimental to the durability of the concrete masonry unitsor any material customarily used in masonry construction.6. Physical Requirements6.1 At the time of delivery to the purchaser, units shallconform to the strength requirements prescribed in Table 2.NOTE 3The purchaser is the
17、public body or authority, association,corporation, partnership, or individual entering into a contract or agree-ment to purchase or install, or both, concrete masonry units. The time ofdelivery to the purchaser is FOB plant when the purchaser or purchasersagent transports the concrete masonry units,
18、 or at the time unloaded at theworksite if the manufacturer or manufacturers agent transports theconcrete masonry units.6.2 At the time of delivery to the purchaser, the total lineardrying shrinkage of units shall not exceed 0.065%.6.3 Solid UnitsThe net cross-sectional area of solid units,in every
19、plane parallel to the bearing surface, shall be not lessthan 75 % of the gross cross-sectional area measured in thesame plane.7. Dimensions and Permissible Variations7.1 Minimum face shell thickness shall be not less than12in. (13 mm).7.2 No overall dimension (width, height, and length) shalldiffer
20、by more than 618 in. (3.2 mm) from the specifiedstandard dimensions.NOTE 4Standard dimensions of units are the manufacturers desig-nated dimensions. Nominal dimensions of modular size units are equal tothe standard dimensions plus the thickness of one mortar joint. Nominaldimensions of nonmodular si
21、ze units usually exceed the standard dimen-sions by18 to14 in. (3.2 to 6.4 mm).8. Finish and Appearance8.1 All units shall be sound and free of cracks or otherdefects that interfere with the proper placement of the units orsignificantly impair the strength or permanence of the construc-tion. Minor c
22、racks incidental to the usual method of manufac-ture or minor chipping resulting from customary methods ofhandling in shipment and delivery are not grounds for rejec-tion.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 orcrack
23、s, not otherwise permitted, or other imperfections whenviewed from a distance of not less than 20 ft (6.1 m) underdiffused lighting.8.2.1 Five percent of a shipment containing chips, not largerthan 1 in. (25.4 mm) in any dimension, or cracks not wider than0.02 in. (0.5 mm) and not longer than 25 % o
24、f the nominalheight of the unit is permitted.8.3 The color and texture of the units shall be specified bythe purchaser. The finished surfaces that will be exposed inplace shall conform to an approved sample consisting of notless than four units, representing the range of texture and colorpermitted.8
25、.4 Nonloadbearing concrete masonry units shall be clearlymarked in a manner to preclude their use as load bearing units.9. Methods of Sampling and Testing9.1 The purchaser or authorized representative shall beaccorded proper facilities to inspect and sample the units at theplace of manufacture from
26、the lots ready for delivery.9.2 Sample and test units in accordance with Test MethodsC140 and Test Method C456 when applicable.9.3 Total linear drying shrinkage shall be based on tests ofconcrete masonry units made with the same materials, concretemix design, manufacturing process, and curing method
27、, con-ducted in accordance with Test Method C456 not more than 24months prior to delivery.10. Compliance10.1 If a sample fails to conform to the specified require-ments, the manufacturer shall be permitted to remove unitsfrom the shipment. A new sample shall be selected by thepurchaser from remainin
28、g units from the shipment with asimilar configuration and dimension and tested at the expenseof the manufacturer. If the second sample meets the specifiedrequirements, the remaining portion of the shipment repre-sented by the sample meets the specified requirements. If thesecond sample fails to meet
29、 the specified requirements, theremaining portion of the shipment represented by the samplefails to meet the specified requirements.NOTE 5Unless otherwise specified in the purchase order, the cost oftests is typically borne as follows: if the results of the tests show that theunits do not conform to
30、 the requirements of this specification, the cost istypically borne by the seller. If the results of the tests show that the unitsconform to the specification requirements, the cost is typically borne bythe purchaser.11. Keywords11.1 concrete masonry units; face shell; flange; lineardrying shrinkage
31、; nonloadbearingTABLE 1 Density ClassificationARequirementsDensityClassificationOven-Dry Density of Concrete,lb/ft3(kg/m3) Average of 3 UnitsLightweight Less than 105 (1680)Medium Weight 105 to less than 125 (1680 to 2000)Normal Weight 125 (2000) or moreAConsult manufacturers for available densities
32、TABLE 2 Strength RequirementsCompressive Strength(average net area)min, psi (MPa)Average of 3 units 600 (4.14)Individual unit 500 (3.45)C129 112SUMMARY OF CHANGESCommittee C15 has identified the location of selected changes to this standard since the last issue (C129 06)that may impact the use of th
33、is standard. (Approved June 1, 2011.)(1) Section 11 was 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 suc
34、h patent rights, and the riskof 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 andif not revised, either reapproved or withdrawn. Your comments are invite
35、d either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a
36、fair hearing 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
37、standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).C129 113
