ASTM C32-2011 Standard Specification for Sewer and Manhole Brick (Made From Clay or Shale)《污水管和人孔用砖(粘土或页岩制)的标准规格》.pdf
《ASTM C32-2011 Standard Specification for Sewer and Manhole Brick (Made From Clay or Shale)《污水管和人孔用砖(粘土或页岩制)的标准规格》.pdf》由会员分享,可在线阅读,更多相关《ASTM C32-2011 Standard Specification for Sewer and Manhole Brick (Made From Clay or Shale)《污水管和人孔用砖(粘土或页岩制)的标准规格》.pdf(2页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: C32 11American Association StateHighway and Transportation Officials StandardAASHTO No.: M91-78Standard Specification forSewer and Manhole Brick (Made From Clay or Shale)1This standard is issued under the fixed designation C32; the number immediately following the designation indicates
2、the year of originaladoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the D
3、epartment of Defense.1. Scope*1.1 This specification covers brick intended for use in (1)drainage structures for the conveyance of sewage, industrialwastes, and storm water, and (2) related structures such asmanholes and catch basins.1.2 The property requirements of this standard apply at thetime of
4、 purchase. The use of results from testing of brickextracted from masonry structures for determining confor-mance or non-conformance to the property requirements (Sec-tion 4) of this standard is beyond the scope of this standard.1.3 Brick covered by this standard are manufactured fromclay, shale, or
5、 similar naturally occurring substances andsubjected to a heat treatment at elevated temperatures (firing).The heat treatment must develop sufficient fired bond betweenthe particulate constituents to provide the strength and dura-bility requirements of this specification. (See firing and firedbond i
6、n Terminology C1232.)1.4 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:2C67 Test Methods for
7、Sampling and Testing Brick andStructural Clay TileC1232 Terminology of Masonry3. Classification3.1 GradesTwo grades of sewer brick are covered:3.1.1 Grade SSBrick intended for use in structures requir-ing low absorption and resistance to the action of sewagecarrying large quantities of abrasive mate
8、rial at velocitiesexceeding 8 ft (2.4 m)/s.3.1.2 Grade SMBrick intended for use in structures re-quiring resistance to the action of sewage carrying abrasivematerials at velocities less than 8 ft (2.4 m)/s.3.2 GradesTwo grades of manhole brick are covered:3.2.1 Grade MSBrick intended for use in manh
9、oles andcatch basins not requiring high degrees of abrasive resistancebut where a high and uniform degree of resistance to frostaction and disintegration is needed when the brick may befrozen when permeated with water.3.2.2 Grade MMBrick intended for use in manholes notrequiring high degrees of abra
10、sive resistance but where amoderate and nonuniform degree of resistance to frost actionand disintegration is needed when the brick may be permeatedwith water.4. Physical Properties4.1 Brick for sewer or drainage structures shall conform tothe physical properties for the specified Grades SS or SM ase
11、stablished in Table 1.4.2 Brick for manholes, catch basins, and other relatedstructures shall conform to the physical properties for thespecified Grades MS or MM as established in Table 1.4.3 Unless otherwise specified by the purchaser, brick ofGrade SS shall be accepted instead of Grade SM; also Gr
12、adeMS shall be accepted instead of Grade MM.5. Dimensions and Permissible Variations5.1 The size of the brick shall be specified by the purchaser,selecting any of the standard sizes of building brick.5.2 For any lot of sewer brick furnished under this specifi-cation, not more than 2 % of the brick s
13、hall vary from thenominal size requirements specified in 5.1 by more than 618in. (3 mm) in either transverse dimension, or by more than614 in. (6 mm) in length.1This specification is under the jurisdiction of ASTM Committee C15 onManufactured Masonry Units and is the direct responsibility of Subcomm
14、itteeC15.02 on Brick and Structural Clay Tile.Current edition approved June 1, 2011. Published June 2011. Originallyapproved in 1921. Last previous edition approved in 2009 as C32 09. DOI:10.1520/C0032-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer S
15、ervice at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe 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 1
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