温馨提示:
1. 部分包含数学公式或PPT动画的文件,查看预览时可能会显示错乱或异常,文件下载后无此问题,请放心下载。
2. 本文档由用户上传,版权归属用户,汇文网负责整理代发布。如果您对本文档版权有争议请及时联系客服。
3. 下载前请仔细阅读文档内容,确认文档内容符合您的需求后进行下载,若出现内容与标题不符可向本站投诉处理。
4. 下载文档时可能由于网络波动等原因无法下载或下载错误,付费完成后未能成功下载的用户请联系客服处理。
网站客服:3074922707
TM_C_404_
_11
Designation:C40411Standard Specification forAggregates for Masonry Grout1This standard is issued under the fixed designation C404;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 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 Department of Defense.1.Scope1.1 This specification covers aggregate for use in grout formasonry.1.2 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.3 The following precautionary caveat pertains only to thetest methods portion,Section 8 of the standard.This standarddoes not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the user of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.2.Referenced Documents2.1 ASTM Standards:2C33 Specification for Concrete AggregatesC40 Test Method for Organic Impurities in Fine Aggregatesfor ConcreteC87 Test Method for Effect of Organic Impurities in FineAggregate on Strength of MortarC88 Test Method for Soundness of Aggregates by Use ofSodium Sulfate or Magnesium SulfateC117 Test Method for Materials Finer than 75-m(No.200)Sieve in Mineral Aggregates by WashingC123 Test Method for Lightweight Particles in AggregateC127 Test Method for Density,Relative Density(SpecificGravity),and Absorption of Coarse AggregateC128 Test Method for Density,Relative Density(SpecificGravity),and Absorption of Fine AggregateC136 Test Method for Sieve Analysis of Fine and CoarseAggregatesC142 Test Method for Clay Lumps and Friable Particles inAggregatesC144 Specification for Aggregate for Masonry MortarC476 Specification for Grout for MasonryD75 Practice for Sampling Aggregates3.General Characteristics3.1 Aggregates shall consist of natural sand or manufac-tured sand,used alone or in combination with coarse aggregateas described in this specification.Manufactured sand is theproduct obtained by crushing stone,gravel,or air-cooled ironblast-furnace slag.Coarse aggregate shall consist of crushedstone,gravel,or air-cooled iron blast-furnace slag processed toassure suitable gradation.NOTE1Care should be taken to ensure a suitable particle shape,sinceexcessive quantities of flat and elongated particles have historically causedproblems with workability.4.Grading4.1 Grading shall conform to the requirements in Table 1 orshall comply with the requirements of 4.2.NOTE2Size No.1 is that specified for concrete sand in SpecificationC33;Size No.2 is that specified for masonry mortar in SpecificationC144;and Sizes 8 and 89 are standard sizes as given in Specification C33.4.2 Aggregates of gradations other than those covered byTable 1 are permitted if all of the requirements of 4.2.1,4.2.2,and 4.2.3 are met.4.2.1 One hundred percent of the fine aggregate shall passthe 9.5mm(38-in.)sieve and no more than 5%natural sand or10%for manufactured sand shall pass the 75-mm(No.200)sieve.4.2.2 One hundred percent of the coarse aggregate shall passthe 12.5-mm(12-in.)sieve and no more than 5%shall pass the600-m(No.30)sieve.4.2.3 The compressive strength of grout shall be specifiedand meet the requirements of Specification C476.5.Deleterious Substances5.1 The amounts of deleterious substances in either fine orcoarse aggregate shall not exceed the following:1This specification is under the jurisdiction of ASTM Committee C12 onMortars and Grouts for Unit Masonry and is the direct responsibility of Subcom-mittee C12.04 on Specifications for Aggregates for Mortars.Current edition approved July 1,2011.Published July 2011.Originally approvedin 1957.Last previous edition approved in 2007 as C40407.DOI:10.1520/C0404-11.2For 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 ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 PermissibleContent,max,Deleterious Substancesweight%Friable particles1.0Lightweight particles,floating on liquid0.5Ahaving a specific gravity of 2.0AThis requirement does not apply to blast-furnace slag aggregate.6.Organic Impurities6.1 The fine aggregate shall be free from injurious amountsof organic impurities.Except as herein provided,aggregatessubjected to the test for organic impurities and producing acolor darker than the standard shall be rejected.6.2 Fine aggregate failing in the test may be used,providedthat the discoloration is due principally to the presence of smallquantities of coal,lignite,or similar discrete particles.6.3 A fine aggregate failing in the test may be used,provided tha