1、Designation: C 404 07Standard Specification forAggregates for Masonry Grout1This standard is issued under the fixed designation C 404; 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 parenthes
2、es indicates the year of last reapproval. Asuperscript epsilon (e) 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
3、values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.3 The following precautionary cavet pertains only to thetest methods portion, Section 8 of the standard. This standarddoes not purport to address all of the safety concerns, if any,
4、associated with its use. It is the responsiblity 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 f
5、or Organic Impurities in Fine Aggre-gates for 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 Minera
6、l Aggregates by WashingC 123 Test Method for Lightweight Particles in AggregateC 127 Test Method for Density, Relative Density (SpecificGravity), and Absorption of Coarse AggregateC 128 Test Method for Density, Relative Density (SpecificGravity), and Absorption of Fine AggregateC 136 Test Method for
7、 Sieve Analysis of Fine and CoarseAggregatesC 142 Test Method for Clay Lumps and Friable Particles inAggregatesC 144 Specification for Aggregate for Masonry MortarC 476 Specification for Grout for MasonryD75 Practice for Sampling Aggregates3. General Characteristics3.1 Aggregates shall consist of na
8、tural 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
9、 blast-furnace slag processed toassure suitable gradation.NOTE 1Care 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 ors
10、hall comply with the requirements of 4.2.NOTE 2Size No. 1 is that specified for concrete sand in SpecificationC33; Size No. 2 is that specified for masonry mortar in SpecificationC 144; and Sizes 8 and 89 are standard sizes as given in SpecificationC33.4.2 Aggregates of gradations other than those c
11、overed 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.1This specification is und
12、er 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 June 1, 2007. Published July 2007. Originally approvedin 1957. Last previous edition approved
13、 in 2006 as C 404 06.2For 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.1Copyright ASTM International, 100 Barr
14、Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.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 requirement
15、s of Specification C 476.5. Deleterious Substances5.1 The amounts of deleterious substances in either fine orcoarse aggregate shall not exceed the following:PermissibleContent, max,Deleterious Substances weight %Friable particles 1.0Lightweight particles, floating on liquid 0.5Ahaving a specific gra
16、vity of 2.0_AThis 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 s
17、tandard 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 that, when tested for the e
18、ffect of organic impuritieson strength of mortar, the relative strength at 7 days calculatedin accordance with Section 11 of Test Method C87is not lessthan 95 %.7. Soundness7.1 Except as herein provided, either fine or coarse aggre-gates subjected to 5 cycles of the soundness test shall show aloss,
19、weighted in accordance with the grading of a samplecomplying with the limitations prescribed in Section 4, notgreater than 10 % when sodium sulfate is used or 15 % whenmagnesium sulfate is used.7.2 Aggregate failing to meet the requirements of 7.1 maybe accepted, provided that grout of comparable pr
20、opertiesmade from similar aggregate from the same source has beenexposed to weathering, similar to that to be encountered, for aperiod of more than 5 years without appreciable disintegration.8. Test Methods for Sampling and Testing8.1 Sample and test the aggregate in accordance with thefollowing sta
21、ndards, except as otherwise provided in thisspecification:8.1.1 SamplingPractice D75.8.1.2 GradingTest Method C 136.8.1.3 Amount of Material Finer Than 75-m (No. 200)SieveTest Method C117.8.1.4 Organic ImpuritiesTest Method C40.8.1.5 Effect of Organic Impurities on StrengthTestMethod C87.8.1.6 Friab
22、le ParticlesTest Method C 142.8.1.7 Lightweight ConstituentsTest Method C 123.8.1.8 SoundnessTest Method C88.8.1.9 DensityDetermine the density of the fine aggregatein accordance with Test Method C 128 and the density of thecoarse aggregate in accordance with Test Method C 127.9. Keywords9.1 aggrega
23、te; coarse aggregate; fine aggregate; grout;masonry; sand; soundnessTABLE 1 Grading RequirementsSieve SizeAmounts Finer than Each Laboratory Sieve (Square Openings), weight %Fine Aggregate Coarse AggregateSize No. 1Size No. 2Size No. 8 Size No. 89Natural Manufactured12.5-mm (12-in.) . . . 100 1009.5
24、-mm (38-in.) 100 . . 85 to 100 90 to 1004.75-mm (No. 4) 95 to 100 100 100 10 to 30 20 to 552.36-mm (No. 8 ) 80 to 100 95 to 100 95 to 100 0 to 10 5 to 301.18-mm (No. 16) 50 to 85 70 to 100 70 to 100 0 to 5 0 to 10600-m (No. 30) 25 to 60 40 to 75 40 to 75 . 0 to 5300-m (No. 50) 5 to 30 10 to 35 20 to
25、 40 . .150-m (No. 100) 0 to 10 2 to 15 10 to 25 . .75-m (No. 200) . 0 to 5 0 to 10 . .C404072ASTM 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 determinati
26、on of the validity of any such 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 withdr
27、awn. Your comments are invited 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
28、comments have not received a 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 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).C404073
