ASTM C330 C330M-2014 Standard Specification for Lightweight Aggregates for Structural Concrete《结构混凝土用轻质集料的标准规格》.pdf
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1、Designation: C330/C330M 13C330/C330M 14Standard Specification forLightweight Aggregates for Structural Concrete1This standard is issued under the fixed designation C330/C330M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the yea
2、r of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers lightweight aggregates intended for use in structural concrete in which prime consider
3、ations arereducing the density while maintaining the compressive strength of the concrete. Procedures covered in this specification are notintended for job control of concrete.1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in
4、 eachsystem may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.1.2.1 With regard to other units of measure, the values stated in inch-pound units are to be regarded as sta
5、ndard.1.3 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.NOTE 1This specification is regarded as adequate to ensure satisfactory ligh
6、tweight aggregates for most concrete. It is recognized that it may be eithermore or less restrictive than needed for some conditions and for special purposes, such as fire resistance, fill, and concrete constructions, the use of whichis based on load tests rather than conventional design procedures.
7、2. Referenced Documents2.1 ASTM Standards:2C29/C29M Test Method for Bulk Density (“Unit Weight”) and Voids in AggregateC31/C31M Practice for Making and Curing Concrete Test Specimens in the FieldC33 Specification for Concrete AggregatesC39/C39M Test Method for Compressive Strength of Cylindrical Con
8、crete SpecimensC40 Test Method for Organic Impurities in Fine Aggregates for ConcreteC114 Test Methods for Chemical Analysis of Hydraulic CementC127 Test Method for Density, Relative Density (Specific Gravity), and Absorption of Coarse AggregateC128 Test Method for Density, Relative Density (Specifi
9、c Gravity), and Absorption of Fine AggregateC136 Test Method for Sieve Analysis of Fine and Coarse AggregatesC142 Test Method for Clay Lumps and Friable Particles in AggregatesC151 Test Method for Autoclave Expansion of Hydraulic CementC157/C157M Test Method for Length Change of Hardened Hydraulic-C
10、ement Mortar and ConcreteC192/C192M Practice for Making and Curing Concrete Test Specimens in the LaboratoryC496/C496M Test Method for Splitting Tensile Strength of Cylindrical Concrete SpecimensC567 Test Method for Determining Density of Structural Lightweight ConcreteC641 Test Method for Iron Stai
11、ning Materials in Lightweight Concrete AggregatesC666/C666M Test Method for Resistance of Concrete to Rapid Freezing and ThawingC702 Practice for Reducing Samples of Aggregate to Testing SizeD75 Practice for Sampling Aggregates3. Aggregate Types3.1 Two general types of lightweight aggregates are cov
12、ered by this specification, as follows:1 This specification is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee C09.21 onLightweight Aggregates and Concrete.Current edition approved Dec. 1, 2013April 15, 2014. Published
13、 January 2014May 2014. Originally approved in 1953. Last previous edition approved in 20092013 asC33009.13. DOI: 10.1520/C0330_C0330M-13.10.1520/C0330_C0330M-14.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of
14、 ASTM Standardsvolume information, refer to the standards 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 technicall
15、y possible to adequately depict all changes accurately, 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 stand
16、ardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.1 Aggregates prepared by expanding, pelletizing, or sintering products such as blast-furnace slag, clay, diatomite, fly ash,shale, or slate, and3.1.2 Aggregates prepared by proces
17、sing natural materials, such as pumice, scoria, or tuff.3.2 The aggregates shall be composed predominately of lightweight-cellular and granular inorganic material.4. Chemical Composition4.1 Lightweight aggregates shall not contain excessive amounts of deleterious substances, as determined by the fol
18、lowinglimits:4.1.1 Organic Impurities (Test Method C40)Lightweight aggregates that, upon being subjected to test for organic impurities,produce a color darker than the standard shall be rejected, unless it is demonstrated that the discoloration is due to small quantitiesof materials not harmful to t
19、he concrete.4.1.2 Staining (Test Method C641)An aggregate producing a stain index of 60 or higher shall be rejected when the depositedstain is found upon chemical analysis to contain an iron content, expressed as Fe2O3 equal to or greater than 1.5 mg/200 g ofsample.4.1.3 Loss on Ignition (Test Metho
20、ds C114)The loss on ignition of lightweight aggregates shall not exceed 5 %.NOTE 2Some aggregates may contain carbonates or water of hydration that contribute to loss on ignition but may not affect the quality of the product.Therefore, when evaluating an aggregate, consideration should be given to t
21、he material characteristics that cause the ignition loss.5. Physical Properties5.1 Lightweight aggregate under test shall meet the following requirements:5.1.1 Clay Lumps and Friable ParticlesThe total amount of clay lumps and friable particles shall not exceed 2 % by dry mass.5.1.2 GradingThe gradi
22、ng shall conform to the requirements shown in Table 1.NOTE 3The surfaces of pyro-processed lightweight aggregate particles finer than 75 m (No. 200) sieves are not deleterious and may be moderatelypozzolanic.5.1.3 Uniformity of GradingTo ensure reasonable uniformity in the grading of successive ship
23、ments of lightweight aggregate,fineness modulus shall be determined on samples taken from shipments at intervals stipulated by the purchaser. If the finenessmodulus of the aggregate in any shipment differs by more than 7 % from that of the sample submitted for acceptance tests, theaggregate in the s
24、hipment shall be rejected, unless the supplier demonstrates that it will produce concrete of the requiredcharacteristics.5.1.4 Loose Bulk Density (Test Method C29/C29M)The dry loose bulk density of lightweight aggregates shall conform to therequirements shown in Table 2 using a 14 L 12 cubic foot me
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