ASTM C1610C1610M-17 Standard Test Method for Static Segregation of Self-Consolidating Concrete Using Column Technique.pdf
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1、Designation: C1610/C1610M 17Standard Test Method forStatic Segregation of Self-Consolidating Concrete UsingColumn Technique1This standard is issued under the fixed designation C1610/C1610M; the number immediately following the designation indicates theyear of original adoption or, in the case of rev
2、ision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This test method covers the determination of staticsegregation of self-consolidating concrete (SCC
3、) by measuringthe coarse aggregate content in the top and bottom portions ofa cylindrical specimen (or column).1.2 This test method is not applicable to self-consolidatingconcrete containing lightweight aggregate.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separate
4、ly as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.4 The text of this standard references notes and footnotesthat provide e
5、xplanatory material. These notes and footnotes(excluding those in tables and figures) shall not be consideredas requirements of the standard.1.5 This test method is applicable under laboratory and fieldconditions.1.6 This standard does not purport to address all of thesafety concerns, if any, associ
6、ated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. (WarningFreshhydraulic cementitious mixtures are caustic and may causechemical burns to skin and tiss
7、ue upon prolonged exposure.2)1.7 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Orga
8、nization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3C125 Terminology Relating to Concrete and Concrete Ag-gregatesC127 Test Method for Relative Density (Specific Gravity)and Absorption of Coarse AggregateC173/C173M Test Method forAir Content of Freshly Mixe
9、dConcrete by the Volumetric MethodC192/C192M Practice for Making and Curing Concrete TestSpecimens in the LaboratoryC231 Test Method for Air Content of Freshly Mixed Con-crete by the Pressure MethodC1712 Test Method for Rapid Assessment of Static Segre-gation Resistance of Self-Consolidating Concret
10、e UsingPenetration TestC1758/C1758M Practice for Fabricating Test Specimenswith Self-Consolidating ConcreteD1785 Specification for Poly(Vinyl Chloride) (PVC) PlasticPipe, Schedules 40, 80, and 1203. Terminology3.1 Definitions:3.1.1 For definitions of terms used in this test method, referto Terminolo
11、gy C125.3.2 Definitions of Terms Specific to This Standard:3.2.1 static segregation, nsettlement of coarse aggregateparticles in an undisturbed mass of fresh concrete.4. Summary of Test Method4.1 Asample of freshly-mixed self-consolidating concrete isplaced in a cylindrical mold without tamping or v
12、ibration. Themold is separated into three sections representing differentlevels of the cylindrical specimen (or column). Portions ofSCC from the top and bottom section are washed on a 4.75 mm(No. 4) sieve, leaving the coarse aggregate on the sieve. Themasses of coarse aggregate in the top and the bo
13、ttom sectionsare determined and the percent static segregation is calculated.1This test method is under the jurisdiction of ASTM Committee C09 onConcrete and Concrete Aggregates and is the direct responsibility of SubcommitteeC09.47 on Self-Consolidating Concrete.Current edition approved June 15, 20
14、17. Published July 2017. Originallyapproved in 2006. Last previous edition approved in 2014 as C1610/C1610M 14.DOI: 10.1520/C1610_C1610M-17.2Section on Safety Precautions, Manual of Aggregate and Concrete Testing,Annual Book of ASTM Standards, Vol 04.02.3For referenced ASTM standards, visit the ASTM
15、 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Har
16、bor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendat
17、ions issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.15. Significance and Use5.1 This test method provides users with a procedure todetermine the potential static segregation of self-consolidatingconcrete.NOTE 1This test method may not be sufficiently rapid to eval
18、uateself-consolidating concrete mixtures in the field before placement. TestMethod C1712 provides a rapid method for assessing static segregationresistance of self-consolidating concrete.5.2 This test method shall be used to develop self-consolidating concrete mixtures with segregation not exceed-in
19、g specified limits. Self-consolidating concrete is a fluidconcrete that can be prone to segregation if not proportioned tobe cohesive. A cohesive self-consolidating concrete is impor-tant for all applications but is especially critical for deep-section applications such as walls or columns. Therefor
20、e, thedegree of segregation can indicate if a mixture is suitable forthe application.NOTE 2Some level of segregation is tolerable as long as the desiredstrength and durability performance is achieved.6. Apparatus6.1 Balanceas described in Test Method C127.6.2 Column MoldThe column portion of the mol
21、d shall bepoly(vinyl chloride) (PVC) plastic pipe Schedule 40 meetingthe requirements of Specification D1785. The column shall be200 mm 8 in. in nominal diameter by 660 mm 26 in. inheight and separated into 3 sections. The top section shall be165 mm 6.5 in. in height, the middle section 330 mm 13 in
22、.in height, and the bottom section 165 mm 6.5 in. in height, asshown in Fig. 1. Each section shall have its ends flat and planeand be marked as “Top”, “ Middle”, or “Bottom” relative to itslocation in the column. Couplers, brackets, clamps, or otherequivalent fastening systems shall be used for secu
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