ASTM D1241-2007 Standard Specification for Materials for Soil-Aggregate Subbase Base and Surface Courses《土壤集料底基层、底层和表层用材料的标准规范》.pdf
《ASTM D1241-2007 Standard Specification for Materials for Soil-Aggregate Subbase Base and Surface Courses《土壤集料底基层、底层和表层用材料的标准规范》.pdf》由会员分享,可在线阅读,更多相关《ASTM D1241-2007 Standard Specification for Materials for Soil-Aggregate Subbase Base and Surface Courses《土壤集料底基层、底层和表层用材料的标准规范》.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 1241 07Standard Specification forMaterials for Soil-Aggregate Subbase, Base, and SurfaceCourses1This standard is issued under the fixed designation D 1241; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of
2、last revision. A number in parentheses 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. Scope*1.1 This specification covers the quali
3、ty and grading of thefollowing materials for use in the construction of subbase,base, and surface courses: sand-clay mixtures; gravel; stone orslag screenings; sand; crusher-run coarse aggregate consistingof gravel, crushed stone, or slag combined with soil mortar; orany combination of these materia
4、ls. The requirements areintended to cover materials having normal specific gravity,absorption, and gradation characteristics. Where other materi-als are to be used, appropriate limits suitable to their use mustbe specified.1.2 The following precautionary caveat pertains only to theTest Methods porti
5、on, Section 9, of this specification. Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tio
6、ns prior to use.2. Referenced Documents2.1 ASTM Standards:2C117 Test Method for Materials Finer than 75-m (No.200) Sieve in Mineral Aggregates by WashingC 131 Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the LosAngeles MachineC 136 Test Method fo
7、r Sieve Analysis of Fine and CoarseAggregatesD75 Practice for Sampling AggregatesD 420 Guide to Site Characterization for Engineering De-sign and Construction PurposesD 421 Practice for Dry Preparation of Soil Samples forParticle-Size Analysis and Determination of Soil Con-stantsD 653 Terminology Re
8、lating to Soil, Rock, and ContainedFluidsD 3740 Practice for Minimum Requirements for AgenciesEngaged in the Testing and/or Inspection of Soil and Rockas Used in Engineering Design and ConstructionD 4318 Test Methods for Liquid Limit, Plastic Limit, andPlasticity Index of Soils3. Terminology3.1 For
9、definitions of terms in this standard, refer toTerminology D 653.4. Types4.1 The following types of mixtures are specified:4.1.1 Type IMixtures shall consist of stone, gravel, or slagwith natural or crushed sand and fine mineral particles passinga No. 200 (75-m) sieve and shall conform to the requir
10、ementsof Table 1 for Gradation A, B, C, or D.4.1.2 Type IIMixtures shall consist of natural or crushedsand with fine mineral particles passing a No. 200 (75-m)sieve, with or without stone, gravel, or slag, and shall conformto the requirements of Table 1 for Gradation E or F.5. General Requirements5.
11、1 Coarse AggregateCoarse aggregate, retained on a No.4 (4.75 mm) sieve, for use in Type I and Type II mixtures, shallconsist of hard, durable, and sound particles or fragments ofstone, gravel, or slag. Coarse aggregate shall have abrasionloss, determined by Test Method C 131, of not more than 50.NOT
12、E 1A higher or lower abrasion loss may be specified by theengineer, depending upon the materials available for the work.5.2 Fine AggregateFine aggregate, passing a No. 4 (4.75mm) sieve, for use in Type I and Type II mixtures, shall consistof natural or crushed sand and fine mineral particles passing
13、 theNo. 200 (75-m) sieve. The fraction passing the No. 200(75-m) sieve shall not be greater than two thirds of thefraction passing the No. 40 (425-m) sieve as determined by1This specification is under the jurisdiction of ASTM Committee D18 on Soiland Rock and is the direct responsibility of Subcommi
14、ttee D18.08 on Special andConstruction Control Tests.Current edition approved July 1, 2007. Published July 2007. Originally approvedin 1952. Last previous edition approved in 2000 as D 1241 00.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at se
15、rviceastm.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 19428-2959, U
16、nited States.Test Methods C117and C 136. The fraction passing the No. 40(425-m) sieve shall have a liquid limit not greater than 25 anda plasticity index not greater than 6 as determined by TestMethod D 4318.5.3 The composite material of Types I and II shall be free oforganic matter and clay lumps a
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