AASHTO T113 -2006(2010) 国外国际标准.pdf

Standard Method of Test for Lightweight Pieces in Aggregate AASHTO Designation: T 113-06 (2010)1 ASTM Designation: C 123-04 1. SCOPE 1.1. This method covers the determination of the percentage of lightweight pieces in aggregate by means of sink-float separation in a heavy liquid of suitable specific gravity. 1.2. The values stated in SI units are to be regarded as the standard. 1.3. This standard involves hazardous materials, operations, or equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see Note 1. 2. REFERENCED DOCUMENTS 2.1. AASHTO Standards : M 6, Fine Aggregate for Hydraulic Cement Concrete M 80, Coarse Aggregate for Hydraulic Cement Concrete M 92, Wire-Cloth Sieves for Testing Purposes M 231, Weighing Devices Used in the Testing of Materials R 16, Regulatory Information for Chemicals Used in AASHTO Tests T 2, Sampling of Aggregates T 84, Specific Gravity and Absorption of Fine Aggregate T 85, Specific Gravity and Absorption of Coarse Aggregate T 248, Reducing Samples of Aggregate to Testing Size 2.2. ASTM Standards : D 3665, Standard Practice for Random Sampling of Construction Materials E 100, Standard Specification for ASTM Hydrometers 3. SIGNIFICANCE AND USE 3.1. This method is used to determine conformance with provisions of M 6 and M 80 pert