1、Standard Specification for Sizes of Aggregate for Road and Bridge Construction AASHTO Designation: M 43-05 (2013)1ASTM Designation: D448-12 American Association of State Highway and Transportation Officials 444 North Capitol Street N.W., Suite 249 Washington, D.C. 20001 TS-1c M 43-1 AASHTO Standard
2、Specification for Sizes of Aggregate for Road and Bridge Construction AASHTO Designation: M 43-05 (2013)1ASTM Designation: D448-12 1. SCOPE 1.1. This specification defines aggregate size designations and ranges in mechanical analyses for standard sizes of coarse aggregate and screenings for use in t
3、he construction and maintenance of various types of highways and bridges. 1.2. The values stated in SI units are to be regarded as the standard. 2. REFERENCED DOCUMENTS 2.1. AASHTO Standards: M 92, Wire-Cloth Sieves for Testing Purposes T 2, Sampling of Aggregates T 27, Sieve Analysis of Fine and Co
4、arse Aggregates 3. SIGNIFICANCE AND USE 3.1. Some contract documents specify certain aggregate sizes for specific uses or may suggest one or more of these sizes as appropriate for the preparation of various end-product mixtures. In some cases, closer limits on variability of the aggregate grading ar
5、e required. 4. MANUFACTURE 4.1. The standard sizes of aggregate described in this classification are manufactured by means of any suitable process used to separate raw material into the desired size ranges. Production of standard sizes by blending two or more different components is also permitted.
6、5. STANDARD SIZES 5.1. Standard sizes of coarse aggregate shall comply with the sizes given in Table 1. All sizes shall be determined by means of laboratory sieves having square openings and conforming to M 92. 6. BASIS OF CLASSIFICATION 6.1. Classification is based upon the size number and size ran
7、ges shown in Table 1 with the aggregate sampled in accordance with T 2 and tested for grading by T 27. 2015 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.Table 1Standard Sizes of Processed Aggregate Size Nu
8、mber Nominal Size, Square Openings Amounts Finer Than Each Laboratory Sieve (Square Openings), Mass, % 100 mm (4 in.) 90 mm (31/2in.) 75 mm (3 in.) 63 mm (21/2in.) 50 mm (2 in.) 37.5 mm (11/2in.) 25.0 mm (1 in.) 19.0 mm (3/4in.) 12.5 mm (1/2in.) 9.5 mm (3/8in.) 4.75 mm (No. 4) 2.36 mm (No. 8) 1.18 m
9、m (No. 16) 300 m (No. 50) 150 m (No. 100) 1 90 to 37.5 mm (3 1/2to 1 1/2in.) 100 90 to 100 25 to 60 0 to 15 0 to 5 2 63 to 37.5 mm (2 1/2to 1 1/2in.) 100 90 to 100 35 to 70 0 to 15 0 to 5 24 63 to 19.0 mm (2 1/2to 3/4in.) 100 90 to 100 25 to 60 0 to 10 0 to 5 3 50 to 25.0 mm (2 to 1 in.) 100 90 to 1
10、00 35 to 70 0 to 15 0 to 5 357 50 to 4.75 mm (2 in. to No. 4) 100 95 to 100 35 to 70 10 to 30 0 to 5 4 37.5 to 19.0 mm (1 1/2to 3/4in.) 100 90 to 100 20 to 55 0 to 15 0 to 5 467 37.5 to 4.75 mm (1 1/2to No. 4) 100 95 to 100 35 to 70 10 to 30 0 to 5 5 25.0 to 12.5 mm (1 to 1/2in.) 100 90 to 100 20 to
11、 55 0 to 10 0 to 5 56 25.0 to 9.5 mm (1 to 3/8in.) 100 90 to 100 40 to 85 10 to 40 0 to 15 0 to 5 57 25.0 to 4.75 mm (1 to No. 4) 100 95 to 100 25 to 60 0 to 10 0 to 5 6 19.0 to 9.5 mm (3/4to 3/8in.) 100 90 to 100 20 to 55 0 to 15 0 to 5 67 19.0 to 4.75 mm (3/4to No. 4) 100 90 to 100 20 to 55 0 to 1
12、0 0 to 5 68 19.0 to 2.36 mm (3/4to No. 8) 100 90 to 100 30 to 65 5 to 25 0 to 10 0 to 5 7 12.5 to 4.75 mm (1/2to No. 4) 100 90 to 100 40 to 70 0 to 15 0 to 5 78 12.5 to 2.36 mm (1/2to No. 8) 100 90 to 100 40 to 75 5 to 25 0 to 10 0 to 5 8 9.5 to 2.36 mm (3/8to No. 8) 100 85 to 100 10 to 30 0 to 10 0
13、 to 5 89 9.5 to 1.18 mm (3/8to No. 16) 100 90 to 100 20 to 55 5 to 30 0 to 10 0 to 5 9 4.75 to 1.18 mm (No. 4 to No. 16) 100 85 to 100 10 to 40 0 to 10 0 to 5 10 4.75 mm (No. 4 to 0)a 100 85 to 100 10 to 30 aScreening. TS-1cM 43-2AASHTO 2015 by the American Association of State Highway and Transport
14、ation Officials.All rights reserved. Duplication is a violation of applicable law.TS-1c M 43-3 AASHTO 7. KEYWORDS 7.1. Classification; coarse aggregate; standard sizes. 1This specification is technically equivalent to ASTM D448-12. 2015 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.
