AASHTO M 80-2013 Standard Specification for Coarse Aggregate for Hydraulic Cement Concrete.pdf
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1、Standard Specification for Coarse Aggregate for Hydraulic Cement Concrete AASHTO Designation: M 80-13 American Association of State Highway and Transportation Officials 444 North Capitol Street N.W., Suite 249 Washington, D.C. 20001 TS-1c M 80-1 AASHTO Standard Specification for Coarse Aggregate for
2、 Hydraulic Cement Concrete AASHTO Designation: M 80-13 1. SCOPE 1.1. This specification covers coarse aggregate, other than lightweight aggregate, for use in concrete. Several classes and gradings of coarse aggregate are described (Notes 1 and 2). Specifications for fine aggregate are provided in M
3、6. Note 1This specification is regarded as adequate to ensure satisfactory materials for most concrete. It is recognized that, for certain work or in certain regions, it may be either more or less restrictive than needed. Note 2Definitions of terms used in this specification may be found in ASTM C12
4、5. 1.2. The values stated in SI units are to be regarded as the standard. 2. REFERENCED DOCUMENTS 2.1. AASHTO Standards: M 6, Fine Aggregate for Hydraulic Cement Concrete M 43, Sizes of Aggregate for Road and Bridge Construction PP 65, Determining the Reactivity of Concrete Aggregates and Selecting
5、Appropriate Measures for Preventing Deleterious Expansion in New Concrete Construction T 2, Sampling of Aggregates T 11, Materials Finer Than 75-m (No. 200) Sieve in Mineral Aggregates by Washing T 19M/T 19, Bulk Density (“Unit Weight”) and Voids in Aggregate T 27, Sieve Analysis of Fine and Coarse
6、Aggregates T 96, Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine T 104, Soundness of Aggregate by Use of Sodium Sulfate or Magnesium Sulfate T 112, Clay Lumps and Friable Particles in Aggregate T 113, Lightweight Pieces in Aggregate 2.2. AST
7、M Standards: C125, Standard Terminology Relating to Concrete and Concrete Aggregates STP169D, Significance of Tests and Properties of Concrete and Concrete-Making Materials 3. ORDERING INFORMATION 3.1. The purchaser or specifier shall include the following information in the purchase order or contra
8、ct documents: 2015 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-1c M 80-2 AASHTO 3.1.1. Reference to this specification, M 80, and year of issue; 3.1.2. Grading to be furnished (Size No.) (Section 5.1);
9、 3.1.3. Class designation of aggregate (Section 6.1 and Table 2); 3.1.4. In the case of the sulfate soundness test (Table 2), which salt is to be used. If none is stated, either salt may be used; 3.1.5. If additional requirements are necessary for addressing reactive materials (Section 6.2); and 3.1
10、.6. Any exceptions or additions to this specification. 4. GENERAL CHARACTERISTICS 4.1. Coarse aggregate shall consist of gravel, crushed gravel, crushed stone, crushed air-cooled blast-furnace slag, or crushed concrete, or a combination thereof, conforming to the requirements of this specification.
11、5. GRADING 5.1. Coarse aggregates shall conform to the requirements prescribed in M 43 for the size number specified. Note 3The ranges shown in M 43 are by necessity very wide in order to accommodate nationwide conditions. For quality control of any specific operation, a producer should develop an a
12、verage gradation for the particular source and production facilities, and control the gradation within reasonable tolerances from this average. Where coarse aggregate sizes numbers 357 or 467 are used, the aggregate should be furnished in at least two separate sizes. 6. DELETERIOUS SUBSTANCES AND PH
13、YSICAL PROPERTIES 6.1. Coarse aggregates shall conform to the limits given in Table 2 for the class specified, except as provided in Section 6.3 (see also Notes 4 and 5). Note 4Aggregate conforming to the requirements for the various classes should generally be suitable for the following uses as sho
14、wn in Table 1. Note 5The purchaser or specifier, due to his or her knowledge of the requirements for concrete aggregates for specific uses in specific areas, may wish to supplement the requirements of Table 2 by placing limits on the amount of local deleterious substances permitted. 2015 by the Amer
15、ican Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-1c M 80-3 AASHTO Table 1Typical Uses for Aggregate Conforming to the Requirements for the Various Classes Typical Uses (Suggested) Weathering Exposure Class of Aggregat
16、e Architectural concrete, bridge decks, other uses where surface disfigurement due to popouts, etc., is objectionable Severe Moderate Negligible A B C Concrete pavements, base courses, sidewalks where a moderate number of popouts can be tolerated Severe Moderate Negligible B C D Concealed concrete n
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