Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
AASHTO T 166:2021
Năm ban hành 2021
Publication date
Tình trạng
A - Còn hiệu lực
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Tên tiếng Anh
Title in English Standard Method of Test for Bulk Specific Gravity (Gmb) of Compacted Asphalt Mixtures Using Saturated Surface-Dry Specimens
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Thay thế cho
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Số trang
Page 7
Giá:
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Phạm vi áp dụng
Scope of standard This method of test covers the determination of bulk specific gravity (Gmb) of specimens of compacted asphalt mixtures. This method should not be used with specimens that contain open or interconnecting voids or absorb more than 2.0 percent of water by volume, as determined in Sections 7.2 or 10.2 herein. If the specimen contains open or interconnecting voids or absorbs more than 2.0 percent of water by volume, then T 275 or T 331 should be used. The bulk specific gravity (Gmb) of the compacted asphalt mixture may be used in calculating the unit mass of the mixture. Note 1-The values for bulk specific gravity (Gmb) obtained from T 275 or T 331 may differ. Care should be exercised when comparing test results from T 275 and T 331. The values stated in SI units are to be regarded as the standard. This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all the safety concerns, if any, 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. The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of R 18 are generally considered capable of competent and objective testing/sampling/ins |