Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: AASHTO T 30:2021
• Năm ban hành / Publication date: 2021
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Standard Method of Test for Mechanical Analysis of Extracted Aggregate

Thay thế cho / Replace

AASHTO T 30:2019

• Số trang / Page: 7

Phạm vi áp dụng / Scope of standard

This method covers a procedure for the determination of the particle-size distribution of fine and coarse aggregates extracted from asphalt mixtures using sieves with square openings.

The values stated in SI units are to be regarded as the standard.

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/inspection/etc. Users of this standard are cautioned that compliance with R 18 alone does not completely assure reliable results. Reliable results depend on many factors; following the suggestions of R 18 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors.