R 91-2018
Standard Practice for Determining Aggregate Source Shape Values from Digital Image Analysis Shape Properties

Standard No.

R 91-2018

Release Date

2018

Published By

AASHTO - American Association of State Highway and Transportation Officials

Latest

R 91-2018

Scope

This standard covers the determination of aggregate source and source blend shape characteristics using gradation analysis and shape properties determined by means of digital image analysis. This standard may involve hazardous materials@ operations@ and 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.

R 91-2018 history

• 2018 R 91-2018 Standard Practice for Determining Aggregate Source Shape Values from Digital Image Analysis Shape Properties