TB/T 2922.1-1998
Test method for alkali activity of aggregates used in railway concrete petrographic method (English Version)

Standard No.

TB/T 2922.1-1998

Language

Chinese, Available in English version

Release Date

1998

Published By

Professional Standard - Railway

Status

Be replaced 2019-03

Replace By

TB/T 3275-2018

Latest

TB/T 3275-2018

Scope

This standard specifies the sampling methods, instruments and equipment, test procedures and results processing methods for testing the alkali activity of aggregates used in railway concrete using the petrographic method. This standard is suitable for determining the alkali activity categories of aggregates and qualitatively evaluating the alkali activity of aggregates.

TB/T 2922.1-1998 history

• 2019 TB/T 3275-2018 railway concrete
• 1998 TB/T 2922.1-1998 Test method for alkali activity of aggregates used in railway concrete petrographic method

TB/T 2922.1-1998 Test method for alkali activity of aggregates used in railway concrete petrographic method was changed to TB/T 3275-2018 railway concrete.