TB/T 2922.4-1998
Test method for alkali activity of aggregates used in railway concrete - rock column method (English Version)
- Standard No.
- TB/T 2922.4-1998
- Language
- Chinese, Available in English version
- Release Date
- 1998
- Published By
- Professional Standard - Railway
- Status
- 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 rock column method. This standard applies to carbonate rock aggregates.
TB/T 2922.4-1998 history
- 2019 TB/T 3275-2018 railway concrete
- 1998 TB/T 2922.4-1998 Test method for alkali activity of aggregates used in railway concrete - rock column method
TB/T 2922.4-1998 Test method for alkali activity of aggregates used in railway concrete - rock column method was changed to TB/T 3275-2018 railway concrete.
