Work Item
ASTM WK60809
New Specification for Colloidal Silica for Use in Concrete
1. Scope
1.1 This specification covers colloidal silica for use in concretes in which pozzolanic action is desired. 1.2 Units--The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard. 1.3 The text of this standard references notes and footnotes that provide explanatory information. These notes and footnotes (excluding those in table and figures) shall not be considered as requirements of the standard. 1.4 This standard does not purport to address all of 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.
Keywords
colloidal silica; nanoparticle; pozzolanic
Rationale
Needed for construction industry adaptation of colloidal silica in concrete. Right now, colloidal silica is being used without any specification or oversight.
The title and scope are in draft form and are under development within this ASTM Committee.
Work Item Status
Date Initiated: 10-18-2017
Technical Contact: Jon Belkowitz
Item: 001
Ballot: C09.24 (17-04)
Status: Will Reballot Item
Item: 002
Ballot: C09.24 (18-02)
Status: Will Reballot Item
Item: 002
Ballot: C09.24 (19-05)
Status: Will Reballot Item
Item: 001
Ballot: C09.24 (20-01)
Status: Will Reballot Item
Item: 001
Ballot: C09 (21-02)
Status: Will Reballot Item
Item: 001
Ballot: C09.24 (21-01)
Status: Will Reballot Item
Item: 002
Ballot: C09 (21-05)
Status: Will Reballot Item
Item: 002
Ballot: C09 (22-02)
Status: Will Reballot Item