Title:
Changes to ASTM Cement & Concrete Standards to Facilitate Sustainable Initiatives
Author(s):
R Doug Hooton
Publication:
Web Session
Volume:
ws_F23_NEU_DouglasHooton.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/29/2023
Abstract:
With industry and government focus on sustainability and in attaining net zero carbon emissions by 2050, some new cement and concrete specifications and test methods need to be adopted or existing ones revised to allow the use of some low-carbon concretes. Some examples of such changes include charges C595 to allow use of Type IL and IT cements, to C618 to allow use of harvested coal ash including fly ash co-mingled with bottom ash, C1866/C1866M and on ground glass pozzolan, and very recent adoption of C1905/C1910M Test Methods for Cements that Require Carbonation Curing. However, new start-up companies with new types of materials that have application in producing low-carbon concrete are coming to ASTM meetings and many will likely need additional new specifications and test methods to allow them to be adopted in construction. Some of these issues will be discussed.