Title:
Reducing Clinker Content and Carbon Footprint of Concrete Using SCMs, Limestone Cement, and Optimized Aggregate Gradations
Author(s):
R. Doug Hooton
Publication:
Web Session
Volume:
ws_F18_Hooton.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/15/2018
Abstract:
Two approached to reducing the carbon footprint of concrete are to, 1. Reduce the clinker content of the cementitious binder and, 2. Reduce the total binder content. For the first, combinations of supplementary cementitious materials can be combined with Type IL cements while still attaining early-age strength development with at least a 40% reduction in clinker content. For the second, optimizing aggregate gradations with at least three components can result in savings of up to 15% of the required cementitious materials content while also reducing concrete permeability and shrinkage. The methodologies for combining both of these approaches will be discussed.