Title:
Portland Limestone Cement Variability and Use in High-Early-Strength (HES) Concrete Mixtures
Author(s):
Cooper
Publication:
Web Session
Volume:
ws_S24_Cooper.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
3/23/2024
Abstract:
Cement producers are increasingly transitioning from Type I, II, and Type I/II cements to portland limestone cements (PLCs), referred to as Type IL. With the increasing number of producers, a new opportunity has arisen for evaluating how the production of these cements changes their properties and, consequently, their performance. Additionally, with Type I/II cement availability decreasing, the use of PLC needs to be evaluated for all applications. This presentation will discuss the variability of physical and microstructural characteristics of PLCs from across the United States, and how they may affect the performance of the cement within concrete. This presentation additionally discusses the use of PLCs in high-early strength concrete materials, specifically for repair. The influence of accelerators on PLC, early-age compressive strength of PLC mortars, and the porosity of PLC systems with and without supplementary cementitious materials are evaluated.