Title:
Multi-Approaches to Improve Internally Cured Concrete for Rigid Pavement Application (Open Source)
Author(s):
Sangyoung Han, Thanachart Subgranon, Hung-Wen Chung, Kukjoo Kim, and Mang Tia
Publication:
Materials Journal
Volume:
121
Issue:
3
Appears on pages(s):
29-42
Keywords:
critical stress analysis; full-scale test slabs; internally cured concrete (ICC); optimized aggregate gradation (OAG); polymeric microfibers (PMFs); shrinkage-reducing admixture (SRA)
DOI:
10.14359/51740564
Date:
5/1/2024
Abstract:
A comprehensive laboratory testing program, field-testing program,
numerical analysis, and life-cycle cost analysis were conducted to
evaluate the beneficial effects of incorporating shrinkage-reducing
admixture (SRA), polymeric microfibers (PMFs), and optimized
aggregate gradation (OAG) into internally cured concrete (ICC)
mixtures for rigid pavement applications. Results from the laboratory
program indicate that all the ICC mixtures outperformed
the standard concrete (SC) mixture. All the ICC mixtures showed
a decrease in drying shrinkage compared to the SC mixture. Based
on the laboratory program, three ICC mixtures and one SC mixture
were selected for the full-scale test and subjected to a heavy vehicle
simulator for accelerated fatigue testing. Extensive testing and
analysis have shown that ICC mixtures incorporating SRA, PMFs,
and OAG can be beneficially used in pavement applications to
achieve increased pavement life.