Title:
A Durability-based Performance Evaluation Approach for the Effective Use of Uncommon Coal Ashes in Concrete
Author(s):
Anol Mukhopadhyay
Publication:
Web Session
Volume:
ws_S23_AnolMukhopadhyay.PDF
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
4/2/2023
Abstract:
Earlier, a simplified, excel based tool was developed based on extensive experimental data by innovative/new test methods to do durability-based performance evaluation of conventional coal ashes in HPC. The aim was to offer the contractor an easy-to-use tool to predict the durability performance of the concrete mixes in terms of ASR, chloride-induced corrosion, freeze-thaw damage, and shrinkage-based cracking potential during the mix design development stage. Some uncommon coal ashes (e.g., blended ash, bottom ash, harvested ash, etc.) were subsequently evaluated through (i) detailed characterization including reactivity measurements, and (ii) durability-based performance evaluation using the developed tool with selective validation testing. The merits of an easy-to-use tool for rapid durability-based performance evaluation of some of these uncommon coal ashes will be highlighted.