Optimization Performance of High Volume Fly Ash Self-Consolidating Mixtures with Hydrated Lime (Mortar Component)

Abstract

As is known, more sustainable concrete has become the desired aim of many transportation departments. To produce more sustainable concrete, the emphasis has been placed on replacing cement with more sustainable materials and taken into account, materials cost and CO2 footprint. High volume fly ash with hydrated lime mixtures have been proposed as one potential approach for achieving durable and sustainable concrete. In this first phase study, performance ranking analysis approach is presented to optimize the performance of high volume fly ash mortars. A total of 15 mortar mixtures were prepared at different replacement levels (up to 75 percent). Hydrated lime was incorporated with ASTM Class C fly ash to increase hydration reaction at different dosage levels (between 0-15 percentages). Fresh properties and semi Adiabatic temperature tests were conducted for each mixture. Compressive strength, drying shrinkage, bulk electric conductivity, and electric resistivity (surface) were measured and monitored until the age of 90 days. Cost efficiency was also evaluated. Based on performance ranking approach, five different binder compositions were selected to conduct the second phase of this study.

Meeting Name

10th ACI/RILEM International Conference on Cementitious Materials and Alternative Binders for Sustainable Concrete, ICCM 2017 (2017: Oct. 2-4, Montreal, CA)

Department(s)

Civil, Architectural and Environmental Engineering

Keywords and Phrases

Binders; Bins; C (programming language); Compressive strength; Concrete beams and girders; Concretes; Electric conductivity; Fly ash; Hydrated lime; Hydration; Lime; Mixtures; Mortar; Sustainable development; Adiabatic temperature; High volume fly ash; HVFA-SCC; Hydration reaction; Performance rankings; Sustainable concretes; Sustainable materials; Transportation departments; Concrete mixtures; Performance ranking analysis approach; Sustainability

International Standard Book Number (ISBN)

978-1-945487-77-4

International Standard Serial Number (ISSN)

0193-2527

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2017 American Concrete Institute (ACI), All rights reserved.

Publication Date

01 Oct 2017

Link to Full Text

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