In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
ACI World Headquarters
38800 Country Club Dr.
Farmington Hills, MI
ACI Middle East Regional Office
Second Floor, Office # 02.01/07
The Offices 02 Building, One Central
Dubai World Trade Center Complex
Phone: +971.4.516.3208 & 3209
Chat with Us Online Now
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: An Innovative Approach to Fly Ash Characterization and Evaluation to Prevent Alkali-Silica Reaction
Author(s): Anol K. Mukhopadhyay, Kai-Wei Liu, and Mostafa Jalal
Publication: Materials Journal
Appears on pages(s): 173-181
Keywords: accelerated concrete cylinder test (ACCT); advanced characterization; alkali silica reaction (ASR); emerging test methods; fly ash; pozzolans; quantitative X-ray diffraction (QXRD)
Abstract:The main objective of this study was to conduct a full-scale characterization of different types of fly ashes using conventional as well as advanced techniques and evaluating their effectiveness to prevent alkali-silica reaction (ASR) using an emerging accelerated concrete cylinder test (ACCT). The full-scale characterization of fly ashes involves evaluation of type and content of crystalline phases and amorphous content by quantitative X-ray diffraction (QXRD), soluble available alkalis (ASTM C311), and pore solution chemistry along with determination of parameters by the conventional ASTM C618. A favorable comparison between characteristic chemical and mineralogical parameters of the fly ashes and ACCT-based ASR performance prediction was observed. This combined innovative approach was found to be effective to test the effectiveness (optimization) of different types of fly ashes to prevent ASR in a rapid (within 75 days) and reliable manner and formulate case-specific, performance-based, ASR-resistant concrete mixtures using locally available fly ashes.
Click here to become an online Journal subscriber