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High early strength concrete with 51% fly ash replacement



Title: High early strength concrete with 51% fly ash replacement
Author(s): Richard Szecsy
Paper category : conference
Book title: International RILEM Symposium on Concrete Science and Engineering: A Tribute to Arnon Bentur
Editor(s): J. Weiss, K. Kovler, J. Marchand, and S. Mindess
Print-ISBN: None
e-ISBN: 2912143926
Publisher: RILEM Publications SARL
Publication year: 2004
Language: English


Abstract: The use of high volume fly ash (HVFA) concrete and its relationship to green building and sustainable design has been steadily increasing over the last decade. Most of the information and case examples showcase construction projects that have the luxury of time, i.e. the project is willing to wait 3 days for initial set, or 10 days for stripping strength. In most cases, specifications call for 56-day strength instead of the standard 28-day strength. These results are largely based on what designers are willing to accept as performance limits on HVFA. Recent large-scale projects have proven that it is possible to generate high performance concrete results, 5 hour initial set times and 2-day stripping strengths, utilizing HVFA. The increasing demand for green construction and sustainable design projects, compounded by LEED® programs will only drive the demand for this type of material higher. An actual case example HVFA is included that showcases high performance results from the lab to the field and the challenges faced in combating myth, misconception, and resistance to HVFA as high performance concrete.


Online publication: 2004-03-25
Classification: Mixture Proportions and Case Studies
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143926.036