High-Volume Fly Ash Concrete: Analysis and Application

Autor:	Mark Reiner, Kevin L. Rens
Rok vydání:	2006
Předmět:	Cement Engineering Waste management business.industry Fossil fuel Building and Construction law.invention Cost reduction Portland cement Arts and Humanities (miscellaneous) law Girder Precast concrete Fly ash Capital cost business Civil and Structural Engineering
Zdroj:	Practice Periodical on Structural Design and Construction. 11:58-64
ISSN:	1943-5576 1084-0680
DOI:	10.1061/(asce)1084-0680(2006)11:1(58)
Popis:	Although fly ash as a partial replacement for cement has been utilized for many years, it has been almost exclusively used in low-volume percentages, such as 10 or 20% cement replacement. This paper looks at high-volume percentage replacements from 40 to 70%. A minimix study revealed that 50 and 60% cement replacement percentages were the best candidates for full-scale testing. The environmental benefits included a 25% reduction in smog, human health effects, and fossil fuel use compared to the same element built with a 100% Portland cement mix. The economic benefits included a 15% capital cost reduction and a 20% life-cycle cost reduction when compared with a 100% Portland cement mix. Full-scale testing included a complete mix design in addition to the construction of four concrete infrastructure products. The products built included an alley panel and curb, and gutter sections in the City and County of Denver, a precast manhole and lid, and a twin-tee prestressed girder.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d383744989dda62fa54461b362ad9279 https://doi.org/10.1061/(asce)1084-0680(2006)11:1(58) Zobrazit plný text záznamu