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http://dx.doi.org/10.5389/KSAE.2006.48.4.023

Flowability of High Flowable Concrete with Fly Ash and Lime Powder  

Cho Il-Ho (충남대학교 대학원)
Sung Chan-Yong (충남대학교 농업생명과학대학)
Publication Information
Journal of The Korean Society of Agricultural Engineers / v.48, no.4, 2006 , pp. 23-30 More about this Journal
Abstract
This study is performed to evaluate flowability of high flowable concrete using ordinary portland cement, crushed coarse aggregate, crushed sand, sea sand, fly ash, lime powder and superplasticizer. The slump flow and air content are increased with increasing the content of lime powder. But, the O-type funneling time and Box-type passing are decreased with increasing the content of lime powder. The slump flow, air content, O-type funneling time, Box-type passing and L-type filling of target compressive strength 21-27 MPa and 35-42 MPa at curing age 28 days are 47-50 cm and 56-60 cm, 4.2-5.5% and 4.0-5.7%, 8-12s and 5-10s, 4.3-5.0 cm and 3.4-5.0 cm, and excellent, respectively. These concrete can be used for high flowable concrete.
Keywords
High flowable concrete; Slump flow; Air content; O-type funneling time; Box-type passing; L-type filling;
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