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Journal of Materials in Civil Engineering / Volume 15 / Issue 2 / TECHNICAL PAPERS

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High-Volume Fly Ash Concrete with High Strength and Low Drying Shrinkage

J. Mater. Civ. Eng. 15, 153 (2003); http://dx.doi.org/10.1061/(ASCE)0899-1561(2003)15:2(153) (4 pages)

Cengiz Duran Atiş

Assistant Professor, Cukurova Univ., Civil Engineering Dept., 01330 BalcalI/Adana, Turkey.

(Submitted 5 September 2001; accepted 24 April 2002)

In this work, a laboratory investigation was carried out to evaluate the strength and particularly the shrinkage properties of concrete containing high volumes of fly ash. The concrete mixtures made with 50 and 70% replacement (by mass) of ordinary portland cement (OPC) with fly ash were prepared. Water-cementitious material ratios ranged from 0.28 to 0.34. Some concrete mixtures were also made with superplasticizer. The strength and shrinkage properties of the concrete mixtures cured at 20°C temperature with 65% relative humidity are reported. The laboratory test results show that high-volume fly ash (HVFA) concrete attained satisfactory compressive and tensile strength at 1 day of age. It also showed that 50% replacement HVFA concrete developed higher strength than OPC concrete at 28 days and beyond. The inclusion of high volumes of fly ash in concrete with a low water-cementitious material ratio resulted in a reduction in the shrinkage values of up to 30% when compared to OPC concrete. The concrete mixtures made with superplasticizer showed higher shrinkage values of up to 50% when compared to the concrete made with no superplasticizer.

© 2003 American Society of Civil Engineers

KEYWORDS

ASCE SUBJECT HEADINGS

Fly ash, Shrinkage, Concrete, Strength

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ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1061/(ASCE)0899-1561(2003)15:2(153)

PUBLICATION DATA

ISSN

0899-1561 (print)  
1943-5533 (online)

Publisher

American Society of Civil Engineers

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