The Influence of Fly Ash Quality on RCC Performance

doi:10.3969/j.issn.1001-5485.2012.12.018

JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI ›› 2012, Vol. 29 ›› Issue (12): 88-93.DOI: 10.3969/j.issn.1001-5485.2012.12.018

• HYDRAULIC STRUCTURE AND MATERIAL • Previous Articles Next Articles

The Influence of Fly Ash Quality on RCC Performance

WANG Shu-yin^1,2, GUO Wen-kang^1,2, QIN Li-li^1,2

1.Material and Engineering Structure Department, Yangtze River Scientific Research Institute, Wuhan 430010, China; 2.Research Center of Water Engineering Safety and Disaster Prevention of MWR, Yangtze River Scientific Research Institute, Wuhan 430010, China

Received:2011-11-22 Revised:2012-01-05 Online:2012-12-01 Published:2012-12-18

Abstract

Abstract: In order to address the shortage of Grade-Ⅰ fly ash for roller compacted concrete (RCC) dam, the possibility of replacing Grade-Ⅰ fly ash with Grade-Ⅱ fly ash was explored. The physical and chemical properties of Grade-Ⅰ and Grade-Ⅱ fly ashes provided by several power plants were tested. Their performances were demonstrated and the proper dosage and other mix ratios were determined. The influences of various fly ashes on the compressive strength, tensile strength, ultimate tensile values, anti-freeze-thaw performance, the adiabatic temperature rise, impermeability and other properties of RCC were analyzed and compared. The mechanism of fly ash affecting the concrete properties were discussed. The principle of the rational use of fly ash for dam concrete was put forward.

Key words: fly ash, roller compacted concrete, ultimate tensile value, strength

CLC Number:

TU528.36

WANG Shu-Yin, GUO Wen-Kang, QIN Li-Li. The Influence of Fly Ash Quality on RCC Performance[J]. JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI, 2012, 29(12): 88-93.

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The Influence of Fly Ash Quality on RCC Performance

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