Effects of Change in Fineness of Fly Ash on Air-Entrained Concrete

Abstract:

In order to make clear of the effects of the change in fineness of fly ash on air-entrained concrete, 2 series of laboratory experiments were carried out using 6 kinds fly ash with the specific surface area in the range from 2500 to 4400cm2/g. The test results indicated higher slump and lower air-entraining content and higher dosage of air-entraining agent for fly ash with higher specific surface area. Compressive strength was found to increase with the increases of specific surface area of fly ash, while drying shrinkage and carbonation were found to show different tendency with change in fineness of fly ash.

• Periodical: Advanced Materials Research (Volumes 168-170)
• Pages: 2195-2199
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.168-170.2195
• Online since: December 2010
• Authors: Hong Zhu Quan, Hideo Kasami
• Keywords: Air-Entraining Content, Compressive Strength, Fly Ash (FA), Specific Surface Area

References

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[2] Japanese Industrial Standard, JIS A 6201-2008, Fly Ash for Use Concrete (in Japanese).

[3] M. hisaka, T. Mano and M. shiraiwa: Study on the effect of coal ash on the air-entraining properties of concrete, Transaction of Cement and Concrete, No. 51, pp.132-137, 1997 (in Japanese).