Fly Ash-Desulfurization Gypsum Mortar and Concrete Part II: Performances

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Abstract:

FA-FGD mortar and concrete were manufactured and tested the main performances. With WFA-FGD taking 80~85% of the total composite binder by mass, mortar used in buildings was provided with good workability, enough mechanical properties specified for masonry in China, low drying shrinkage and strong sulfate corrosion, which was suitable for plastering or coating inside and outside walls. With LFA-FGD more than 30% in proportion, middle-strength concrete showed satisfactory workability with no segregation, no bleeding and low slump loss, stable strength development and low brittleness, about 60% of the domestic standard limit of wear mass loss in the specified test, good impermeability as well as excellent cracking resistance.

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Periodical:

Advanced Materials Research (Volumes 243-249)

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6880-6886

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May 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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[1] GUO Da-jiang, YUAN Yun-fa, HU Hao-ran, ZHANG Bing. Influence of FGD Gypsum on the Properties of Portland Cement (in Chinese), Bulletin of the Chinese Ceramic Society, No.2, 2010, 22~26

Google Scholar

[2] GAO Ying-li. Investigation of earlyshrinkage and cracking resistance of high performance highway pavement cement concrete containing ultra-fine fly ash (in Chinses). PhD thesis of Central South University, (2005)

Google Scholar

[3] SHI Hui-sheng, LIU Hong-yan. Resource recovery of flue gas desulphurization gypsumin slag cement[J]. Journal of Tongji University (Natural Science), 2008(01):16~21

Google Scholar

[4] GAO Ying-li, CHEN Yu; WANG Di, et al. Design and hydration characteristics of desulphurization gypsum-fly ash active admixture (in Chinese). Journal of Sichuan University (Engineering Science Edition), 2010, 42(02):225~231

Google Scholar

[5] WANG Di, ZHU Meng-liang, CHEN Yu, et al. Study on composite cementitious material produced by desulphurization gypsum-fly ash (in Chinese). Fly Ash Comprehensive Utilization, 2009(05):7~10

Google Scholar

[6] Wang, L., Jin, Y., Nie, Y. , Li, R. Recycling of municipal solid waste incineration fly ash for ordinary Portland cement production: A real-scale testResources. Conservation & Recycling, No.12, vol.54, 2010, 1428~1435

DOI: 10.1016/j.resconrec.2010.06.006

Google Scholar

[7] Wang, X.Y. , Lee, H.S. , Modeling the hydration of concrete incorporating fly ash or slag. Cement and Concrete Research, No.7, Vol.40, 2010, 984~996

DOI: 10.1016/j.cemconres.2010.03.001

Google Scholar

[8] Qiao, X.C. , Poon, C.S. , Cheeseman, C. Use of flue gas desulphurisation (FGD) waste and rejected fly ash in waste stabilization/solidification systems. Waste Management, No.2, Vol.26, 2006, 141~149

DOI: 10.1016/j.wasman.2005.02.020

Google Scholar