Studies the Properties of Polyaspartic Polyurea Coated Concrete under Coaction of Salt Fog and Freeze-Thaw

Ping Lu; Xin Mao Li; Xue Qiang Ma; Wei Bo Huang

doi:10.4028/www.scientific.net/AMR.455-456.781

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 455-456Studies the Properties of Polyaspartic Polyurea...

Studies the Properties of Polyaspartic Polyurea Coated Concrete under Coaction of Salt Fog and Freeze-Thaw

Abstract:

. This paper mainly studied the properties of PAE polyurea coated concrete under coactions of salt fog and freeze-thaw. After exposed salt fog conditions for 200d, T3, B2, F2 and TM four coated concrete relative dynamic elastic modulus have small changes, but different coated concrete variation amplitude is different. T3 coated concrete after 100 times of freeze-thaw cycle the relative dynamic elastic modulus began to drop, 200 times freeze-thaw cycle ends, relative dynamic elastic modulus variation is the largest, decrease rate is 95%, TM concrete during 200 times freeze-thaw cycle, relative dynamic elastic modulus almost no change, B2 concrete and F2 concrete the extent of change between coating T3 and TM. After 300 times the freeze-thaw cycle coated concrete didn't appear freeze-thaw damage phenomenon. Four kinds of coating concrete relative dynamic elastic modulus variation by large to small order: T3 coated concrete > B2 coated concrete >F2 coated concrete > TM coated concrete, concrete with the same 200d rule. Frost resistance order, by contrast, TM coated concrete > B2 coated concrete > F2 coated concrete > T3 coated concrete.

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Periodical:

Advanced Materials Research (Volumes 455-456)

Pages:

781-785

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.455-456.781

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Online since:

January 2012

Authors:

Ping Lu, Xin Mao Li, Xue Qiang Ma, Wei Bo Huang

Keywords:

Coated Concrete, Dynamic Elastic Modulus, Freeze-Thaw Cycle, PAE Polyurea Coatings, Salt Fog of Aging

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