玻璃纤维织物增强海水海砂混凝土在模拟海洋环境中的耐久性研究

doi:10.11896/cldb.21020151

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Abstract In this work, the flexural behavior of glass fibertextile reinforced seawater sea-sand concrete (GTR-SWSSC) exposed to the simulated marine environment was studied. Four-point bending tests were carried out on GTR-SWSSC after different drying-wetting cycles and seawater immersion time, and the flexural performance of GTR-SWSSC was evaluated. At the same time, the improvement effect of epoxy resin on the resistance of GTR-SWSSC to seawater was investigated and analyzed from the microscopical level by scanning electron microscope (SEM). The results show that the bending properties of GTR-SWSSC conform to a certain regularity, and the exposure to seawater leads to the damage of the internal structure of the specimen, which makes the bending strength decrease. In general, the bending strength of the GTR-SWSSC exhibits a relatively slow decline trend in the harsh marine environment. Surface treatment with epoxy resin can effectively improve the bending strength and delay the decline of the mechanical properties of GTR-SWSSC, but the delaying effect is gradually weakened with the increase of the age after a certain period of time.

Key words： seawater sea-sand concrete alkali resistant glass fiber underwater zone tidal zone seawater immersion wetting and drying cycle bending performance durability

Published: 10 May 2022 Online: 2022-05-09

CLC number:

TU528

Fund:National Key R & D Program of China (2018YFC0705400) and National Natural Science Foundation of China (U1806225,51638008).

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	Articles by authors
	YU Song
	HU Xiang
	ZHAO Yifan
	ZHU Deju
	SHI Caijun

Cite this article:

YU Song,HU Xiang,ZHAO Yifan, et al. Research on Durability of Glass Fiber Textile Reinforced Seawater Sea-sand Concrete Exposed to Simulated Marine Environment[J]. Materials Reports, 2022, 36(9): 21020151-9.

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http://www.mater-rep.com/EN/10.11896/cldb.21020151 OR http://www.mater-rep.com/EN/Y2022/V36/I9/21020151

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