聚乙烯醇纤维对碱矿渣泡沫混凝土性能的影响

doi:10.11896/j.issn.1005-023X.2018.12.029

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Abstract Alkali activated slag (AAS) foam concrete with dry density of 350 kg/m³ was prepared with water glass activated slag cement. To increase the toughness and decrease the drying shrinkage of AAS foam concrete, the effect of polyvinyl alcohol (PVA) fiber content on the dry density, strength, water absorption and drying shrinkage of AAS foam concrete were tested in this paper. The results indicated that PVA fiber had little influence on the dry density of AAS foam concrete. When the PVA fiber content ranged between 0.6—1.2 kg/m³, it increased the flexural strength and flexural-compressive ratio of AAS foam concrete,which mean the toughness of AAS foam concrete increased. Adding PVA fiber decreased the water absorption rate of AAS foam concrete. When the PVA fiber content was higher than 0.6 kg/m³, the drying shrinkage of AAS foam concrete decreased with the increase of fiber content. Considering the properties of AAS foam concrete and economic efficiency in this research condition, the optimal content of PVA fiber in AAS foam concrete was 0.6 kg/m³.

Key words： alkali activated slag foam concrete polyvinyl alcohol fiber strength drying shrinkage

Published: 20 July 2018

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TU52

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	Articles by authors
	BAI Guang
	TIAN Yi
	YU Linwen
	WANG Lei

Cite this article:

BAI Guang,TIAN Yi,YU Linwen, et al. Effect of PVA Fiber on the Properties of Alkali Activated Slag Foam Concrete[J]. Materials Reports, 2018, 32(12): 2096-2099.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.12.029 OR http://www.mater-rep.com/EN/Y2018/V32/I12/2096

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