THE EXPERIMENT STUDY ON FROST RESISTANCE DURABILITY OF POLYPROPYLENE FIBER REINFORCED LIGHTWEIGHT AGGREGATE CONCRETE

Huo Junfang; Shen Xiangdong

doi:10.13204/j.gyjz200903024

Volume 39 Issue 3

Dec. 2014

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Huo Junfang, Shen Xiangdong. THE EXPERIMENT STUDY ON FROST RESISTANCE DURABILITY OF POLYPROPYLENE FIBER REINFORCED LIGHTWEIGHT AGGREGATE CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(3): 86-89. doi: 10.13204/j.gyjz200903024

Citation:

Huo Junfang, Shen Xiangdong. THE EXPERIMENT STUDY ON FROST RESISTANCE DURABILITY OF POLYPROPYLENE FIBER REINFORCED LIGHTWEIGHT AGGREGATE CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(3): 86-89. doi: 10.13204/j.gyjz200903024

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THE EXPERIMENT STUDY ON FROST RESISTANCE DURABILITY OF POLYPROPYLENE FIBER REINFORCED LIGHTWEIGHT AGGREGATE CONCRETE

doi: 10.13204/j.gyjz200903024

Huo Junfang¹,
Shen Xiangdong²

1.
1. Inner Mongolia University of Technology,Huhhot 010051,China;
2.
2. Inner Mongolia Agriculture University,Huhhot 010018,China

Received Date: 2007-12-15
Publish Date: 2009-03-20

Abstract

Abstract

Pumice lightweight aggregate concrete (LWAC) of LC30, LC35 is prepared with the method of mixing polypropylene fiber, superplasticizer, air?? entraining agent and mineral admixtures. Comparing frost resistance durability of LWAC in salt solution ( 5% Na2SO4) and in water, the degree of LWAC durability deterioration is: freezing??thawing in salt solution freezing??thawing in water. The frost resistance of LWAC is improved by mixing polypropylene fiber. The large volume fraction has tendency of good frost resistance of LWAC. SEM shows that hydrate structure in interfacial transition zone (ITZ) becomes loose gradually with an increase in cycles of freezing thawing and corrosion. Polypropylene fiber has stronger cementing bond with paste and can restraint the damage to concrete by freezing??thawing.
- pumice,
- polypropylene fiber,
- lightweight aggregate concrete,
- forst resistance durability,
- microstructure

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References(7)

References

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