不同PVA纤维增强水泥基复合材料性能试验研究

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发布时间：2020-01-06 00:00:00

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不同PVA纤维增强水泥基复合材料性能试验研究

Experimental Study on Properties of Different PVA Fiber Reinforced Cementitious Composites

2023年第2期

PVA纤维；工程水泥基复合材料；应变硬化；极限拉应变

PVA fiber; Engineering cementitious composites(ECC); Strain hardening; Ultimate tensile strain

2023年第2期

10.19761/j.1000-4637.2023.02.055.05

中国水科院基本科研业务费项目（SM0145B022021）。

刘军宏1，郑银林2,3，马锋玲2，刘艳霞2，王利娜2

1.中国水电建设集团十五工程局有限公司国际工程公司，陕西西安 710068；2.中国水利水电科学研究院材料研究所，北京 100038；3.水发集团有限公司，山东济南 250000

刘军宏1，郑银林2,3，马锋玲2，刘艳霞2，王利娜2

刘军宏,郑银林,马锋玲,等.不同PVA纤维增强水泥基复合材料性能试验研究[J].混凝土与水泥制品,2023(2):55-59.

LIU J H,ZHENG Y L,MA F L,et al.Experimental Study on Properties of Different PVA Fiber Reinforced Cementitious Composites[J].China Concrete and Cement Products,2023(2):55-59.

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摘要：对比研究了日本PVA纤维（J-PVA纤维）和国产PVA纤维（C-PVA、S-PVA纤维）对工程水泥基复合材料（ECC）性能影响的差异。结果表明：在纤维体积掺量为2.0%的条件下，掺J-PVA纤维的ECC能够完全实现多点开裂，应变硬化特征显著，28 d极限拉应变在3.7%以上；掺C-PVA纤维ECC的28 d极限拉应变在2.1%以上，增韧效果良好，且具有明显的价格优势，在实际工程应用中具有较强的竞争力；S-PVA纤维对ECC性能的改善效果不如J-PVA纤维和C-PVA纤维，工程应用中应注意优选甄别。 Abstract: The effects of Japanese PVA fiber(J-PVA fiber) and domestic PVA fiber(C-PVA、S-PVA fiber) on engineering cementitious composites(ECC) properties were compared. The results show that when the fiber volume fraction is 2.0%, the ECC mixed with J-PVA fiber can fully realize multi-point cracking, and the strain hardening characteristics are significant, and the 28 d ultimate tensile strain is above 3.7%. The 28 d ultimate tensile strain of ECC mixed with C-PVA fiber is more than 2.1%, which shows that the toughening effect is good, and it has obvious price advantage, and has strong competitiveness in practical engineering applications. The improvement effect of S-PVA fiber on ECC performance is not as good as that of J-PVA fiber and C-PVA fiber, and the attention should be paid to the selection and discrimination in engineering application.

英文名 : Experimental Study on Properties of Different PVA Fiber Reinforced Cementitious Composites

刊期 : 2023年第2期

关键词 : PVA纤维；工程水泥基复合材料；应变硬化；极限拉应变

Key words : PVA fiber; Engineering cementitious composites(ECC); Strain hardening; Ultimate tensile strain

刊期 : 2023年第2期

DOI : 10.19761/j.1000-4637.2023.02.055.05

文章编号 :

基金项目 : 中国水科院基本科研业务费项目（SM0145B022021）。

作者 : 刘军宏1，郑银林2,3，马锋玲2，刘艳霞2，王利娜2

单位 : 1.中国水电建设集团十五工程局有限公司国际工程公司，陕西西安 710068；2.中国水利水电科学研究院材料研究所，北京 100038；3.水发集团有限公司，山东济南 250000

刘军宏1，郑银林2,3，马锋玲2，刘艳霞2，王利娜2

刘军宏,郑银林,马锋玲,等.不同PVA纤维增强水泥基复合材料性能试验研究[J].混凝土与水泥制品,2023(2):55-59.

LIU J H,ZHENG Y L,MA F L,et al.Experimental Study on Properties of Different PVA Fiber Reinforced Cementitious Composites[J].China Concrete and Cement Products,2023(2):55-59.

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参考文献

引用本文

Abstract: The effects of Japanese PVA fiber(J-PVA fiber) and domestic PVA fiber(C-PVA、S-PVA fiber) on engineering cementitious composites(ECC) properties were compared. The results show that when the fiber volume fraction is 2.0%, the ECC mixed with J-PVA fiber can fully realize multi-point cracking, and the strain hardening characteristics are significant, and the 28 d ultimate tensile strain is above 3.7%. The 28 d ultimate tensile strain of ECC mixed with C-PVA fiber is more than 2.1%, which shows that the toughening effect is good, and it has obvious price advantage, and has strong competitiveness in practical engineering applications. The improvement effect of S-PVA fiber on ECC performance is not as good as that of J-PVA fiber and C-PVA fiber, and the attention should be paid to the selection and discrimination in engineering application.

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不同PVA纤维增强水泥基复合材料性能试验研究

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