PVA-钢纤维自密实混凝土早期干燥收缩研究_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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PVA-钢纤维自密实混凝土早期干燥收缩研究

Study on early-age drying shrinkage of PVA-steel fiber reinforced self- compacting concrete

2024年第6期

PVA纤维；钢纤维；混杂纤维；自密实混凝土；干燥收缩

PVA fiber; Steel fiber; Hybrid fiber; Self-compacting concrete; Drying shrinkage

2024年第6期

10.19761/j.1000-4637.2024.06.055.05

国家自然科学基金项目（51969019）。

余建杰1，翟嘉欣2，*，郑琪1，董建军1

1.南昌航空大学土木建筑学院，江西南昌 330063；2.中国电建集团江西省电力建设有限公司，江西南昌330001

余建杰1，翟嘉欣2，*，郑琪1，董建军1

余建杰,翟嘉欣,郑琪,等.PVA-钢纤维自密实混凝土早期干燥收缩研究[J].混凝土与水泥制品,2024(6):55-58,63.

YU J J,ZHAI J X,ZHENG Q,et al.Study on early-age drying shrinkage of PVA-steel fiber reinforced self-compacting concrete[J].China Concrete and Cement Products,2024(6):55-58,63.

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摘要：研究了钢纤维、PVA纤维、PVA-钢混杂纤维对自密实混凝土早期干燥收缩的影响。结果表明：纤维的掺入不会改变自密实混凝土干燥收缩的发展趋势；单掺钢纤维或PVA纤维均能抑制自密实混凝土的干燥收缩，其中，PVA纤维较钢纤维对自密实混凝土干燥收缩的抑制效果更好，但纤维体积掺量过高则会导致纤维的抑制效果减弱；PVA-钢混杂纤维对自密实混凝土干燥收缩的改善效果优于单一纤维，其中，0.3%体积掺量的钢纤维与0.06%体积掺量的PVA纤维混杂对自密实混凝土干燥收缩的改善效果相对最好，表现出显著的混杂效应。 Abstract: The effects of steel fiber, PVA fiber and PVA-steel hybrid fiber on the early-age drying shrinkage of self-compacting concrete were studied. The results show that the incorporation of fiber will not change the trend of drying shrinkage of self-compacting concrete. The drying shrinkage of self-compacting concrete can be inhibited by mixing steel fiber or PVA fiber. Among which, PVA fiber has a better inhibition effect on the drying shrinkage of self-compacting concrete than that of steel fiber, but the inhibition effect of fiber is weakened by too much fiber volume content. The improved effect of PVA-steel hybrid fiber on drying shrinkage of self-compacting concrete is better than that of single fiber. Among which, mixing 0.3% volume content of steel fiber and 0.06% volume content of PVA fiber shows relatively the best improvement on drying shrinkage of self-compacting concrete, showing a significant hybrid effect.

英文名 : Study on early-age drying shrinkage of PVA-steel fiber reinforced self- compacting concrete

刊期 : 2024年第6期

关键词 : PVA纤维；钢纤维；混杂纤维；自密实混凝土；干燥收缩

Key words : PVA fiber; Steel fiber; Hybrid fiber; Self-compacting concrete; Drying shrinkage

刊期 : 2024年第6期

DOI : 10.19761/j.1000-4637.2024.06.055.05

文章编号 :

基金项目 : 国家自然科学基金项目（51969019）。

作者 : 余建杰1，翟嘉欣2，*，郑琪1，董建军1

单位 : 1.南昌航空大学土木建筑学院，江西南昌 330063；2.中国电建集团江西省电力建设有限公司，江西南昌330001

余建杰1，翟嘉欣2，*，郑琪1，董建军1

余建杰,翟嘉欣,郑琪,等.PVA-钢纤维自密实混凝土早期干燥收缩研究[J].混凝土与水泥制品,2024(6):55-58,63.

YU J J,ZHAI J X,ZHENG Q,et al.Study on early-age drying shrinkage of PVA-steel fiber reinforced self-compacting concrete[J].China Concrete and Cement Products,2024(6):55-58,63.

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结论

参考文献

引用本文

Abstract: The effects of steel fiber, PVA fiber and PVA-steel hybrid fiber on the early-age drying shrinkage of self-compacting concrete were studied. The results show that the incorporation of fiber will not change the trend of drying shrinkage of self-compacting concrete. The drying shrinkage of self-compacting concrete can be inhibited by mixing steel fiber or PVA fiber. Among which, PVA fiber has a better inhibition effect on the drying shrinkage of self-compacting concrete than that of steel fiber, but the inhibition effect of fiber is weakened by too much fiber volume content. The improved effect of PVA-steel hybrid fiber on drying shrinkage of self-compacting concrete is better than that of single fiber. Among which, mixing 0.3% volume content of steel fiber and 0.06% volume content of PVA fiber shows relatively the best improvement on drying shrinkage of self-compacting concrete, showing a significant hybrid effect.

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