纤维增强硅粉高性能混凝土试验研究_《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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纤维增强硅粉高性能混凝土试验研究

Experimental Study on Fiber Reinforced High Performance Concrete with Silicon Powder

2022年第9期

钢纤维；硅粉；混凝土；工作性；力学性能；弯曲韧性

Steel fiber; Silicon powder; Concrete; Workability; Mechanical property; Bending toughness

2022年第9期

10.19761/j.1000-4637.2022.09.054.05

杨艳春1，张海红2，梁兴荣2

1.甘肃省交通投资管理有限公司，甘肃兰州 730030；2.甘肃省交通科学研究院集团有限公司，甘肃兰州 730000

杨艳春1，张海红2，梁兴荣2

杨艳春,张海红,梁兴荣.纤维增强硅粉高性能混凝土试验研究[J].混凝土与水泥制品,2022(9):54-57,61.

YANG Y C,ZHANG H H,LIANG X R.Experimental Study on Fiber Reinforced High Performance Concrete with Silicon Powder[J].China Concrete and Cement Products,2022(9):54-57,61.

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1000

摘要：研究了粉煤灰掺量（15%、20%、25%）、硅粉掺量（0、2%、4%、6%、8%）和钢纤维掺量（0、0.5%、1.0%、1.5%、2.0%）对混凝土工作性、力学性能和断裂性能的影响。结果表明：粉煤灰掺量越大，混凝土的工作性越好，力学性能先提升后降低，适宜掺量为20%；随着硅粉掺量的增加，混凝土的力学性能先提升后降低，当硅粉掺量为4%时，混凝土的抗压强度最高；钢纤维的掺入使新拌混凝土的工作性降低，但能有效延缓混凝土的受压破坏进程，提高混凝土的弯曲韧性，当钢纤维掺量为1.5%时，混凝土的断裂荷载达到最大。 Abstract： The effects of fly ash content(15%, 20%, 25%), silicon powder content(0、2%、4%、6%、8%) and steel fiber content（0, 0.5%, 1.0%, 1.5%, 2.0%） on the workability, mechanical properties and fracture properties of concrete were studied. The results show that the higher the content of fly ash, the better the workability of concrete, the mechanical properties first increase and then decrease, and the appropriate content is 20%. With the increase of silicon powder content, the mechanical properties of concrete increase first and then decrease, and when the silicon powder content is 4%, the compressive strength of concrete is the highest. The addition of steel fiber reduces the workability of fresh concrete, but it can effectively delay the compression failure process of concrete and improve the bending toughness of concrete. When the content of steel fiber is 1.5%, the fracture load of concrete reaches the maximum.

英文名 : Experimental Study on Fiber Reinforced High Performance Concrete with Silicon Powder

刊期 : 2022年第9期

关键词 : 钢纤维；硅粉；混凝土；工作性；力学性能；弯曲韧性

Key words : Steel fiber; Silicon powder; Concrete; Workability; Mechanical property; Bending toughness

刊期 : 2022年第9期

DOI : 10.19761/j.1000-4637.2022.09.054.05

文章编号 :

基金项目 :

作者 : 杨艳春1，张海红2，梁兴荣2

单位 : 1.甘肃省交通投资管理有限公司，甘肃兰州 730030；2.甘肃省交通科学研究院集团有限公司，甘肃兰州 730000

杨艳春1，张海红2，梁兴荣2

杨艳春,张海红,梁兴荣.纤维增强硅粉高性能混凝土试验研究[J].混凝土与水泥制品,2022(9):54-57,61.

YANG Y C,ZHANG H H,LIANG X R.Experimental Study on Fiber Reinforced High Performance Concrete with Silicon Powder[J].China Concrete and Cement Products,2022(9):54-57,61.

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摘要

参数

结论

参考文献

引用本文

Abstract： The effects of fly ash content(15%, 20%, 25%), silicon powder content(0、2%、4%、6%、8%) and steel fiber content（0, 0.5%, 1.0%, 1.5%, 2.0%） on the workability, mechanical properties and fracture properties of concrete were studied. The results show that the higher the content of fly ash, the better the workability of concrete, the mechanical properties first increase and then decrease, and the appropriate content is 20%. With the increase of silicon powder content, the mechanical properties of concrete increase first and then decrease, and when the silicon powder content is 4%, the compressive strength of concrete is the highest. The addition of steel fiber reduces the workability of fresh concrete, but it can effectively delay the compression failure process of concrete and improve the bending toughness of concrete. When the content of steel fiber is 1.5%, the fracture load of concrete reaches the maximum.

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