混杂钢纤维对高强再生混凝土基本力学性能的影响
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摘要
为研究混杂钢纤维对高强再生混凝土基本力学性能的影响,通过改变钢纤维的不同掺合方式,进行了抗压强度、劈拉强度、弹性模量等的试验。结果表明,在高强再生混凝土中掺入钢纤维对于抗压强度影响不大,却可以显著提高劈裂抗拉强度,同时能够显著提高拉压比及弹强比。其中当混掺钢纤维BC时,能够显著提高高强再生混凝土的韧性。
In order to study the effect of hybrid steel fibers on the basic mechanical properties of high strength recycled concrete,the compressive strength,splitting tensile strength and elastic modulus were tested by changing the different mixing modes of steel fibers. The results show that the addition of steel fibers in high strength recycled concrete has little effect on the compressive strength,but can significantly improve the splitting tensile strength,as well as the tension-compression ratio and elastic strength ratio. When steel fiber BC is mixed,the toughness of high strength recycled concrete can be significantly improved.
In order to study the effect of hybrid steel fibers on the basic mechanical properties of high strength recycled concrete,the compressive strength,splitting tensile strength and elastic modulus were tested by changing the different mixing modes of steel fibers. The results show that the addition of steel fibers in high strength recycled concrete has little effect on the compressive strength,but can significantly improve the splitting tensile strength,as well as the tension-compression ratio and elastic strength ratio. When steel fiber BC is mixed,the toughness of high strength recycled concrete can be significantly improved.
引文
[1]章文姣,鲍成成,孔祥清.混杂纤维掺量对再生混凝土力学性能的影响研究[J].科学技术与工程,2016,16(13):106-112,123.
[2]陈明月,裴长春.仿钢及玄武岩纤维不同组合对再生混凝土基本力学性能影响[J].山西建筑,2018,44(14):117-119.
[3]李晓克,霍洪媛,张亮.混杂钢纤维增强混凝土力学性能试验研究[J].河南大学学报(自然科学版),2017,47(1):101-107.
[4]范存园.混杂钢纤维混凝土力学性能研究[D].郑州:郑州大学,2017.
[5]张丽娟,高丹盈,朱海堂,等.钢纤维再生混凝土劈拉强度试验研究[J].华北水利水电学院学报,2013,34(1):27-31.
[2]陈明月,裴长春.仿钢及玄武岩纤维不同组合对再生混凝土基本力学性能影响[J].山西建筑,2018,44(14):117-119.
[3]李晓克,霍洪媛,张亮.混杂钢纤维增强混凝土力学性能试验研究[J].河南大学学报(自然科学版),2017,47(1):101-107.
[4]范存园.混杂钢纤维混凝土力学性能研究[D].郑州:郑州大学,2017.
[5]张丽娟,高丹盈,朱海堂,等.钢纤维再生混凝土劈拉强度试验研究[J].华北水利水电学院学报,2013,34(1):27-31.