高温下钢纤维陶瓷骨料混凝土的劈裂抗拉性能研究

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发布时间：2020-01-06 00:00:00

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高温下钢纤维陶瓷骨料混凝土的劈裂抗拉性能研究

Study on Splitting Tensile Properties of Steel Fiber Reinforced Ceramic Aggregate Concrete at High Temperature

2023年第3期

高温；加载率；陶瓷骨料；钢纤维；混凝土；劈裂抗拉强度

High temperature; Loading rate; Ceramic aggregate; Steel fiber; Concrete; Splitting tensile strength

2023年第3期

10.19761/j.1000-4637.2023.03.051.05

刘洋帆，陶俊林

西南科技大学土木工程与建筑学院，四川绵阳 621010

刘洋帆，陶俊林

刘洋帆,陶俊林.高温下钢纤维陶瓷骨料混凝土的劈裂抗拉性能研究[J].混凝土与水泥制品,2023(3):51-55.

LIU Y F,TAO J L.Study on Splitting Tensile Properties of Steel Fiber Reinforced Ceramic Aggregate Concrete at High Temperature[J].China Concrete and Cement Products,2023(3):51-55.

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摘要：研究了温度(20、170、220、270、320、500、750、1 000 ℃)和加载率（0.5 kN/s、5.0 kN/s）对普通混凝土和钢纤维陶瓷骨料混凝土劈裂抗拉性能的影响。结果表明：高温下普通混凝土与钢纤维陶瓷骨料混凝土的劈裂抗拉强度均存在加载率强化效应；普通混凝土的劈裂抗拉强度在20~1 000 ℃内总体表现为温度软化效应，其中，在170~220 ℃内以温度强化效应为主；钢纤维陶瓷骨料混凝土的劈裂抗拉强度表现出明显的温度软化效应；各温度下，钢纤维陶瓷骨料混凝土的的劈裂抗拉强度均高于普通混凝土，表现出良好的耐高温性能。 Abstract: The effects of temperatures (20, 170, 220, 270, 320, 500, 750, 1 000 ℃) and loading rates (0.5 kN/s, 5.0 kN/s) on the splitting tensile properties of ordinary concrete and steel fiber reinforced ceramic aggregate concrete were studied. The results show that the splitting tensile strength of ordinary concrete and steel fiber reinforced ceramic aggregate concrete under high temperature is strengthened by loading rate. The splitting tensile strength of ordinary concrete generally shows the temperature softening effect at 20~1 000 ℃, and the temperature strengthening effect is dominant at 170~220 ℃. The splitting tensile strength of steel fiber reinforced ceramic aggregate concrete shows obvious temperature softening effect. At all temperatures, the splitting tensile strength of steel fiber reinforced ceramic aggregate concrete is higher than that of ordinary concrete, showing good high temperature resistance.

英文名 : Study on Splitting Tensile Properties of Steel Fiber Reinforced Ceramic Aggregate Concrete at High Temperature

刊期 : 2023年第3期

关键词 : 高温；加载率；陶瓷骨料；钢纤维；混凝土；劈裂抗拉强度

Key words : High temperature; Loading rate; Ceramic aggregate; Steel fiber; Concrete; Splitting tensile strength

刊期 : 2023年第3期

DOI : 10.19761/j.1000-4637.2023.03.051.05

文章编号 :

基金项目 :

作者 : 刘洋帆，陶俊林

单位 : 西南科技大学土木工程与建筑学院，四川绵阳 621010

刘洋帆，陶俊林

刘洋帆,陶俊林.高温下钢纤维陶瓷骨料混凝土的劈裂抗拉性能研究[J].混凝土与水泥制品,2023(3):51-55.

LIU Y F,TAO J L.Study on Splitting Tensile Properties of Steel Fiber Reinforced Ceramic Aggregate Concrete at High Temperature[J].China Concrete and Cement Products,2023(3):51-55.

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摘要

参数

结论

参考文献

引用本文

Abstract: The effects of temperatures (20, 170, 220, 270, 320, 500, 750, 1 000 ℃) and loading rates (0.5 kN/s, 5.0 kN/s) on the splitting tensile properties of ordinary concrete and steel fiber reinforced ceramic aggregate concrete were studied. The results show that the splitting tensile strength of ordinary concrete and steel fiber reinforced ceramic aggregate concrete under high temperature is strengthened by loading rate. The splitting tensile strength of ordinary concrete generally shows the temperature softening effect at 20~1 000 ℃, and the temperature strengthening effect is dominant at 170~220 ℃. The splitting tensile strength of steel fiber reinforced ceramic aggregate concrete shows obvious temperature softening effect. At all temperatures, the splitting tensile strength of steel fiber reinforced ceramic aggregate concrete is higher than that of ordinary concrete, showing good high temperature resistance.

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高温下钢纤维陶瓷骨料混凝土的劈裂抗拉性能研究

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