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Ultrasonic Testing Equivalent Transformation Technique of Fiber Reinforced High Strength Concrete

机译：超声波检测纤维增强高强度混凝土的等效变换技术

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According to the homogeneous assumption of material dispersed medium, one model named as equivalent sandwich layer model is proposed here for fiber reinforced high strength concrete. The speed of ultrasonic wave in fiber reinforced high strength concrete is transformed into the wave speed value in normal mortar equivalently. The ultrasonic testing technique for fiber reinforced high strength concrete is then constituted based on nowadays ultrasonic testing code. From the comparisons of strength between the model predictions and tests, it is shown that the ultrasonic testing method based on the sandwich layer model is feasible for fiber reinforced high strength concrete. This paper will be a model and method reference for the establishment of nondestructive testing technology for fiber reinforced high strength concrete structure.

机译：根据材料分散介质的均匀假设，提出了一种名为等效夹层层模型的模型，用于纤维增强的高强度混凝土。纤维增强高强度混凝土中超声波的速度等效地转化为正常砂浆的波速值。然后基于现在的超声波检测代码构成纤维增强高强度混凝土的超声波检测技术。从模型预测和测试之间的强度的比较来看，示出了基于夹层层模型的超声波检测方法是纤维增强高强度混凝土的可行性。本文将成为建立非破坏性高强度混凝土结构无损检测技术的模型和方法参考。

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《NDE/NDT for Highways and Bridges》|2010年||共5页
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作者
Wu Xiangguo; Zhao Xinyu; Han Sangmook;
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中图分类 TG115.28-53;
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1. Non-destructive testing of ultra high performance fibre reinforced concrete (UHPFRC): A feasibility study for using ultrasonic and resonant frequency testing techniques [J] . A.M.T. Hassan, S.W.Jones Construction and Building Materials . 2012,第期

机译：超高性能纤维混凝土（UHPFRC）的无损检测：使用超声波和共振频率检测技术的可行性研究
2. Fiber-reinforced concrete incorporating locally available natural fibers in normal- and high-strength concrete and a performance analysis with steel fiber-reinforced composite concrete [J] . Islam S.M., Hussain R.R., Morshed M.A.Z. Journal of Composite Materials . 2012,第1期

机译：纤维增强混凝土，在普通和高强度混凝土中掺入了本地可用的天然纤维，并采用钢纤维增强复合混凝土进行了性能分析
3. Using grooving and corner strip-batten techniques for seismic strengthening of square reinforced concrete columns with fiber-reinforced polymer composites [J] . Alireza Saljoughian, Davood Mostofinejad Structural concrete . 2020,第5期

机译：采用纤维增强聚合物复合材料的方形钢筋混凝土柱地震加固的开槽和拐角条带 - 剥离技术
4. Ultrasonic Testing Equivalent Transformation Technique of Fiber Reinforced High Strength Concrete [C] . Wu Xiangguo, Zhao Xinyu, Han Sangmook NDE/NDT for Highways and Bridges . 2010

机译：超声波检测纤维增强高强度混凝土的等效变换技术
5. A Standard Tensile Testing Procedure for Fiber-Reinforced Concrete (FRC) and Ultra-High-Performance Fiber-Reinforced Concrete (UHP-FRC) Based on Double Punch Test (DPT) [D] . Tuladhar, Shuveksha 2017

机译：基于双冲压试验（DPT）的纤维混凝土（FRC）和超高性能纤维混凝土（UHP-FRC）的标准拉伸试验程序
6. Mechanical Property Tests and Strength Formulas of Basalt Fiber Reinforced Recycled Aggregate Concrete [O] . Sheng-En Fang, Hua-Shan Hong, Pei-Hui Zhang 2018

机译：玄武岩纤维再生骨料混凝土力学性能测试及强度公式
7. Mechanical properties of various concrete after high temperature exposure Mechanical property of various types of concrete after high temperature exposure is investigated. Considering compressive strength requirement for a vertical element in high rise building, concrete specimens with various design strengths of 35, 80, 100, and 150 MPa were tested. Particularly, the influence of incorporated steel fiber on fire resistance is of interest in this study. Experimental results show that the fire resistance depends on the design strength and steel fiber content. Normal strength concrete (NSC) of a design strength of 35 MPa or high performance concrete (HPC) of 80-100 MPa does not spall when exposed to 100-400 °C of temperature. However, an explosive spalling occurs at 300 °C when the HPCs contain 1 vol. of steel fiber. Ultra-high performance concrete (UHPC) of a design strength of 150 MPa and 1.5 vol. of steel fiber also shows dramatic spalling at 300 °C. The experimental results found in this study can contribute to a better understanding of the behaviors of HPC and UHPC under fire and the role of steel fiber on the fire resistance. [O] . 2017

机译：研究了高温暴露后各种混凝土高温曝光机械性能各种混凝土的机械性能。考虑到高层建筑中垂直元件的抗压强度要求，测试了35,80,100和150MPa各种设计强度的混凝土试样。特别是，在这项研究中，掺入钢纤维对耐火性的影响。实验结果表明，耐火性取决于设计强度和钢纤维含量。在暴露于100-400°C的温度时，80-100MPa的设计强度为35MPa或高性能混凝土（HPC）的正常强度混凝土（NSC）不会击落。然而，当HPC含有1体积的钢纤维的百分比时，爆炸性剥落发生在300℃。超高性能混凝土（UHPC）的设计强度为150 MPa和1.5 Vol。钢纤维的百分比也显示出300℃的剧烈剥落。本研究中发现的实验结果可以有助于更好地了解在火灾中的HPC和UHPC的行为以及钢纤维对耐火性的作用。
8. Mechanical Behavior of High Performance Concretes. Volume 6. High Early StrengthFiber Reinforced Concrete [R] . Naaman, A. E., Alkhairi, F. M., Hammoud, H. 1993

机译：高性能混凝土的力学行为。第6卷。高早强纤维钢筋混凝土

Ultrasonic Testing Equivalent Transformation Technique of Fiber Reinforced High Strength Concrete

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