Mechanical and fatigue performance of rubber concrete

Feng Liu; Wanhu Zheng; Lijuan Li; Wenxian Feng; Guofang Ning

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Mechanical and fatigue performance of rubber concrete

机译：橡胶混凝土的机械和疲劳性能

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摘要

This study determines the mechanical and fatigue performance of rubber concrete, which consists of 0%, 5%, 10% and 15% of the selected rubber contents in terms of the fine aggregation in volume. The rubber particles used in the experiments are made of the recycled tire. The fatigue performance of 60 standardized rubber concrete specimens with various rubber contents was experimentally studied under the constant-amplitude cyclic loading condition. This study provided a solution of the fatigue life of the rubber concrete, which was in good agreement with the Weibull distribution. It also provided the formulation of the double logarithmic fatigue equations indicating the characteristics of the rubber concrete and predicted the ultimate fatigue strength of rubber concrete with various rubber contents. Furthermore, discussion on the mechanism of fatigue damage of the rubber concrete was also undertaken and the results suggested that the fatigue process leading to the internal damage of rubber concrete would consist of three development phases, i.e., the nucleation, stable state and instable state. Under certain stress levels, the fatigue life and dynamic strain of the rubber concrete are higher than those of the ordinary concrete, and they increase to some extent with the rubber contents. Under the same strength level, the fatigue performance of the rubber concrete is better than that of the ordinary concrete.

机译：这项研究确定了橡胶混凝土的机械和疲劳性能，就体积的细集料而言，橡胶混凝土的性能由所选橡胶含量的0％，5％，10％和15％组成。实验中使用的橡胶颗粒由再生轮胎制成。在恒定振幅循环载荷条件下，对60种不同橡胶含量的标准化橡胶混凝土试样的疲劳性能进行了实验研究。这项研究为橡胶混凝土的疲劳寿命提供了解决方案，这与威布尔分布非常吻合。它还提供了表示橡胶混凝土特性的双对数疲劳方程式，并预测了各种橡胶含量的橡胶混凝土的极限疲劳强度。此外，还对橡胶混凝土的疲劳损伤机理进行了讨论，结果表明，导致橡胶混凝土内部损伤的疲劳过程将由成核，稳定状态和不稳定状态三个发展阶段组成。在一定的应力水平下，橡胶混凝土的疲劳寿命和动态应变高于普通混凝土，并且随着橡胶含量的增加而有所增加。在相同强度水平下，橡胶混凝土的疲劳性能优于普通混凝土。

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来源
《Construction and Building Materials》 |2013年第10期|711-719|共9页
作者
Feng Liu; Wanhu Zheng; Lijuan Li; Wenxian Feng; Guofang Ning;
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作者单位

School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China;

School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China;

School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China;

School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China;

School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Rubber concrete; Cyclic loads; Fatigue strength; Fatigue life;

机译：橡胶混凝土;循环载荷;疲劳强度;疲劳生活;

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专利

1. Effects of mechanical properties of concrete constituents including active mineral admixtures on fatigue behaviours of high performance concrete [J] . L.-P. GUO, A. CARPINTERI, A. SPAGNOLI, Fatigue & fracture of engineering materials and structures . 2010,第1期

机译：活性矿物掺合料等混凝土成分的力学性能对高性能混凝土疲劳性能的影响
2. Mechanical performances of mortar prisms and concrete slabs incorporating rubber aggregates [J] . Fantilli Alessandro P., Chiaia Bernardino Mechanics research communications . 2018,第期

机译：砂浆棱镜和混凝土板掺入橡胶骨料的机械性能
3. Fatigue Performance of Rubber Concrete in Hygrothermal Environment [J] . Yushan Liu, Jianyong Pang, Weijing Yao Advances in materials science and engineering . 2021,第a期

机译：湿热环境中橡胶混凝土的疲劳性能
4. Experimental study of mechanical and fatigue performance of rubber concrete [C] . Lijuan Li, Wanhu Zheng, Feng Liu, 13th International conference on fracture . 2013

机译：橡胶混凝土力学疲劳性能的试验研究
5. Using structural health monitoring data to evaluate performance of Rapid-Set concrete and using lead-core rubber base isolator to protect highway bridges. [D] . Dhiradhamvit, Kittinan. 2009

机译：使用结构健康监测数据评估快速固化混凝土的性能，并使用铅芯橡胶基础隔离器保护公路桥梁。
6. Static and Fatigue Behavior of Rubber-Sleeved Stud Shear Connectors as Part of Field-Cast Ultra-High Performance Concrete Connections [O] . Zhigang Zhang, Xiaoqing Xu 2020

机译：现场浇铸超高性能混凝土连接的橡胶套管螺柱剪切连接器的静态和疲劳行为
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 2. Production of HighPerformance Concrete [R] . Zia, P., Leming, M. L., Ahmad, S. H., 1993

机译：高性能混凝土的力学行为。第2卷。高性能混凝土的生产

Mechanical and fatigue performance of rubber concrete

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