| 摘要: |
| 研究了橡胶混凝土经不同温度作用后外观及抗压强度的变化规律.结果表明：橡胶混凝土经250℃真空温度作用后，可大幅度提高其抗压强度，其外观无明显变化；149μm（100目）橡胶混凝土抗压强度提高率大于4000μm（5目）橡胶混凝土；橡胶混凝土在空气中分别经250，500，800℃温度作用后，其表面留下了橡胶降解产物残留痕迹，抗压强度均有所降低，且149μm橡胶混凝土抗压强度降低率大于4000μm橡胶混凝土，但两者抗压强度降低率均小于混凝土对比样. |
| 关键词: 废旧橡胶 温度 混凝土 抗压强度 |
| DOI：10.3969/j.issn.1007 9629.2013.05.021 |
| 分类号: |
| 基金项目: |
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| Influence of Temperature on Compressive |
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Strengthof Rubberized ConcreteZHANG Hai bo, GUAN Xue mao, GOU Mi feng, LIU Xiao xing
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College of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454100, China
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| Abstract: |
| Experiments was conducted to study the influence of temperature on the performance of rubberized concrete. The obtained results show that under vacuum condition after exposure to 250℃ the morphology of rubberized concrete does not change significantly, while its strength rises remarkedly and the increase rate of the strength for the rubberized concrete using 149μm (100 mesh) rubber powder is higher than that for using 4000μm (5 mesh) rubber powder. After exposure to 250, 500, 800℃ in air, the compressive strength of the rubberized concrete using 149μm rubber powder reduces more than that for using 4000μm one. |
| Key words: scrap rubber temperature concrete compressive strength |
